/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:42:24,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:42:24,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:42:24,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:42:24,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:42:24,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:42:24,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:42:24,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:42:24,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:42:24,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:42:24,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:42:24,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:42:24,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:42:24,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:42:24,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:42:24,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:42:24,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:42:24,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:42:24,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:42:24,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:42:24,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:42:24,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:42:24,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:42:24,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:42:24,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:42:24,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:42:24,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:42:24,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:42:24,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:42:24,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:42:24,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:42:24,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:42:24,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:42:24,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:42:24,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:42:24,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:42:24,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:42:24,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:42:24,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:42:24,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:42:24,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:42:24,589 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-SemanticLbe.epf [2022-12-12 21:42:24,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:42:24,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:42:24,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:42:24,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:42:24,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:42:24,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:42:24,617 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:42:24,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:42:24,617 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:42:24,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:42:24,618 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:42:24,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:42:24,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:42:24,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:42:24,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:42:24,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:42:24,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:42:24,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:42:24,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:42:24,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:42:24,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:42:24,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:42:24,903 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:42:24,904 INFO L432 ainManager$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 [2022-12-12 21:42:25,984 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:42:26,253 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:42:26,253 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 21:42:26,267 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158ae5ea2/1ae29df036b34d63aea01a1337c14631/FLAGfe58e4582 [2022-12-12 21:42:26,283 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158ae5ea2/1ae29df036b34d63aea01a1337c14631 [2022-12-12 21:42:26,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:42:26,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:42:26,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:42:26,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:42:26,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:42:26,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674bf460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26, skipping insertion in model container [2022-12-12 21:42:26,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:42:26,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:42:26,471 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] [2022-12-12 21:42:26,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:42:26,621 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:42:26,629 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] [2022-12-12 21:42:26,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:26,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:26,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:42:26,696 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:42:26,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26 WrapperNode [2022-12-12 21:42:26,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:42:26,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:42:26,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:42:26,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:42:26,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,739 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-12 21:42:26,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:42:26,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:42:26,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:42:26,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:42:26,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:42:26,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:42:26,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:42:26,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:42:26,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (1/1) ... [2022-12-12 21:42:26,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:42:26,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:42:26,845 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) [2022-12-12 21:42:26,882 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 [2022-12-12 21:42:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:42:26,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:42:26,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:42:26,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:42:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:42:26,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:42:26,892 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:42:26,981 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:42:26,983 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:42:27,095 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:42:27,100 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:42:27,100 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:42:27,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:42:27 BoogieIcfgContainer [2022-12-12 21:42:27,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:42:27,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:42:27,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:42:27,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:42:27,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:42:26" (1/3) ... [2022-12-12 21:42:27,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ecaf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:42:27, skipping insertion in model container [2022-12-12 21:42:27,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:26" (2/3) ... [2022-12-12 21:42:27,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ecaf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:42:27, skipping insertion in model container [2022-12-12 21:42:27,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:42:27" (3/3) ... [2022-12-12 21:42:27,115 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 21:42:27,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:42:27,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 21:42:27,138 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:42:27,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:42:27,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-12 21:42:27,303 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-12 21:42:27,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:27,307 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. [2022-12-12 21:42:27,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-12 21:42:27,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-12 21:42:27,313 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:42:27,332 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-12 21:42:27,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2022-12-12 21:42:27,353 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-12 21:42:27,354 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:27,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-12 21:42:27,356 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2022-12-12 21:42:27,356 INFO L226 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-12 21:42:29,196 INFO L241 LiptonReduction]: Total number of compositions: 52 [2022-12-12 21:42:29,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:42:29,211 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;@1c697c2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:42:29,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 21:42:29,214 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-12 21:42:29,215 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:29,215 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:29,215 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:29,216 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)] === [2022-12-12 21:42:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1753090777, now seen corresponding path program 1 times [2022-12-12 21:42:29,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:29,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605812698] [2022-12-12 21:42:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:29,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:29,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:29,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605812698] [2022-12-12 21:42:29,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605812698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:29,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:29,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:42:29,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576251282] [2022-12-12 21:42:29,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:29,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:42:29,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:42:29,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:42:29,523 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:29,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-12 21:42:29,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:29,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:29,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:29,727 INFO L130 PetriNetUnfolder]: 1237/2076 cut-off events. [2022-12-12 21:42:29,728 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-12 21:42:29,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4088 conditions, 2076 events. 1237/2076 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 11576 event pairs, 510 based on Foata normal form. 110/1762 useless extension candidates. Maximal degree in co-relation 4077. Up to 986 conditions per place. [2022-12-12 21:42:29,742 INFO L137 encePairwiseOnDemand]: 18/27 looper letters, 30 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2022-12-12 21:42:29,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 175 flow [2022-12-12 21:42:29,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:42:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:42:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-12-12 21:42:29,750 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7160493827160493 [2022-12-12 21:42:29,754 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2022-12-12 21:42:29,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 43 transitions, 175 flow [2022-12-12 21:42:29,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 43 transitions, 175 flow [2022-12-12 21:42:29,763 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 43 transitions, 175 flow [2022-12-12 21:42:29,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-12 21:42:29,763 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:29,763 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:29,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:42:29,764 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)] === [2022-12-12 21:42:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1488760456, now seen corresponding path program 1 times [2022-12-12 21:42:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:29,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063655616] [2022-12-12 21:42:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:29,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:29,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:29,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063655616] [2022-12-12 21:42:29,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063655616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:29,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:29,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:29,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645331357] [2022-12-12 21:42:29,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:29,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:42:29,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:29,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:42:29,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:42:29,888 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:29,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 43 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-12-12 21:42:29,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:29,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:29,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:30,083 INFO L130 PetriNetUnfolder]: 1174/1982 cut-off events. [2022-12-12 21:42:30,084 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-12 21:42:30,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5728 conditions, 1982 events. 1174/1982 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 10988 event pairs, 108 based on Foata normal form. 9/1579 useless extension candidates. Maximal degree in co-relation 5714. Up to 916 conditions per place. [2022-12-12 21:42:30,093 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 51 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2022-12-12 21:42:30,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 65 transitions, 387 flow [2022-12-12 21:42:30,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:42:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:42:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2022-12-12 21:42:30,095 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-12 21:42:30,096 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2022-12-12 21:42:30,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 65 transitions, 387 flow [2022-12-12 21:42:30,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 65 transitions, 387 flow [2022-12-12 21:42:30,103 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 65 transitions, 387 flow [2022-12-12 21:42:30,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-12-12 21:42:30,103 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:30,104 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:30,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:42:30,104 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)] === [2022-12-12 21:42:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1093051979, now seen corresponding path program 1 times [2022-12-12 21:42:30,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:30,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621049] [2022-12-12 21:42:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:30,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:30,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:30,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621049] [2022-12-12 21:42:30,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:30,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:30,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59373865] [2022-12-12 21:42:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:42:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:30,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:42:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:42:30,254 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:30,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 65 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-12 21:42:30,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:30,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:30,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:30,490 INFO L130 PetriNetUnfolder]: 1138/1935 cut-off events. [2022-12-12 21:42:30,490 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-12-12 21:42:30,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7346 conditions, 1935 events. 1138/1935 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 10840 event pairs, 62 based on Foata normal form. 7/1539 useless extension candidates. Maximal degree in co-relation 7329. Up to 898 conditions per place. [2022-12-12 21:42:30,529 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 68 selfloop transitions, 18 changer transitions 0/92 dead transitions. [2022-12-12 21:42:30,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 92 transitions, 733 flow [2022-12-12 21:42:30,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:42:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:42:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2022-12-12 21:42:30,532 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2022-12-12 21:42:30,533 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2022-12-12 21:42:30,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 92 transitions, 733 flow [2022-12-12 21:42:30,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 92 transitions, 733 flow [2022-12-12 21:42:30,546 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 92 transitions, 733 flow [2022-12-12 21:42:30,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-12 21:42:30,546 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:30,546 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:30,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:42:30,547 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)] === [2022-12-12 21:42:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1093053932, now seen corresponding path program 1 times [2022-12-12 21:42:30,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:30,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353267227] [2022-12-12 21:42:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:30,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353267227] [2022-12-12 21:42:30,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353267227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:30,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:30,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933810091] [2022-12-12 21:42:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:42:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:30,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:42:30,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:42:30,697 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 21:42:30,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 92 transitions, 733 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 21:42:30,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:30,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 21:42:30,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:30,892 INFO L130 PetriNetUnfolder]: 1089/1854 cut-off events. [2022-12-12 21:42:30,892 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2022-12-12 21:42:30,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8635 conditions, 1854 events. 1089/1854 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 10171 event pairs, 62 based on Foata normal form. 8/1470 useless extension candidates. Maximal degree in co-relation 8615. Up to 1375 conditions per place. [2022-12-12 21:42:30,907 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 92 selfloop transitions, 8 changer transitions 0/113 dead transitions. [2022-12-12 21:42:30,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 113 transitions, 1107 flow [2022-12-12 21:42:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:42:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:42:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2022-12-12 21:42:30,909 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-12 21:42:30,910 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places. [2022-12-12 21:42:30,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 113 transitions, 1107 flow [2022-12-12 21:42:30,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 113 transitions, 1107 flow [2022-12-12 21:42:30,926 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 113 transitions, 1107 flow [2022-12-12 21:42:30,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 21:42:30,926 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:30,926 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:30,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:42:30,927 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)] === [2022-12-12 21:42:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash -474693334, now seen corresponding path program 1 times [2022-12-12 21:42:30,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:30,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944061315] [2022-12-12 21:42:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:30,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:31,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:31,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944061315] [2022-12-12 21:42:31,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944061315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:31,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:31,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:42:31,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924635367] [2022-12-12 21:42:31,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:31,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:42:31,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:42:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:42:31,011 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2022-12-12 21:42:31,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 113 transitions, 1107 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-12 21:42:31,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:31,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2022-12-12 21:42:31,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:31,125 INFO L130 PetriNetUnfolder]: 1048/1781 cut-off events. [2022-12-12 21:42:31,125 INFO L131 PetriNetUnfolder]: For 477/477 co-relation queries the response was YES. [2022-12-12 21:42:31,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9648 conditions, 1781 events. 1048/1781 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 9501 event pairs, 30 based on Foata normal form. 12/1414 useless extension candidates. Maximal degree in co-relation 9625. Up to 1313 conditions per place. [2022-12-12 21:42:31,135 INFO L137 encePairwiseOnDemand]: 24/27 looper letters, 106 selfloop transitions, 10 changer transitions 0/139 dead transitions. [2022-12-12 21:42:31,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 139 transitions, 1599 flow [2022-12-12 21:42:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:42:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:42:31,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2022-12-12 21:42:31,138 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2022-12-12 21:42:31,140 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2022-12-12 21:42:31,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 139 transitions, 1599 flow [2022-12-12 21:42:31,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 139 transitions, 1599 flow [2022-12-12 21:42:31,148 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 139 transitions, 1599 flow [2022-12-12 21:42:31,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-12 21:42:31,149 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:31,149 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:31,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:42:31,149 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)] === [2022-12-12 21:42:31,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:31,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1830591812, now seen corresponding path program 1 times [2022-12-12 21:42:31,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:31,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614615632] [2022-12-12 21:42:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:31,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:31,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614615632] [2022-12-12 21:42:31,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614615632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:31,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:31,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:31,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671400112] [2022-12-12 21:42:31,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:31,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:42:31,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:31,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:42:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:42:31,256 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:31,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 139 transitions, 1599 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-12 21:42:31,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:31,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:31,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:31,528 INFO L130 PetriNetUnfolder]: 2246/3594 cut-off events. [2022-12-12 21:42:31,528 INFO L131 PetriNetUnfolder]: For 6533/6611 co-relation queries the response was YES. [2022-12-12 21:42:31,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20970 conditions, 3594 events. 2246/3594 cut-off events. For 6533/6611 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 21200 event pairs, 201 based on Foata normal form. 173/3058 useless extension candidates. Maximal degree in co-relation 20944. Up to 2447 conditions per place. [2022-12-12 21:42:31,552 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 121 selfloop transitions, 48 changer transitions 137/326 dead transitions. [2022-12-12 21:42:31,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 326 transitions, 4383 flow [2022-12-12 21:42:31,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:42:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:42:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2022-12-12 21:42:31,554 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2022-12-12 21:42:31,554 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2022-12-12 21:42:31,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 326 transitions, 4383 flow [2022-12-12 21:42:31,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 189 transitions, 2525 flow [2022-12-12 21:42:31,570 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 189 transitions, 2525 flow [2022-12-12 21:42:31,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-12 21:42:31,571 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:31,571 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:31,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:42:31,571 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)] === [2022-12-12 21:42:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1046494831, now seen corresponding path program 1 times [2022-12-12 21:42:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:31,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060442368] [2022-12-12 21:42:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:31,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:31,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060442368] [2022-12-12 21:42:31,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060442368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:31,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:31,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:42:31,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090064900] [2022-12-12 21:42:31,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:31,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:42:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:31,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:42:31,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:42:31,658 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:31,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 189 transitions, 2525 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-12 21:42:31,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:31,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:31,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:31,953 INFO L130 PetriNetUnfolder]: 1568/2690 cut-off events. [2022-12-12 21:42:31,953 INFO L131 PetriNetUnfolder]: For 5593/5777 co-relation queries the response was YES. [2022-12-12 21:42:31,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18173 conditions, 2690 events. 1568/2690 cut-off events. For 5593/5777 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 16372 event pairs, 64 based on Foata normal form. 260/2448 useless extension candidates. Maximal degree in co-relation 18144. Up to 2268 conditions per place. [2022-12-12 21:42:31,970 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 106 selfloop transitions, 75 changer transitions 83/284 dead transitions. [2022-12-12 21:42:31,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 284 transitions, 4299 flow [2022-12-12 21:42:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:42:31,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:42:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2022-12-12 21:42:31,972 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6975308641975309 [2022-12-12 21:42:31,972 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places. [2022-12-12 21:42:31,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 284 transitions, 4299 flow [2022-12-12 21:42:31,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 201 transitions, 3031 flow [2022-12-12 21:42:31,985 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 201 transitions, 3031 flow [2022-12-12 21:42:31,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-12 21:42:31,985 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:31,986 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:31,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:42:31,986 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)] === [2022-12-12 21:42:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1477264335, now seen corresponding path program 1 times [2022-12-12 21:42:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:31,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487067591] [2022-12-12 21:42:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:31,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:32,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:32,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487067591] [2022-12-12 21:42:32,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487067591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:32,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:32,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:42:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384124529] [2022-12-12 21:42:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:32,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:42:32,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:42:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:42:32,072 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:32,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 201 transitions, 3031 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-12 21:42:32,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:32,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:32,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:32,335 INFO L130 PetriNetUnfolder]: 1489/2679 cut-off events. [2022-12-12 21:42:32,335 INFO L131 PetriNetUnfolder]: For 6590/6711 co-relation queries the response was YES. [2022-12-12 21:42:32,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20106 conditions, 2679 events. 1489/2679 cut-off events. For 6590/6711 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 17447 event pairs, 90 based on Foata normal form. 150/2330 useless extension candidates. Maximal degree in co-relation 20074. Up to 2260 conditions per place. [2022-12-12 21:42:32,348 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 151 selfloop transitions, 32 changer transitions 75/270 dead transitions. [2022-12-12 21:42:32,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 270 transitions, 4551 flow [2022-12-12 21:42:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:42:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:42:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2022-12-12 21:42:32,349 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2022-12-12 21:42:32,349 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2022-12-12 21:42:32,349 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 270 transitions, 4551 flow [2022-12-12 21:42:32,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 195 transitions, 3291 flow [2022-12-12 21:42:32,358 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 195 transitions, 3291 flow [2022-12-12 21:42:32,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-12 21:42:32,359 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:32,359 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:32,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:42:32,359 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)] === [2022-12-12 21:42:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 270217025, now seen corresponding path program 2 times [2022-12-12 21:42:32,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862318307] [2022-12-12 21:42:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:32,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:32,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862318307] [2022-12-12 21:42:32,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862318307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:32,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:32,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:42:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102689036] [2022-12-12 21:42:32,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:32,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:42:32,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:32,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:42:32,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:42:32,415 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2022-12-12 21:42:32,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 195 transitions, 3291 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-12-12 21:42:32,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:32,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2022-12-12 21:42:32,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:32,605 INFO L130 PetriNetUnfolder]: 1143/2087 cut-off events. [2022-12-12 21:42:32,605 INFO L131 PetriNetUnfolder]: For 7401/7479 co-relation queries the response was YES. [2022-12-12 21:42:32,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17221 conditions, 2087 events. 1143/2087 cut-off events. For 7401/7479 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 13092 event pairs, 63 based on Foata normal form. 99/1812 useless extension candidates. Maximal degree in co-relation 17186. Up to 1728 conditions per place. [2022-12-12 21:42:32,613 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 112 selfloop transitions, 13 changer transitions 91/230 dead transitions. [2022-12-12 21:42:32,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 230 transitions, 4327 flow [2022-12-12 21:42:32,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:42:32,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:42:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2022-12-12 21:42:32,614 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6203703703703703 [2022-12-12 21:42:32,615 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 23 predicate places. [2022-12-12 21:42:32,615 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 230 transitions, 4327 flow [2022-12-12 21:42:32,619 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 139 transitions, 2593 flow [2022-12-12 21:42:32,620 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 139 transitions, 2593 flow [2022-12-12 21:42:32,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-12-12 21:42:32,620 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:42:32,620 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:32,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 21:42:32,620 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)] === [2022-12-12 21:42:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:42:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2104721554, now seen corresponding path program 1 times [2022-12-12 21:42:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:42:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444739400] [2022-12-12 21:42:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:42:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:42:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:42:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:42:32,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:42:32,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444739400] [2022-12-12 21:42:32,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444739400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:42:32,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:42:32,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:42:32,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944229070] [2022-12-12 21:42:32,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:42:32,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 21:42:32,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:42:32,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 21:42:32,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 21:42:32,688 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2022-12-12 21:42:32,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 139 transitions, 2593 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-12-12 21:42:32,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:42:32,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2022-12-12 21:42:32,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:42:32,814 INFO L130 PetriNetUnfolder]: 481/930 cut-off events. [2022-12-12 21:42:32,814 INFO L131 PetriNetUnfolder]: For 4575/4699 co-relation queries the response was YES. [2022-12-12 21:42:32,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8768 conditions, 930 events. 481/930 cut-off events. For 4575/4699 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5086 event pairs, 0 based on Foata normal form. 111/887 useless extension candidates. Maximal degree in co-relation 8730. Up to 755 conditions per place. [2022-12-12 21:42:32,817 INFO L137 encePairwiseOnDemand]: 15/27 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2022-12-12 21:42:32,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 148 transitions, 3011 flow [2022-12-12 21:42:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 21:42:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 21:42:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 97 transitions. [2022-12-12 21:42:32,818 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5132275132275133 [2022-12-12 21:42:32,818 INFO L295 CegarLoopForPetriNet]: 36 programPoint places, 28 predicate places. [2022-12-12 21:42:32,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 148 transitions, 3011 flow [2022-12-12 21:42:32,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 21:42:32,820 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 21:42:32,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-12-12 21:42:32,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 21:42:32,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 21:42:32,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 21:42:32,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 21:42:32,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 21:42:32,823 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:42:32,824 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:42:32,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:42:32,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:42:32 BasicIcfg [2022-12-12 21:42:32,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:42:32,827 INFO L158 Benchmark]: Toolchain (without parser) took 6541.36ms. Allocated memory was 198.2MB in the beginning and 360.7MB in the end (delta: 162.5MB). Free memory was 172.4MB in the beginning and 232.0MB in the end (delta: -59.5MB). Peak memory consumption was 103.3MB. Max. memory is 8.0GB. [2022-12-12 21:42:32,827 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:42:32,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.07ms. Allocated memory is still 198.2MB. Free memory was 172.1MB in the beginning and 149.0MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 21:42:32,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.03ms. Allocated memory is still 198.2MB. Free memory was 149.0MB in the beginning and 146.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:42:32,828 INFO L158 Benchmark]: Boogie Preprocessor took 27.39ms. Allocated memory is still 198.2MB. Free memory was 146.9MB in the beginning and 145.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 21:42:32,828 INFO L158 Benchmark]: RCFGBuilder took 333.76ms. Allocated memory is still 198.2MB. Free memory was 145.5MB in the beginning and 132.0MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 21:42:32,828 INFO L158 Benchmark]: TraceAbstraction took 5723.21ms. Allocated memory was 198.2MB in the beginning and 360.7MB in the end (delta: 162.5MB). Free memory was 131.0MB in the beginning and 232.0MB in the end (delta: -101.0MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2022-12-12 21:42:32,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.07ms. Allocated memory is still 198.2MB. Free memory was 172.1MB in the beginning and 149.0MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.03ms. Allocated memory is still 198.2MB. Free memory was 149.0MB in the beginning and 146.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.39ms. Allocated memory is still 198.2MB. Free memory was 146.9MB in the beginning and 145.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 333.76ms. Allocated memory is still 198.2MB. Free memory was 145.5MB in the beginning and 132.0MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5723.21ms. Allocated memory was 198.2MB in the beginning and 360.7MB in the end (delta: 162.5MB). Free memory was 131.0MB in the beginning and 232.0MB in the end (delta: -101.0MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 78 PlacesBefore, 36 PlacesAfterwards, 69 TransitionsBefore, 27 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1021, independent: 968, independent conditional: 968, independent unconditional: 0, dependent: 53, dependent conditional: 53, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1021, independent: 968, independent conditional: 0, independent unconditional: 968, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1021, independent: 968, independent conditional: 0, independent unconditional: 968, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1021, independent: 968, independent conditional: 0, independent unconditional: 968, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 756, independent: 716, independent conditional: 0, independent unconditional: 716, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 756, independent: 702, independent conditional: 0, independent unconditional: 702, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 130, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1021, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 756, unknown conditional: 0, unknown unconditional: 756] , Statistics on independence cache: Total cache size (in pairs): 1212, Positive cache size: 1172, Positive conditional cache size: 0, Positive unconditional cache size: 1172, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 247 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 247 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 660 IncrementalHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 17 mSDtfsCounter, 660 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3291occurred in iteration=8, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 9131 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 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! [2022-12-12 21:42:32,858 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...