/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 01:50:22,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 01:50:22,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 01:50:22,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 01:50:22,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 01:50:22,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 01:50:22,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 01:50:22,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 01:50:22,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 01:50:22,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 01:50:22,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 01:50:22,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 01:50:22,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 01:50:22,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 01:50:22,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 01:50:22,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 01:50:22,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 01:50:22,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 01:50:22,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 01:50:22,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 01:50:22,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 01:50:22,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 01:50:22,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 01:50:22,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 01:50:22,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 01:50:22,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 01:50:22,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 01:50:22,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 01:50:22,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 01:50:22,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 01:50:22,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 01:50:22,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 01:50:22,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 01:50:22,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 01:50:22,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 01:50:22,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 01:50:22,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 01:50:22,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 01:50:22,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 01:50:22,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 01:50:22,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 01:50:22,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 01:50:22,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 01:50:22,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 01:50:22,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 01:50:22,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 01:50:22,801 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 01:50:22,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 01:50:22,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 01:50:22,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 01:50:22,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 01:50:22,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 01:50:22,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 01:50:22,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 01:50:22,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 01:50:22,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 01:50:22,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 01:50:22,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:50:22,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 01:50:22,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 01:50:22,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 01:50:22,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 01:50:22,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 01:50:22,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 01:50:22,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 01:50:23,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 01:50:23,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 01:50:23,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 01:50:23,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 01:50:23,107 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 01:50:23,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c [2022-12-13 01:50:24,103 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 01:50:24,280 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 01:50:24,280 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c [2022-12-13 01:50:24,285 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13f849cf4/fab06db5a9da419f9571504d93b5793c/FLAG4e708350e [2022-12-13 01:50:24,298 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13f849cf4/fab06db5a9da419f9571504d93b5793c [2022-12-13 01:50:24,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 01:50:24,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 01:50:24,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 01:50:24,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 01:50:24,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 01:50:24,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b2f407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24, skipping insertion in model container [2022-12-13 01:50:24,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 01:50:24,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 01:50:24,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2022-12-13 01:50:24,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:50:24,500 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 01:50:24,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 01:50:24,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 01:50:24,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2022-12-13 01:50:24,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:50:24,534 INFO L208 MainTranslator]: Completed translation [2022-12-13 01:50:24,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24 WrapperNode [2022-12-13 01:50:24,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 01:50:24,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 01:50:24,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 01:50:24,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 01:50:24,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,595 INFO L138 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 336 [2022-12-13 01:50:24,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 01:50:24,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 01:50:24,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 01:50:24,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 01:50:24,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 01:50:24,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 01:50:24,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 01:50:24,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 01:50:24,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (1/1) ... [2022-12-13 01:50:24,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:50:24,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:50:24,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 01:50:24,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 01:50:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 01:50:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 01:50:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 01:50:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 01:50:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 01:50:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 01:50:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 01:50:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 01:50:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 01:50:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 01:50:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 01:50:24,746 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 01:50:24,890 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 01:50:24,892 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 01:50:25,276 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 01:50:25,451 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 01:50:25,452 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 01:50:25,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:50:25 BoogieIcfgContainer [2022-12-13 01:50:25,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 01:50:25,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 01:50:25,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 01:50:25,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 01:50:25,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:50:24" (1/3) ... [2022-12-13 01:50:25,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a4487a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:50:25, skipping insertion in model container [2022-12-13 01:50:25,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:50:24" (2/3) ... [2022-12-13 01:50:25,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a4487a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:50:25, skipping insertion in model container [2022-12-13 01:50:25,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:50:25" (3/3) ... [2022-12-13 01:50:25,464 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-1.wvr-bad.c [2022-12-13 01:50:25,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 01:50:25,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 01:50:25,478 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 01:50:25,542 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 01:50:25,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 253 transitions, 530 flow [2022-12-13 01:50:25,663 INFO L130 PetriNetUnfolder]: 27/250 cut-off events. [2022-12-13 01:50:25,663 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 01:50:25,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 250 events. 27/250 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 176 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 211. Up to 6 conditions per place. [2022-12-13 01:50:25,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 253 transitions, 530 flow [2022-12-13 01:50:25,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 240 transitions, 498 flow [2022-12-13 01:50:25,684 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:25,697 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 240 transitions, 498 flow [2022-12-13 01:50:25,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 240 transitions, 498 flow [2022-12-13 01:50:25,747 INFO L130 PetriNetUnfolder]: 27/240 cut-off events. [2022-12-13 01:50:25,748 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 01:50:25,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 240 events. 27/240 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 176 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 211. Up to 6 conditions per place. [2022-12-13 01:50:25,752 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 240 transitions, 498 flow [2022-12-13 01:50:25,753 INFO L226 LiptonReduction]: Number of co-enabled transitions 2442 [2022-12-13 01:50:34,221 INFO L241 LiptonReduction]: Total number of compositions: 210 [2022-12-13 01:50:34,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 01:50:34,238 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69ebfcdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 01:50:34,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 01:50:34,245 INFO L130 PetriNetUnfolder]: 6/24 cut-off events. [2022-12-13 01:50:34,245 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 01:50:34,245 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:34,246 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:34,246 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)] === [2022-12-13 01:50:34,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1929606784, now seen corresponding path program 1 times [2022-12-13 01:50:34,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:34,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015720547] [2022-12-13 01:50:34,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:34,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:34,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015720547] [2022-12-13 01:50:34,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015720547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:50:34,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:50:34,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 01:50:34,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527439191] [2022-12-13 01:50:34,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:50:34,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 01:50:34,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:34,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 01:50:34,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 01:50:34,754 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-13 01:50:34,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 68 flow. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:34,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:34,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-13 01:50:34,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:34,881 INFO L130 PetriNetUnfolder]: 164/251 cut-off events. [2022-12-13 01:50:34,881 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-13 01:50:34,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 251 events. 164/251 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 607 event pairs, 37 based on Foata normal form. 1/161 useless extension candidates. Maximal degree in co-relation 376. Up to 167 conditions per place. [2022-12-13 01:50:34,885 INFO L137 encePairwiseOnDemand]: 20/25 looper letters, 36 selfloop transitions, 4 changer transitions 1/41 dead transitions. [2022-12-13 01:50:34,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 41 transitions, 197 flow [2022-12-13 01:50:34,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 01:50:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 01:50:34,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2022-12-13 01:50:34,894 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-13 01:50:34,896 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 68 flow. Second operand 3 states and 42 transitions. [2022-12-13 01:50:34,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 41 transitions, 197 flow [2022-12-13 01:50:34,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 41 transitions, 175 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 01:50:34,903 INFO L231 Difference]: Finished difference. Result has 26 places, 28 transitions, 82 flow [2022-12-13 01:50:34,908 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=26, PETRI_TRANSITIONS=28} [2022-12-13 01:50:34,913 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2022-12-13 01:50:34,913 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:34,914 INFO L89 Accepts]: Start accepts. Operand has 26 places, 28 transitions, 82 flow [2022-12-13 01:50:34,916 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:34,916 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:34,916 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 28 transitions, 82 flow [2022-12-13 01:50:34,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 28 transitions, 82 flow [2022-12-13 01:50:34,929 INFO L130 PetriNetUnfolder]: 14/44 cut-off events. [2022-12-13 01:50:34,929 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:50:34,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 44 events. 14/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 33. Up to 14 conditions per place. [2022-12-13 01:50:34,933 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 28 transitions, 82 flow [2022-12-13 01:50:34,934 INFO L226 LiptonReduction]: Number of co-enabled transitions 120 [2022-12-13 01:50:34,934 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:50:34,935 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-13 01:50:34,935 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 28 transitions, 82 flow [2022-12-13 01:50:34,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:34,935 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:34,935 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:34,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 01:50:34,936 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)] === [2022-12-13 01:50:34,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash 495866599, now seen corresponding path program 1 times [2022-12-13 01:50:34,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:34,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429684310] [2022-12-13 01:50:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:34,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:35,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:35,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429684310] [2022-12-13 01:50:35,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429684310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:50:35,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:50:35,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:50:35,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743289975] [2022-12-13 01:50:35,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:50:35,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:50:35,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:35,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:50:35,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:50:35,116 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-13 01:50:35,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 28 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:35,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:35,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-13 01:50:35,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:35,253 INFO L130 PetriNetUnfolder]: 299/473 cut-off events. [2022-12-13 01:50:35,253 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2022-12-13 01:50:35,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 473 events. 299/473 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1380 event pairs, 174 based on Foata normal form. 28/495 useless extension candidates. Maximal degree in co-relation 350. Up to 252 conditions per place. [2022-12-13 01:50:35,258 INFO L137 encePairwiseOnDemand]: 21/25 looper letters, 50 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2022-12-13 01:50:35,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 53 transitions, 256 flow [2022-12-13 01:50:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:50:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:50:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2022-12-13 01:50:35,260 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49 [2022-12-13 01:50:35,260 INFO L175 Difference]: Start difference. First operand has 26 places, 28 transitions, 82 flow. Second operand 4 states and 49 transitions. [2022-12-13 01:50:35,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 53 transitions, 256 flow [2022-12-13 01:50:35,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 53 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 01:50:35,263 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 100 flow [2022-12-13 01:50:35,263 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2022-12-13 01:50:35,263 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 01:50:35,263 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:35,263 INFO L89 Accepts]: Start accepts. Operand has 30 places, 30 transitions, 100 flow [2022-12-13 01:50:35,265 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:35,265 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:35,266 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 30 transitions, 100 flow [2022-12-13 01:50:35,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 30 transitions, 100 flow [2022-12-13 01:50:35,276 INFO L130 PetriNetUnfolder]: 21/79 cut-off events. [2022-12-13 01:50:35,277 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 01:50:35,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 79 events. 21/79 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 199 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 65. Up to 21 conditions per place. [2022-12-13 01:50:35,277 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 30 transitions, 100 flow [2022-12-13 01:50:35,277 INFO L226 LiptonReduction]: Number of co-enabled transitions 120 [2022-12-13 01:50:39,135 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:50:39,136 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3873 [2022-12-13 01:50:39,136 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 106 flow [2022-12-13 01:50:39,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:39,136 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:39,137 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:39,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 01:50:39,137 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)] === [2022-12-13 01:50:39,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:39,137 INFO L85 PathProgramCache]: Analyzing trace with hash 241586444, now seen corresponding path program 1 times [2022-12-13 01:50:39,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:39,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767265442] [2022-12-13 01:50:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:39,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:39,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:39,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767265442] [2022-12-13 01:50:39,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767265442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:50:39,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:50:39,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 01:50:39,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934394596] [2022-12-13 01:50:39,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:50:39,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 01:50:39,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:39,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 01:50:39,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 01:50:39,410 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-13 01:50:39,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 30 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:39,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:39,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-13 01:50:39,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:39,514 INFO L130 PetriNetUnfolder]: 263/429 cut-off events. [2022-12-13 01:50:39,514 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-12-13 01:50:39,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 429 events. 263/429 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1378 event pairs, 74 based on Foata normal form. 28/451 useless extension candidates. Maximal degree in co-relation 570. Up to 261 conditions per place. [2022-12-13 01:50:39,516 INFO L137 encePairwiseOnDemand]: 21/27 looper letters, 34 selfloop transitions, 4 changer transitions 2/40 dead transitions. [2022-12-13 01:50:39,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 40 transitions, 208 flow [2022-12-13 01:50:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 01:50:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 01:50:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2022-12-13 01:50:39,517 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5061728395061729 [2022-12-13 01:50:39,517 INFO L175 Difference]: Start difference. First operand has 30 places, 30 transitions, 106 flow. Second operand 3 states and 41 transitions. [2022-12-13 01:50:39,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 40 transitions, 208 flow [2022-12-13 01:50:39,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 40 transitions, 200 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 01:50:39,518 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 96 flow [2022-12-13 01:50:39,518 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2022-12-13 01:50:39,519 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 01:50:39,519 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:39,519 INFO L89 Accepts]: Start accepts. Operand has 31 places, 28 transitions, 96 flow [2022-12-13 01:50:39,520 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:39,520 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:39,520 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 28 transitions, 96 flow [2022-12-13 01:50:39,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 96 flow [2022-12-13 01:50:39,527 INFO L130 PetriNetUnfolder]: 14/63 cut-off events. [2022-12-13 01:50:39,527 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 01:50:39,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 63 events. 14/63 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 50. Up to 14 conditions per place. [2022-12-13 01:50:39,528 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 28 transitions, 96 flow [2022-12-13 01:50:39,528 INFO L226 LiptonReduction]: Number of co-enabled transitions 102 [2022-12-13 01:50:39,528 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:50:39,529 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-13 01:50:39,529 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 96 flow [2022-12-13 01:50:39,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:39,529 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:39,529 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:39,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 01:50:39,530 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)] === [2022-12-13 01:50:39,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash 21755367, now seen corresponding path program 1 times [2022-12-13 01:50:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:39,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590312984] [2022-12-13 01:50:39,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:39,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:39,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590312984] [2022-12-13 01:50:39,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590312984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:50:39,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:50:39,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:50:39,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154942707] [2022-12-13 01:50:39,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:50:39,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:50:39,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:39,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:50:39,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:50:39,685 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 26 [2022-12-13 01:50:39,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:39,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:39,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 26 [2022-12-13 01:50:39,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:39,796 INFO L130 PetriNetUnfolder]: 261/440 cut-off events. [2022-12-13 01:50:39,796 INFO L131 PetriNetUnfolder]: For 274/274 co-relation queries the response was YES. [2022-12-13 01:50:39,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 440 events. 261/440 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1365 event pairs, 114 based on Foata normal form. 44/479 useless extension candidates. Maximal degree in co-relation 892. Up to 252 conditions per place. [2022-12-13 01:50:39,798 INFO L137 encePairwiseOnDemand]: 22/26 looper letters, 48 selfloop transitions, 3 changer transitions 1/52 dead transitions. [2022-12-13 01:50:39,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 52 transitions, 268 flow [2022-12-13 01:50:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:50:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:50:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2022-12-13 01:50:39,800 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 01:50:39,800 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 96 flow. Second operand 4 states and 52 transitions. [2022-12-13 01:50:39,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 52 transitions, 268 flow [2022-12-13 01:50:39,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 52 transitions, 252 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-13 01:50:39,803 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 96 flow [2022-12-13 01:50:39,803 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2022-12-13 01:50:39,804 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2022-12-13 01:50:39,804 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:39,804 INFO L89 Accepts]: Start accepts. Operand has 32 places, 28 transitions, 96 flow [2022-12-13 01:50:39,806 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:39,806 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:39,806 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 28 transitions, 96 flow [2022-12-13 01:50:39,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 96 flow [2022-12-13 01:50:39,813 INFO L130 PetriNetUnfolder]: 9/45 cut-off events. [2022-12-13 01:50:39,813 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 01:50:39,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 45 events. 9/45 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 49. Up to 13 conditions per place. [2022-12-13 01:50:39,814 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 28 transitions, 96 flow [2022-12-13 01:50:39,814 INFO L226 LiptonReduction]: Number of co-enabled transitions 96 [2022-12-13 01:50:39,815 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:50:39,821 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-13 01:50:39,821 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 96 flow [2022-12-13 01:50:39,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:39,821 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:39,821 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:39,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 01:50:39,821 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)] === [2022-12-13 01:50:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1267645155, now seen corresponding path program 1 times [2022-12-13 01:50:39,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:39,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056205128] [2022-12-13 01:50:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:39,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:40,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:40,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056205128] [2022-12-13 01:50:40,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056205128] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:50:40,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532900068] [2022-12-13 01:50:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:40,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:50:40,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:50:40,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:50:40,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 01:50:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:40,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 01:50:40,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:50:40,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-12-13 01:50:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:40,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:50:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:40,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532900068] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:50:40,498 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:50:40,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-13 01:50:40,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114574249] [2022-12-13 01:50:40,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:50:40,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 01:50:40,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:40,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 01:50:40,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-12-13 01:50:40,499 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-13 01:50:40,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 96 flow. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:40,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:40,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-13 01:50:40,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:40,596 INFO L130 PetriNetUnfolder]: 270/434 cut-off events. [2022-12-13 01:50:40,596 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2022-12-13 01:50:40,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 434 events. 270/434 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1354 event pairs, 53 based on Foata normal form. 1/432 useless extension candidates. Maximal degree in co-relation 542. Up to 281 conditions per place. [2022-12-13 01:50:40,598 INFO L137 encePairwiseOnDemand]: 21/25 looper letters, 41 selfloop transitions, 4 changer transitions 3/48 dead transitions. [2022-12-13 01:50:40,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 48 transitions, 246 flow [2022-12-13 01:50:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:50:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:50:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-12-13 01:50:40,600 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.47 [2022-12-13 01:50:40,600 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 96 flow. Second operand 4 states and 47 transitions. [2022-12-13 01:50:40,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 48 transitions, 246 flow [2022-12-13 01:50:40,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 48 transitions, 242 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 01:50:40,602 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 121 flow [2022-12-13 01:50:40,602 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2022-12-13 01:50:40,604 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2022-12-13 01:50:40,604 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:40,604 INFO L89 Accepts]: Start accepts. Operand has 33 places, 30 transitions, 121 flow [2022-12-13 01:50:40,605 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:40,605 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:40,605 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 30 transitions, 121 flow [2022-12-13 01:50:40,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 121 flow [2022-12-13 01:50:40,612 INFO L130 PetriNetUnfolder]: 10/49 cut-off events. [2022-12-13 01:50:40,612 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 01:50:40,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 49 events. 10/49 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 47. Up to 15 conditions per place. [2022-12-13 01:50:40,613 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 30 transitions, 121 flow [2022-12-13 01:50:40,613 INFO L226 LiptonReduction]: Number of co-enabled transitions 116 [2022-12-13 01:50:40,615 WARN L322 ript$VariableManager]: TermVariable LBE552 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:40,615 WARN L322 ript$VariableManager]: TermVariable LBE230 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:40,615 WARN L322 ript$VariableManager]: TermVariable LBE250 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:40,615 WARN L322 ript$VariableManager]: TermVariable LBE617 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:40,616 WARN L322 ript$VariableManager]: TermVariable LBE604 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:40,616 WARN L322 ript$VariableManager]: TermVariable LBE218 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:41,302 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:50:41,303 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 699 [2022-12-13 01:50:41,303 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 122 flow [2022-12-13 01:50:41,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:41,303 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:41,303 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:41,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 01:50:41,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:50:41,508 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)] === [2022-12-13 01:50:41,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1139043018, now seen corresponding path program 1 times [2022-12-13 01:50:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:41,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449045921] [2022-12-13 01:50:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:41,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:41,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449045921] [2022-12-13 01:50:41,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449045921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:50:41,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:50:41,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:50:41,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608880155] [2022-12-13 01:50:41,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:50:41,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:50:41,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:41,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:50:41,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:50:41,799 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 26 [2022-12-13 01:50:41,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:41,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:41,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 26 [2022-12-13 01:50:41,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:41,951 INFO L130 PetriNetUnfolder]: 323/532 cut-off events. [2022-12-13 01:50:41,952 INFO L131 PetriNetUnfolder]: For 411/411 co-relation queries the response was YES. [2022-12-13 01:50:41,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 532 events. 323/532 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1813 event pairs, 158 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 817. Up to 449 conditions per place. [2022-12-13 01:50:41,954 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 40 selfloop transitions, 4 changer transitions 7/51 dead transitions. [2022-12-13 01:50:41,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 277 flow [2022-12-13 01:50:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:50:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:50:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2022-12-13 01:50:41,954 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-12-13 01:50:41,955 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 122 flow. Second operand 4 states and 48 transitions. [2022-12-13 01:50:41,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 277 flow [2022-12-13 01:50:41,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 51 transitions, 266 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 01:50:41,956 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 143 flow [2022-12-13 01:50:41,956 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2022-12-13 01:50:41,956 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2022-12-13 01:50:41,956 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:41,957 INFO L89 Accepts]: Start accepts. Operand has 36 places, 33 transitions, 143 flow [2022-12-13 01:50:41,957 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:41,957 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:41,957 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 33 transitions, 143 flow [2022-12-13 01:50:41,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 143 flow [2022-12-13 01:50:41,965 INFO L130 PetriNetUnfolder]: 13/70 cut-off events. [2022-12-13 01:50:41,965 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-12-13 01:50:41,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 70 events. 13/70 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 78. Up to 15 conditions per place. [2022-12-13 01:50:41,966 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 33 transitions, 143 flow [2022-12-13 01:50:41,966 INFO L226 LiptonReduction]: Number of co-enabled transitions 130 [2022-12-13 01:50:45,782 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:50:45,783 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3827 [2022-12-13 01:50:45,783 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 153 flow [2022-12-13 01:50:45,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:45,783 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:50:45,783 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:50:45,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 01:50:45,784 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)] === [2022-12-13 01:50:45,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:50:45,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1666267141, now seen corresponding path program 1 times [2022-12-13 01:50:45,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:50:45,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051472966] [2022-12-13 01:50:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:45,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:50:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:46,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:50:46,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051472966] [2022-12-13 01:50:46,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051472966] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:50:46,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459616814] [2022-12-13 01:50:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:50:46,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:50:46,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:50:46,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:50:46,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 01:50:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:50:46,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 01:50:46,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:50:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:46,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:50:47,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:50:47,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 379 treesize of output 491 [2022-12-13 01:50:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:50:51,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459616814] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:50:51,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:50:51,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2022-12-13 01:50:51,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435648725] [2022-12-13 01:50:51,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:50:51,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 01:50:51,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:50:51,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 01:50:51,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 01:50:51,401 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 28 [2022-12-13 01:50:51,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 153 flow. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:50:51,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:50:51,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 28 [2022-12-13 01:50:51,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:50:51,999 INFO L130 PetriNetUnfolder]: 538/864 cut-off events. [2022-12-13 01:50:51,999 INFO L131 PetriNetUnfolder]: For 680/680 co-relation queries the response was YES. [2022-12-13 01:50:52,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 864 events. 538/864 cut-off events. For 680/680 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3322 event pairs, 96 based on Foata normal form. 3/860 useless extension candidates. Maximal degree in co-relation 1173. Up to 367 conditions per place. [2022-12-13 01:50:52,002 INFO L137 encePairwiseOnDemand]: 18/28 looper letters, 74 selfloop transitions, 18 changer transitions 25/117 dead transitions. [2022-12-13 01:50:52,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 117 transitions, 625 flow [2022-12-13 01:50:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 01:50:52,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 01:50:52,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 118 transitions. [2022-12-13 01:50:52,004 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42142857142857143 [2022-12-13 01:50:52,004 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 153 flow. Second operand 10 states and 118 transitions. [2022-12-13 01:50:52,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 117 transitions, 625 flow [2022-12-13 01:50:52,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 117 transitions, 616 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 01:50:52,007 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 273 flow [2022-12-13 01:50:52,008 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=273, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2022-12-13 01:50:52,008 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places. [2022-12-13 01:50:52,008 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:50:52,008 INFO L89 Accepts]: Start accepts. Operand has 48 places, 44 transitions, 273 flow [2022-12-13 01:50:52,011 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:50:52,011 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:50:52,011 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 44 transitions, 273 flow [2022-12-13 01:50:52,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 273 flow [2022-12-13 01:50:52,025 INFO L130 PetriNetUnfolder]: 20/101 cut-off events. [2022-12-13 01:50:52,026 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-12-13 01:50:52,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 101 events. 20/101 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 326 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 175. Up to 24 conditions per place. [2022-12-13 01:50:52,026 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 273 flow [2022-12-13 01:50:52,026 INFO L226 LiptonReduction]: Number of co-enabled transitions 226 [2022-12-13 01:50:52,030 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,030 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,030 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:52,031 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,753 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,753 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,753 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,753 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,753 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,753 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,754 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,754 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,754 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,754 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,754 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:57,754 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,332 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,333 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,334 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,334 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,334 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:50:59,334 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,069 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,070 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,071 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:02,071 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:03,581 INFO L241 LiptonReduction]: Total number of compositions: 4 [2022-12-13 01:51:03,582 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11574 [2022-12-13 01:51:03,582 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 300 flow [2022-12-13 01:51:03,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:03,582 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:03,582 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:03,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 01:51:03,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 01:51:03,787 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)] === [2022-12-13 01:51:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:03,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2089027606, now seen corresponding path program 1 times [2022-12-13 01:51:03,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:03,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201848454] [2022-12-13 01:51:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:03,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:03,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:03,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201848454] [2022-12-13 01:51:03,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201848454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:51:03,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:51:03,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:51:03,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433686602] [2022-12-13 01:51:03,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:51:03,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:51:03,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:51:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:51:03,965 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-13 01:51:03,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:03,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:03,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-13 01:51:03,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:04,206 INFO L130 PetriNetUnfolder]: 744/1243 cut-off events. [2022-12-13 01:51:04,206 INFO L131 PetriNetUnfolder]: For 2102/2102 co-relation queries the response was YES. [2022-12-13 01:51:04,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3761 conditions, 1243 events. 744/1243 cut-off events. For 2102/2102 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5563 event pairs, 348 based on Foata normal form. 28/1251 useless extension candidates. Maximal degree in co-relation 3325. Up to 916 conditions per place. [2022-12-13 01:51:04,212 INFO L137 encePairwiseOnDemand]: 22/32 looper letters, 56 selfloop transitions, 11 changer transitions 15/82 dead transitions. [2022-12-13 01:51:04,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 82 transitions, 584 flow [2022-12-13 01:51:04,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 01:51:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 01:51:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2022-12-13 01:51:04,213 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4375 [2022-12-13 01:51:04,213 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 300 flow. Second operand 5 states and 70 transitions. [2022-12-13 01:51:04,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 82 transitions, 584 flow [2022-12-13 01:51:04,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 82 transitions, 502 flow, removed 26 selfloop flow, removed 5 redundant places. [2022-12-13 01:51:04,219 INFO L231 Difference]: Finished difference. Result has 49 places, 50 transitions, 306 flow [2022-12-13 01:51:04,219 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=49, PETRI_TRANSITIONS=50} [2022-12-13 01:51:04,220 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2022-12-13 01:51:04,220 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:04,220 INFO L89 Accepts]: Start accepts. Operand has 49 places, 50 transitions, 306 flow [2022-12-13 01:51:04,221 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:04,221 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:04,222 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 50 transitions, 306 flow [2022-12-13 01:51:04,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 50 transitions, 306 flow [2022-12-13 01:51:04,240 INFO L130 PetriNetUnfolder]: 26/172 cut-off events. [2022-12-13 01:51:04,241 INFO L131 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2022-12-13 01:51:04,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 172 events. 26/172 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 842 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 318. Up to 19 conditions per place. [2022-12-13 01:51:04,242 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 50 transitions, 306 flow [2022-12-13 01:51:04,242 INFO L226 LiptonReduction]: Number of co-enabled transitions 282 [2022-12-13 01:51:04,577 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:51:04,578 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 358 [2022-12-13 01:51:04,578 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 308 flow [2022-12-13 01:51:04,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:04,578 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:04,578 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:04,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 01:51:04,578 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)] === [2022-12-13 01:51:04,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:04,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1339488845, now seen corresponding path program 1 times [2022-12-13 01:51:04,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:04,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482430080] [2022-12-13 01:51:04,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:04,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:04,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:04,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482430080] [2022-12-13 01:51:04,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482430080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:51:04,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:51:04,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 01:51:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268388640] [2022-12-13 01:51:04,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:51:04,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 01:51:04,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 01:51:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 01:51:04,923 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-13 01:51:04,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:04,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:04,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-13 01:51:04,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:05,237 INFO L130 PetriNetUnfolder]: 976/1648 cut-off events. [2022-12-13 01:51:05,237 INFO L131 PetriNetUnfolder]: For 1903/1903 co-relation queries the response was YES. [2022-12-13 01:51:05,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 1648 events. 976/1648 cut-off events. For 1903/1903 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7892 event pairs, 552 based on Foata normal form. 24/1669 useless extension candidates. Maximal degree in co-relation 4673. Up to 574 conditions per place. [2022-12-13 01:51:05,244 INFO L137 encePairwiseOnDemand]: 19/32 looper letters, 66 selfloop transitions, 19 changer transitions 0/85 dead transitions. [2022-12-13 01:51:05,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 634 flow [2022-12-13 01:51:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 01:51:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 01:51:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 69 transitions. [2022-12-13 01:51:05,245 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.359375 [2022-12-13 01:51:05,245 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 308 flow. Second operand 6 states and 69 transitions. [2022-12-13 01:51:05,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 634 flow [2022-12-13 01:51:05,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 85 transitions, 626 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 01:51:05,251 INFO L231 Difference]: Finished difference. Result has 53 places, 55 transitions, 382 flow [2022-12-13 01:51:05,251 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=382, PETRI_PLACES=53, PETRI_TRANSITIONS=55} [2022-12-13 01:51:05,252 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2022-12-13 01:51:05,252 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:05,252 INFO L89 Accepts]: Start accepts. Operand has 53 places, 55 transitions, 382 flow [2022-12-13 01:51:05,253 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:05,253 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:05,253 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 55 transitions, 382 flow [2022-12-13 01:51:05,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 55 transitions, 382 flow [2022-12-13 01:51:05,275 INFO L130 PetriNetUnfolder]: 30/218 cut-off events. [2022-12-13 01:51:05,275 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-12-13 01:51:05,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 218 events. 30/218 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1208 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 402. Up to 25 conditions per place. [2022-12-13 01:51:05,277 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 55 transitions, 382 flow [2022-12-13 01:51:05,277 INFO L226 LiptonReduction]: Number of co-enabled transitions 300 [2022-12-13 01:51:05,277 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:51:05,278 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 26 [2022-12-13 01:51:05,278 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 55 transitions, 382 flow [2022-12-13 01:51:05,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:05,278 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:05,278 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:05,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 01:51:05,278 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)] === [2022-12-13 01:51:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:05,278 INFO L85 PathProgramCache]: Analyzing trace with hash 477829846, now seen corresponding path program 1 times [2022-12-13 01:51:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219994059] [2022-12-13 01:51:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:05,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:05,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219994059] [2022-12-13 01:51:05,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219994059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:51:05,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:51:05,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 01:51:05,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528118598] [2022-12-13 01:51:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:51:05,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 01:51:05,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:05,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 01:51:05,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 01:51:05,454 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-13 01:51:05,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 55 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:05,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:05,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-13 01:51:05,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:05,678 INFO L130 PetriNetUnfolder]: 852/1464 cut-off events. [2022-12-13 01:51:05,679 INFO L131 PetriNetUnfolder]: For 1760/1760 co-relation queries the response was YES. [2022-12-13 01:51:05,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4141 conditions, 1464 events. 852/1464 cut-off events. For 1760/1760 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7085 event pairs, 382 based on Foata normal form. 28/1491 useless extension candidates. Maximal degree in co-relation 3829. Up to 812 conditions per place. [2022-12-13 01:51:05,684 INFO L137 encePairwiseOnDemand]: 27/32 looper letters, 45 selfloop transitions, 9 changer transitions 7/61 dead transitions. [2022-12-13 01:51:05,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 492 flow [2022-12-13 01:51:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 01:51:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 01:51:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2022-12-13 01:51:05,685 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4375 [2022-12-13 01:51:05,685 INFO L175 Difference]: Start difference. First operand has 53 places, 55 transitions, 382 flow. Second operand 3 states and 42 transitions. [2022-12-13 01:51:05,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 492 flow [2022-12-13 01:51:05,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 61 transitions, 465 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 01:51:05,690 INFO L231 Difference]: Finished difference. Result has 52 places, 52 transitions, 340 flow [2022-12-13 01:51:05,691 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=52, PETRI_TRANSITIONS=52} [2022-12-13 01:51:05,691 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2022-12-13 01:51:05,691 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:05,691 INFO L89 Accepts]: Start accepts. Operand has 52 places, 52 transitions, 340 flow [2022-12-13 01:51:05,692 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:05,692 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:05,692 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 52 transitions, 340 flow [2022-12-13 01:51:05,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 340 flow [2022-12-13 01:51:05,711 INFO L130 PetriNetUnfolder]: 26/206 cut-off events. [2022-12-13 01:51:05,712 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-12-13 01:51:05,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 206 events. 26/206 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1151 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 365. Up to 21 conditions per place. [2022-12-13 01:51:05,713 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 52 transitions, 340 flow [2022-12-13 01:51:05,713 INFO L226 LiptonReduction]: Number of co-enabled transitions 274 [2022-12-13 01:51:05,713 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:51:05,714 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-13 01:51:05,714 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 52 transitions, 340 flow [2022-12-13 01:51:05,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:05,714 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:05,714 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:05,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 01:51:05,714 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:51:05,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1484358532, now seen corresponding path program 1 times [2022-12-13 01:51:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:05,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380233127] [2022-12-13 01:51:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:05,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:06,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:06,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380233127] [2022-12-13 01:51:06,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380233127] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:51:06,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679850855] [2022-12-13 01:51:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:06,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:06,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:51:06,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:51:06,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 01:51:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:06,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 01:51:06,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:51:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:06,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:51:08,387 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:51:08,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 446 treesize of output 625 [2022-12-13 01:51:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:10,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679850855] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:51:10,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:51:10,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 9 [2022-12-13 01:51:10,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84116107] [2022-12-13 01:51:10,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:51:10,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 01:51:10,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:10,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 01:51:10,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 01:51:10,758 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 31 [2022-12-13 01:51:10,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 52 transitions, 340 flow. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:10,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:10,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 31 [2022-12-13 01:51:10,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:11,562 INFO L130 PetriNetUnfolder]: 1298/2229 cut-off events. [2022-12-13 01:51:11,562 INFO L131 PetriNetUnfolder]: For 2725/2725 co-relation queries the response was YES. [2022-12-13 01:51:11,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6316 conditions, 2229 events. 1298/2229 cut-off events. For 2725/2725 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11888 event pairs, 444 based on Foata normal form. 10/2238 useless extension candidates. Maximal degree in co-relation 6013. Up to 650 conditions per place. [2022-12-13 01:51:11,570 INFO L137 encePairwiseOnDemand]: 20/31 looper letters, 71 selfloop transitions, 34 changer transitions 28/133 dead transitions. [2022-12-13 01:51:11,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 133 transitions, 908 flow [2022-12-13 01:51:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 01:51:11,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 01:51:11,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 108 transitions. [2022-12-13 01:51:11,571 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3870967741935484 [2022-12-13 01:51:11,571 INFO L175 Difference]: Start difference. First operand has 52 places, 52 transitions, 340 flow. Second operand 9 states and 108 transitions. [2022-12-13 01:51:11,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 133 transitions, 908 flow [2022-12-13 01:51:11,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 133 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 01:51:11,577 INFO L231 Difference]: Finished difference. Result has 60 places, 65 transitions, 528 flow [2022-12-13 01:51:11,577 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=528, PETRI_PLACES=60, PETRI_TRANSITIONS=65} [2022-12-13 01:51:11,577 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2022-12-13 01:51:11,577 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:11,577 INFO L89 Accepts]: Start accepts. Operand has 60 places, 65 transitions, 528 flow [2022-12-13 01:51:11,578 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:11,578 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:11,578 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 65 transitions, 528 flow [2022-12-13 01:51:11,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 65 transitions, 528 flow [2022-12-13 01:51:11,603 INFO L130 PetriNetUnfolder]: 37/306 cut-off events. [2022-12-13 01:51:11,603 INFO L131 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2022-12-13 01:51:11,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 306 events. 37/306 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2022 event pairs, 0 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 584. Up to 32 conditions per place. [2022-12-13 01:51:11,605 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 65 transitions, 528 flow [2022-12-13 01:51:11,605 INFO L226 LiptonReduction]: Number of co-enabled transitions 412 [2022-12-13 01:51:11,606 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:11,607 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:14,458 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:51:14,459 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2882 [2022-12-13 01:51:14,459 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 65 transitions, 532 flow [2022-12-13 01:51:14,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:14,459 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:14,459 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:14,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 01:51:14,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:14,668 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:51:14,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:14,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1612707328, now seen corresponding path program 1 times [2022-12-13 01:51:14,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:14,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599167207] [2022-12-13 01:51:14,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:14,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:14,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:14,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599167207] [2022-12-13 01:51:14,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599167207] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:51:14,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086587102] [2022-12-13 01:51:14,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:14,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:14,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:51:14,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:51:14,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 01:51:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:15,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 01:51:15,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:51:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:15,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:51:16,236 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:51:16,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 557 treesize of output 648 [2022-12-13 01:51:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:18,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086587102] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:51:18,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:51:18,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-12-13 01:51:18,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372704048] [2022-12-13 01:51:18,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:51:18,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 01:51:18,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:18,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 01:51:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 01:51:18,276 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 31 [2022-12-13 01:51:18,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 65 transitions, 532 flow. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:18,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:18,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 31 [2022-12-13 01:51:18,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:19,916 INFO L130 PetriNetUnfolder]: 2082/3601 cut-off events. [2022-12-13 01:51:19,916 INFO L131 PetriNetUnfolder]: For 6955/6955 co-relation queries the response was YES. [2022-12-13 01:51:19,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10731 conditions, 3601 events. 2082/3601 cut-off events. For 6955/6955 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 21360 event pairs, 444 based on Foata normal form. 252/3852 useless extension candidates. Maximal degree in co-relation 10124. Up to 644 conditions per place. [2022-12-13 01:51:19,928 INFO L137 encePairwiseOnDemand]: 17/31 looper letters, 127 selfloop transitions, 65 changer transitions 40/232 dead transitions. [2022-12-13 01:51:19,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 232 transitions, 1729 flow [2022-12-13 01:51:19,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 01:51:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 01:51:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 205 transitions. [2022-12-13 01:51:19,930 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3673835125448029 [2022-12-13 01:51:19,930 INFO L175 Difference]: Start difference. First operand has 60 places, 65 transitions, 532 flow. Second operand 18 states and 205 transitions. [2022-12-13 01:51:19,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 232 transitions, 1729 flow [2022-12-13 01:51:19,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 232 transitions, 1661 flow, removed 28 selfloop flow, removed 3 redundant places. [2022-12-13 01:51:19,948 INFO L231 Difference]: Finished difference. Result has 81 places, 92 transitions, 966 flow [2022-12-13 01:51:19,948 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=966, PETRI_PLACES=81, PETRI_TRANSITIONS=92} [2022-12-13 01:51:19,949 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 52 predicate places. [2022-12-13 01:51:19,949 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:19,949 INFO L89 Accepts]: Start accepts. Operand has 81 places, 92 transitions, 966 flow [2022-12-13 01:51:19,950 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:19,950 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:19,950 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 92 transitions, 966 flow [2022-12-13 01:51:19,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 92 transitions, 966 flow [2022-12-13 01:51:19,995 INFO L130 PetriNetUnfolder]: 46/435 cut-off events. [2022-12-13 01:51:19,995 INFO L131 PetriNetUnfolder]: For 476/476 co-relation queries the response was YES. [2022-12-13 01:51:19,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 435 events. 46/435 cut-off events. For 476/476 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3235 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 962. Up to 47 conditions per place. [2022-12-13 01:51:19,998 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 92 transitions, 966 flow [2022-12-13 01:51:19,998 INFO L226 LiptonReduction]: Number of co-enabled transitions 554 [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,430 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,431 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:20,431 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:51:34,086 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 01:51:34,087 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14138 [2022-12-13 01:51:34,087 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 91 transitions, 984 flow [2022-12-13 01:51:34,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:34,087 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:34,087 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:34,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 01:51:34,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:34,293 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:51:34,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash 255994197, now seen corresponding path program 1 times [2022-12-13 01:51:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:34,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837331524] [2022-12-13 01:51:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:34,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837331524] [2022-12-13 01:51:34,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837331524] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:51:34,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874083777] [2022-12-13 01:51:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:34,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:34,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:51:34,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:51:34,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 01:51:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:35,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 01:51:35,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:51:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:35,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:51:37,277 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:51:37,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 434 treesize of output 636 [2022-12-13 01:51:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:51:39,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874083777] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:51:39,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:51:39,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2022-12-13 01:51:39,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235671083] [2022-12-13 01:51:39,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:51:39,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 01:51:39,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 01:51:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 01:51:39,718 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 35 [2022-12-13 01:51:39,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 91 transitions, 984 flow. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 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) [2022-12-13 01:51:39,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:39,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 35 [2022-12-13 01:51:39,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:40,598 INFO L130 PetriNetUnfolder]: 2140/3688 cut-off events. [2022-12-13 01:51:40,599 INFO L131 PetriNetUnfolder]: For 9908/9908 co-relation queries the response was YES. [2022-12-13 01:51:40,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12126 conditions, 3688 events. 2140/3688 cut-off events. For 9908/9908 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 21482 event pairs, 654 based on Foata normal form. 24/3693 useless extension candidates. Maximal degree in co-relation 11534. Up to 1012 conditions per place. [2022-12-13 01:51:40,614 INFO L137 encePairwiseOnDemand]: 18/35 looper letters, 85 selfloop transitions, 53 changer transitions 35/173 dead transitions. [2022-12-13 01:51:40,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 173 transitions, 1602 flow [2022-12-13 01:51:40,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 01:51:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 01:51:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 129 transitions. [2022-12-13 01:51:40,615 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36857142857142855 [2022-12-13 01:51:40,616 INFO L175 Difference]: Start difference. First operand has 80 places, 91 transitions, 984 flow. Second operand 10 states and 129 transitions. [2022-12-13 01:51:40,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 173 transitions, 1602 flow [2022-12-13 01:51:40,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 173 transitions, 1496 flow, removed 38 selfloop flow, removed 6 redundant places. [2022-12-13 01:51:40,642 INFO L231 Difference]: Finished difference. Result has 82 places, 90 transitions, 993 flow [2022-12-13 01:51:40,642 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=993, PETRI_PLACES=82, PETRI_TRANSITIONS=90} [2022-12-13 01:51:40,643 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 53 predicate places. [2022-12-13 01:51:40,643 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:40,643 INFO L89 Accepts]: Start accepts. Operand has 82 places, 90 transitions, 993 flow [2022-12-13 01:51:40,643 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:40,643 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:40,643 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 90 transitions, 993 flow [2022-12-13 01:51:40,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 90 transitions, 993 flow [2022-12-13 01:51:40,682 INFO L130 PetriNetUnfolder]: 47/434 cut-off events. [2022-12-13 01:51:40,683 INFO L131 PetriNetUnfolder]: For 520/520 co-relation queries the response was YES. [2022-12-13 01:51:40,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 434 events. 47/434 cut-off events. For 520/520 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3185 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 987. Up to 52 conditions per place. [2022-12-13 01:51:40,685 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 90 transitions, 993 flow [2022-12-13 01:51:40,685 INFO L226 LiptonReduction]: Number of co-enabled transitions 574 [2022-12-13 01:51:40,686 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:51:40,686 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 43 [2022-12-13 01:51:40,686 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 90 transitions, 993 flow [2022-12-13 01:51:40,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 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) [2022-12-13 01:51:40,686 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:40,686 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:40,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 01:51:40,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 01:51:40,887 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:51:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash 327003552, now seen corresponding path program 1 times [2022-12-13 01:51:40,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219587802] [2022-12-13 01:51:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:40,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:41,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:41,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219587802] [2022-12-13 01:51:41,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219587802] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:51:41,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529746993] [2022-12-13 01:51:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:41,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:41,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:51:41,063 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:51:41,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 01:51:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:41,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 01:51:41,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:51:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:51:41,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 01:51:41,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529746993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:51:41,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 01:51:41,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-12-13 01:51:41,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642303357] [2022-12-13 01:51:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:51:41,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 01:51:41,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:41,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 01:51:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:51:41,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-13 01:51:41,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 90 transitions, 993 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:41,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:41,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-13 01:51:41,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:41,715 INFO L130 PetriNetUnfolder]: 2166/3742 cut-off events. [2022-12-13 01:51:41,715 INFO L131 PetriNetUnfolder]: For 10268/10268 co-relation queries the response was YES. [2022-12-13 01:51:41,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12309 conditions, 3742 events. 2166/3742 cut-off events. For 10268/10268 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 22208 event pairs, 1770 based on Foata normal form. 12/3736 useless extension candidates. Maximal degree in co-relation 11679. Up to 3522 conditions per place. [2022-12-13 01:51:41,731 INFO L137 encePairwiseOnDemand]: 25/32 looper letters, 81 selfloop transitions, 6 changer transitions 17/104 dead transitions. [2022-12-13 01:51:41,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 104 transitions, 1235 flow [2022-12-13 01:51:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 01:51:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 01:51:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2022-12-13 01:51:41,733 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2022-12-13 01:51:41,733 INFO L175 Difference]: Start difference. First operand has 81 places, 90 transitions, 993 flow. Second operand 3 states and 49 transitions. [2022-12-13 01:51:41,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 104 transitions, 1235 flow [2022-12-13 01:51:41,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 104 transitions, 1172 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-12-13 01:51:41,758 INFO L231 Difference]: Finished difference. Result has 78 places, 87 transitions, 911 flow [2022-12-13 01:51:41,758 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=78, PETRI_TRANSITIONS=87} [2022-12-13 01:51:41,759 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 49 predicate places. [2022-12-13 01:51:41,759 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:41,759 INFO L89 Accepts]: Start accepts. Operand has 78 places, 87 transitions, 911 flow [2022-12-13 01:51:41,760 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:41,760 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:41,760 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 87 transitions, 911 flow [2022-12-13 01:51:41,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 87 transitions, 911 flow [2022-12-13 01:51:41,800 INFO L130 PetriNetUnfolder]: 46/415 cut-off events. [2022-12-13 01:51:41,800 INFO L131 PetriNetUnfolder]: For 465/465 co-relation queries the response was YES. [2022-12-13 01:51:41,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 415 events. 46/415 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3013 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 936. Up to 51 conditions per place. [2022-12-13 01:51:41,802 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 87 transitions, 911 flow [2022-12-13 01:51:41,802 INFO L226 LiptonReduction]: Number of co-enabled transitions 554 [2022-12-13 01:51:41,803 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:51:41,803 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 44 [2022-12-13 01:51:41,804 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 87 transitions, 911 flow [2022-12-13 01:51:41,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:41,804 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:41,804 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:41,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 01:51:42,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:42,009 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:51:42,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -337670667, now seen corresponding path program 1 times [2022-12-13 01:51:42,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633146044] [2022-12-13 01:51:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:42,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:42,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633146044] [2022-12-13 01:51:42,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633146044] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:51:42,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911834013] [2022-12-13 01:51:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:42,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:42,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:51:42,228 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:51:42,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 01:51:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:42,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 01:51:42,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:51:42,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:42,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:51:42,761 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:51:42,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 589 treesize of output 624 [2022-12-13 01:51:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:43,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911834013] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:51:43,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:51:43,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 01:51:43,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165911460] [2022-12-13 01:51:43,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:51:43,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 01:51:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:43,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 01:51:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 01:51:43,277 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 31 [2022-12-13 01:51:43,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 87 transitions, 911 flow. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:43,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:43,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 31 [2022-12-13 01:51:43,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:51:43,731 INFO L130 PetriNetUnfolder]: 1983/3459 cut-off events. [2022-12-13 01:51:43,731 INFO L131 PetriNetUnfolder]: For 8676/8676 co-relation queries the response was YES. [2022-12-13 01:51:43,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10893 conditions, 3459 events. 1983/3459 cut-off events. For 8676/8676 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20169 event pairs, 991 based on Foata normal form. 72/3514 useless extension candidates. Maximal degree in co-relation 10261. Up to 1655 conditions per place. [2022-12-13 01:51:43,744 INFO L137 encePairwiseOnDemand]: 23/31 looper letters, 59 selfloop transitions, 10 changer transitions 30/99 dead transitions. [2022-12-13 01:51:43,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 99 transitions, 1063 flow [2022-12-13 01:51:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:51:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:51:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2022-12-13 01:51:43,746 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41935483870967744 [2022-12-13 01:51:43,746 INFO L175 Difference]: Start difference. First operand has 78 places, 87 transitions, 911 flow. Second operand 4 states and 52 transitions. [2022-12-13 01:51:43,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 99 transitions, 1063 flow [2022-12-13 01:51:43,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 99 transitions, 1045 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 01:51:43,762 INFO L231 Difference]: Finished difference. Result has 78 places, 66 transitions, 620 flow [2022-12-13 01:51:43,763 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=620, PETRI_PLACES=78, PETRI_TRANSITIONS=66} [2022-12-13 01:51:43,763 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 49 predicate places. [2022-12-13 01:51:43,763 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:51:43,763 INFO L89 Accepts]: Start accepts. Operand has 78 places, 66 transitions, 620 flow [2022-12-13 01:51:43,764 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:51:43,764 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:51:43,764 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 66 transitions, 620 flow [2022-12-13 01:51:43,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 66 transitions, 620 flow [2022-12-13 01:51:43,796 INFO L130 PetriNetUnfolder]: 35/270 cut-off events. [2022-12-13 01:51:43,796 INFO L131 PetriNetUnfolder]: For 369/369 co-relation queries the response was YES. [2022-12-13 01:51:43,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 270 events. 35/270 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1581 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 615. Up to 46 conditions per place. [2022-12-13 01:51:43,797 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 66 transitions, 620 flow [2022-12-13 01:51:43,797 INFO L226 LiptonReduction]: Number of co-enabled transitions 400 [2022-12-13 01:51:44,103 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:51:44,104 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 341 [2022-12-13 01:51:44,104 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 65 transitions, 618 flow [2022-12-13 01:51:44,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:44,104 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:51:44,104 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:51:44,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 01:51:44,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:44,305 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:51:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:51:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash -632401889, now seen corresponding path program 1 times [2022-12-13 01:51:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:51:44,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701699583] [2022-12-13 01:51:44,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:44,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:51:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:44,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:51:44,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701699583] [2022-12-13 01:51:44,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701699583] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:51:44,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947416823] [2022-12-13 01:51:44,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:51:44,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:51:44,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:51:44,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:51:44,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 01:51:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:51:45,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 01:51:45,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:51:45,116 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-12-13 01:51:45,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-12-13 01:51:45,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-13 01:51:45,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-13 01:51:45,146 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:51:45,147 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2022-12-13 01:51:45,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-12-13 01:51:45,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-13 01:51:45,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 01:51:45,237 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-13 01:51:45,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 48 [2022-12-13 01:51:45,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-13 01:51:45,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 01:51:45,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 01:51:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:45,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:51:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:51:59,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947416823] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:51:59,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:51:59,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 16 [2022-12-13 01:51:59,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580547786] [2022-12-13 01:51:59,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:51:59,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 01:51:59,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:51:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 01:51:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=226, Unknown=9, NotChecked=0, Total=306 [2022-12-13 01:51:59,719 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 31 [2022-12-13 01:51:59,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 65 transitions, 618 flow. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:51:59,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:51:59,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 31 [2022-12-13 01:51:59,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:52:26,456 WARN L233 SmtUtils]: Spent 26.49s on a formula simplification. DAG size of input: 244 DAG size of output: 219 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 01:52:33,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:35,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:37,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:39,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:41,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:43,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:45,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:48,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:50,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:52,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:54,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:52:54,722 INFO L130 PetriNetUnfolder]: 2247/3896 cut-off events. [2022-12-13 01:52:54,722 INFO L131 PetriNetUnfolder]: For 9284/9284 co-relation queries the response was YES. [2022-12-13 01:52:54,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12348 conditions, 3896 events. 2247/3896 cut-off events. For 9284/9284 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 23640 event pairs, 509 based on Foata normal form. 4/3898 useless extension candidates. Maximal degree in co-relation 12249. Up to 1901 conditions per place. [2022-12-13 01:52:54,736 INFO L137 encePairwiseOnDemand]: 14/31 looper letters, 97 selfloop transitions, 43 changer transitions 39/179 dead transitions. [2022-12-13 01:52:54,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 179 transitions, 1521 flow [2022-12-13 01:52:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 01:52:54,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 01:52:54,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 137 transitions. [2022-12-13 01:52:54,738 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.2762096774193548 [2022-12-13 01:52:54,738 INFO L175 Difference]: Start difference. First operand has 73 places, 65 transitions, 618 flow. Second operand 16 states and 137 transitions. [2022-12-13 01:52:54,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 179 transitions, 1521 flow [2022-12-13 01:52:54,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 179 transitions, 1419 flow, removed 24 selfloop flow, removed 7 redundant places. [2022-12-13 01:52:54,762 INFO L231 Difference]: Finished difference. Result has 88 places, 96 transitions, 1030 flow [2022-12-13 01:52:54,762 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1030, PETRI_PLACES=88, PETRI_TRANSITIONS=96} [2022-12-13 01:52:54,762 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 59 predicate places. [2022-12-13 01:52:54,762 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:52:54,762 INFO L89 Accepts]: Start accepts. Operand has 88 places, 96 transitions, 1030 flow [2022-12-13 01:52:54,763 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:52:54,763 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:52:54,763 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 96 transitions, 1030 flow [2022-12-13 01:52:54,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 96 transitions, 1030 flow [2022-12-13 01:52:54,809 INFO L130 PetriNetUnfolder]: 46/454 cut-off events. [2022-12-13 01:52:54,809 INFO L131 PetriNetUnfolder]: For 646/646 co-relation queries the response was YES. [2022-12-13 01:52:54,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136 conditions, 454 events. 46/454 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3473 event pairs, 0 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 1024. Up to 61 conditions per place. [2022-12-13 01:52:54,812 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 96 transitions, 1030 flow [2022-12-13 01:52:54,812 INFO L226 LiptonReduction]: Number of co-enabled transitions 640 [2022-12-13 01:53:01,532 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:53:01,533 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:53:01,533 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:53:01,533 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:53:01,533 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:53:01,533 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:53:02,196 INFO L241 LiptonReduction]: Total number of compositions: 2 [2022-12-13 01:53:02,197 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7435 [2022-12-13 01:53:02,197 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 96 transitions, 1059 flow [2022-12-13 01:53:02,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:53:02,197 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:53:02,197 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:53:02,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 01:53:02,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 01:53:02,402 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:53:02,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:53:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2075479290, now seen corresponding path program 1 times [2022-12-13 01:53:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:53:02,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972485940] [2022-12-13 01:53:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:53:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:53:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:53:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:53:03,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:53:03,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972485940] [2022-12-13 01:53:03,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972485940] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:53:03,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216085719] [2022-12-13 01:53:03,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:53:03,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:53:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:53:03,166 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:53:03,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 01:53:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:53:03,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 01:53:03,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:53:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:53:03,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:53:28,773 WARN L233 SmtUtils]: Spent 22.85s on a formula simplification. DAG size of input: 104 DAG size of output: 103 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 01:53:30,493 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:53:30,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 762 treesize of output 1864 [2022-12-13 01:54:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:54:57,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216085719] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:54:57,975 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:54:57,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-12-13 01:54:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730794042] [2022-12-13 01:54:57,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:54:57,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 01:54:57,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:54:57,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 01:54:57,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-13 01:54:57,976 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 34 [2022-12-13 01:54:57,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 96 transitions, 1059 flow. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:54:57,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:54:57,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 34 [2022-12-13 01:54:57,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:55:00,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:55:02,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-12-13 01:55:02,917 INFO L130 PetriNetUnfolder]: 2071/3660 cut-off events. [2022-12-13 01:55:02,917 INFO L131 PetriNetUnfolder]: For 9862/9862 co-relation queries the response was YES. [2022-12-13 01:55:02,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11927 conditions, 3660 events. 2071/3660 cut-off events. For 9862/9862 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 22572 event pairs, 511 based on Foata normal form. 56/3706 useless extension candidates. Maximal degree in co-relation 11096. Up to 815 conditions per place. [2022-12-13 01:55:02,930 INFO L137 encePairwiseOnDemand]: 22/34 looper letters, 84 selfloop transitions, 50 changer transitions 40/174 dead transitions. [2022-12-13 01:55:02,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 174 transitions, 1580 flow [2022-12-13 01:55:02,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 01:55:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 01:55:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 126 transitions. [2022-12-13 01:55:02,940 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37058823529411766 [2022-12-13 01:55:02,940 INFO L175 Difference]: Start difference. First operand has 88 places, 96 transitions, 1059 flow. Second operand 10 states and 126 transitions. [2022-12-13 01:55:02,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 174 transitions, 1580 flow [2022-12-13 01:55:02,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 174 transitions, 1465 flow, removed 23 selfloop flow, removed 5 redundant places. [2022-12-13 01:55:02,966 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 980 flow [2022-12-13 01:55:02,967 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=980, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2022-12-13 01:55:02,968 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 64 predicate places. [2022-12-13 01:55:02,968 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:55:02,968 INFO L89 Accepts]: Start accepts. Operand has 93 places, 87 transitions, 980 flow [2022-12-13 01:55:02,969 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:55:02,969 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:55:02,969 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 87 transitions, 980 flow [2022-12-13 01:55:02,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 87 transitions, 980 flow [2022-12-13 01:55:03,012 INFO L130 PetriNetUnfolder]: 35/423 cut-off events. [2022-12-13 01:55:03,012 INFO L131 PetriNetUnfolder]: For 640/640 co-relation queries the response was YES. [2022-12-13 01:55:03,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 423 events. 35/423 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3262 event pairs, 0 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 939. Up to 47 conditions per place. [2022-12-13 01:55:03,014 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 87 transitions, 980 flow [2022-12-13 01:55:03,014 INFO L226 LiptonReduction]: Number of co-enabled transitions 572 [2022-12-13 01:55:03,015 WARN L322 ript$VariableManager]: TermVariable LBE577 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE533 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE587 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE542 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE111 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE537 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE44 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE99 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE76 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE21 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:03,016 WARN L322 ript$VariableManager]: TermVariable LBE590 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:55:04,745 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:55:04,746 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1778 [2022-12-13 01:55:04,746 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 984 flow [2022-12-13 01:55:04,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:55:04,746 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:55:04,746 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:55:04,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 01:55:04,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 01:55:04,951 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:55:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:55:04,952 INFO L85 PathProgramCache]: Analyzing trace with hash -436449212, now seen corresponding path program 1 times [2022-12-13 01:55:04,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:55:04,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641836894] [2022-12-13 01:55:04,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:55:04,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:55:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:55:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:55:05,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:55:05,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641836894] [2022-12-13 01:55:05,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641836894] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:55:05,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476314896] [2022-12-13 01:55:05,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:55:05,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:55:05,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:55:05,174 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:55:05,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 01:55:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:55:05,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 01:55:05,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:55:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:55:05,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:55:05,958 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:55:05,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 274 treesize of output 284 [2022-12-13 01:55:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:55:06,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476314896] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:55:06,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:55:06,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 01:55:06,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881280264] [2022-12-13 01:55:06,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:55:06,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 01:55:06,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:55:06,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 01:55:06,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 01:55:06,146 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 34 [2022-12-13 01:55:06,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 984 flow. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:55:06,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:55:06,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 34 [2022-12-13 01:55:06,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:55:06,759 INFO L130 PetriNetUnfolder]: 2323/4063 cut-off events. [2022-12-13 01:55:06,760 INFO L131 PetriNetUnfolder]: For 12416/12416 co-relation queries the response was YES. [2022-12-13 01:55:06,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13787 conditions, 4063 events. 2323/4063 cut-off events. For 12416/12416 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 24917 event pairs, 1327 based on Foata normal form. 12/4058 useless extension candidates. Maximal degree in co-relation 13615. Up to 2303 conditions per place. [2022-12-13 01:55:06,775 INFO L137 encePairwiseOnDemand]: 28/34 looper letters, 109 selfloop transitions, 13 changer transitions 15/137 dead transitions. [2022-12-13 01:55:06,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 1520 flow [2022-12-13 01:55:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 01:55:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 01:55:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2022-12-13 01:55:06,788 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4470588235294118 [2022-12-13 01:55:06,788 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 984 flow. Second operand 5 states and 76 transitions. [2022-12-13 01:55:06,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 137 transitions, 1520 flow [2022-12-13 01:55:06,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 1394 flow, removed 32 selfloop flow, removed 5 redundant places. [2022-12-13 01:55:06,819 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 885 flow [2022-12-13 01:55:06,820 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=885, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2022-12-13 01:55:06,821 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 62 predicate places. [2022-12-13 01:55:06,821 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:55:06,821 INFO L89 Accepts]: Start accepts. Operand has 91 places, 84 transitions, 885 flow [2022-12-13 01:55:06,821 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:55:06,821 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:55:06,821 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 84 transitions, 885 flow [2022-12-13 01:55:06,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 885 flow [2022-12-13 01:55:06,874 INFO L130 PetriNetUnfolder]: 41/441 cut-off events. [2022-12-13 01:55:06,874 INFO L131 PetriNetUnfolder]: For 657/657 co-relation queries the response was YES. [2022-12-13 01:55:06,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 441 events. 41/441 cut-off events. For 657/657 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3362 event pairs, 0 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 953. Up to 64 conditions per place. [2022-12-13 01:55:06,877 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 84 transitions, 885 flow [2022-12-13 01:55:06,877 INFO L226 LiptonReduction]: Number of co-enabled transitions 568 [2022-12-13 01:55:06,877 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:55:06,877 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 56 [2022-12-13 01:55:06,878 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 885 flow [2022-12-13 01:55:06,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:55:06,878 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:55:06,878 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:55:06,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 01:55:07,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 01:55:07,083 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:55:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:55:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash 843842431, now seen corresponding path program 1 times [2022-12-13 01:55:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:55:07,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402282163] [2022-12-13 01:55:07,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:55:07,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:55:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:55:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:55:08,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:55:08,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402282163] [2022-12-13 01:55:08,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402282163] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:55:08,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488998227] [2022-12-13 01:55:08,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:55:08,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:55:08,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:55:08,099 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:55:08,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 01:55:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:55:08,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 01:55:08,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:55:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:55:09,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:55:09,881 INFO L321 Elim1Store]: treesize reduction 126, result has 74.0 percent of original size [2022-12-13 01:55:09,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1157 treesize of output 1370 [2022-12-13 01:57:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 01:57:04,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488998227] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:57:04,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:57:04,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 16 [2022-12-13 01:57:04,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108187400] [2022-12-13 01:57:04,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:57:04,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 01:57:04,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:57:04,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 01:57:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-12-13 01:57:04,578 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 32 [2022-12-13 01:57:04,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 885 flow. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:57:04,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:57:04,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 32 [2022-12-13 01:57:04,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:57:06,240 INFO L130 PetriNetUnfolder]: 2496/4354 cut-off events. [2022-12-13 01:57:06,240 INFO L131 PetriNetUnfolder]: For 11767/11767 co-relation queries the response was YES. [2022-12-13 01:57:06,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13998 conditions, 4354 events. 2496/4354 cut-off events. For 11767/11767 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 27188 event pairs, 495 based on Foata normal form. 8/4342 useless extension candidates. Maximal degree in co-relation 12621. Up to 798 conditions per place. [2022-12-13 01:57:06,254 INFO L137 encePairwiseOnDemand]: 15/32 looper letters, 81 selfloop transitions, 71 changer transitions 62/214 dead transitions. [2022-12-13 01:57:06,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 214 transitions, 1732 flow [2022-12-13 01:57:06,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 01:57:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 01:57:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 170 transitions. [2022-12-13 01:57:06,255 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.25297619047619047 [2022-12-13 01:57:06,255 INFO L175 Difference]: Start difference. First operand has 89 places, 84 transitions, 885 flow. Second operand 21 states and 170 transitions. [2022-12-13 01:57:06,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 214 transitions, 1732 flow [2022-12-13 01:57:06,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 214 transitions, 1695 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-12-13 01:57:06,284 INFO L231 Difference]: Finished difference. Result has 111 places, 105 transitions, 1197 flow [2022-12-13 01:57:06,284 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1197, PETRI_PLACES=111, PETRI_TRANSITIONS=105} [2022-12-13 01:57:06,285 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 82 predicate places. [2022-12-13 01:57:06,285 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:57:06,285 INFO L89 Accepts]: Start accepts. Operand has 111 places, 105 transitions, 1197 flow [2022-12-13 01:57:06,285 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:57:06,286 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:57:06,286 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 105 transitions, 1197 flow [2022-12-13 01:57:06,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 105 transitions, 1197 flow [2022-12-13 01:57:06,336 INFO L130 PetriNetUnfolder]: 51/506 cut-off events. [2022-12-13 01:57:06,336 INFO L131 PetriNetUnfolder]: For 860/860 co-relation queries the response was YES. [2022-12-13 01:57:06,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 506 events. 51/506 cut-off events. For 860/860 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4012 event pairs, 0 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 1187. Up to 57 conditions per place. [2022-12-13 01:57:06,339 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 105 transitions, 1197 flow [2022-12-13 01:57:06,339 INFO L226 LiptonReduction]: Number of co-enabled transitions 638 [2022-12-13 01:57:23,008 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 01:57:23,009 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 16724 [2022-12-13 01:57:23,009 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 1259 flow [2022-12-13 01:57:23,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:57:23,009 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:57:23,009 INFO L214 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:57:23,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 01:57:23,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:57:23,215 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:57:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:57:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash -222209733, now seen corresponding path program 1 times [2022-12-13 01:57:23,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:57:23,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909066273] [2022-12-13 01:57:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:57:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:57:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:57:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:57:23,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:57:23,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909066273] [2022-12-13 01:57:23,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909066273] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:57:23,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799554664] [2022-12-13 01:57:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:57:23,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:57:23,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:57:23,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:57:23,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 01:57:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:57:23,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 01:57:23,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:57:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:57:23,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:57:24,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 01:57:24,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 274 treesize of output 284 [2022-12-13 01:57:24,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:57:24,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799554664] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 01:57:24,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 01:57:24,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-13 01:57:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702965305] [2022-12-13 01:57:24,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 01:57:24,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 01:57:24,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:57:24,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 01:57:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 01:57:24,459 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 38 [2022-12-13 01:57:24,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 1259 flow. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:57:24,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:57:24,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 38 [2022-12-13 01:57:24,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:57:25,212 INFO L130 PetriNetUnfolder]: 2178/3890 cut-off events. [2022-12-13 01:57:25,212 INFO L131 PetriNetUnfolder]: For 13181/13181 co-relation queries the response was YES. [2022-12-13 01:57:25,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12561 conditions, 3890 events. 2178/3890 cut-off events. For 13181/13181 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 24635 event pairs, 1483 based on Foata normal form. 48/3915 useless extension candidates. Maximal degree in co-relation 11642. Up to 2759 conditions per place. [2022-12-13 01:57:25,224 INFO L137 encePairwiseOnDemand]: 19/38 looper letters, 72 selfloop transitions, 13 changer transitions 72/157 dead transitions. [2022-12-13 01:57:25,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 157 transitions, 1703 flow [2022-12-13 01:57:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 01:57:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 01:57:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 92 transitions. [2022-12-13 01:57:25,225 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3458646616541353 [2022-12-13 01:57:25,225 INFO L175 Difference]: Start difference. First operand has 111 places, 105 transitions, 1259 flow. Second operand 7 states and 92 transitions. [2022-12-13 01:57:25,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 157 transitions, 1703 flow [2022-12-13 01:57:25,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 1632 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-12-13 01:57:25,257 INFO L231 Difference]: Finished difference. Result has 116 places, 85 transitions, 895 flow [2022-12-13 01:57:25,257 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=895, PETRI_PLACES=116, PETRI_TRANSITIONS=85} [2022-12-13 01:57:25,258 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 87 predicate places. [2022-12-13 01:57:25,258 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:57:25,258 INFO L89 Accepts]: Start accepts. Operand has 116 places, 85 transitions, 895 flow [2022-12-13 01:57:25,259 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:57:25,259 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:57:25,259 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 85 transitions, 895 flow [2022-12-13 01:57:25,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 85 transitions, 895 flow [2022-12-13 01:57:25,295 INFO L130 PetriNetUnfolder]: 36/333 cut-off events. [2022-12-13 01:57:25,295 INFO L131 PetriNetUnfolder]: For 490/490 co-relation queries the response was YES. [2022-12-13 01:57:25,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 333 events. 36/333 cut-off events. For 490/490 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2255 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 825. Up to 36 conditions per place. [2022-12-13 01:57:25,297 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 85 transitions, 895 flow [2022-12-13 01:57:25,298 INFO L226 LiptonReduction]: Number of co-enabled transitions 456 [2022-12-13 01:57:28,339 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:28,340 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:28,340 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:28,340 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:28,340 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:28,340 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,045 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,045 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,045 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,045 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,045 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,045 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,728 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,729 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,729 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,729 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,729 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:29,729 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:30,383 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:30,384 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:30,384 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:30,384 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:30,384 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:30,384 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,058 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,058 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,058 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,058 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,058 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,058 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,743 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,744 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,744 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,744 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,744 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:31,744 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:32,397 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:32,397 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:32,397 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:32,397 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:32,397 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:32,397 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,062 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,063 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,063 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,063 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,063 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,063 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,747 WARN L322 ript$VariableManager]: TermVariable LBE578 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,748 WARN L322 ript$VariableManager]: TermVariable LBE147 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,748 WARN L322 ript$VariableManager]: TermVariable LBE606 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,748 WARN L322 ript$VariableManager]: TermVariable LBE182 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,748 WARN L322 ript$VariableManager]: TermVariable LBE170 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:33,748 WARN L322 ript$VariableManager]: TermVariable LBE536 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-13 01:57:34,406 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 01:57:34,407 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9148 [2022-12-13 01:57:34,407 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 83 transitions, 961 flow [2022-12-13 01:57:34,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:57:34,407 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:57:34,407 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:57:34,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 01:57:34,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:57:34,607 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:57:34,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:57:34,608 INFO L85 PathProgramCache]: Analyzing trace with hash 625286795, now seen corresponding path program 1 times [2022-12-13 01:57:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:57:34,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949689072] [2022-12-13 01:57:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:57:34,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:57:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:57:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:57:35,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:57:35,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949689072] [2022-12-13 01:57:35,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949689072] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:57:35,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713944964] [2022-12-13 01:57:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:57:35,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:57:35,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:57:35,240 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:57:35,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 01:57:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:57:35,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 01:57:35,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:57:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 01:57:35,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 01:57:35,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713944964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:57:35,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 01:57:35,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-12-13 01:57:35,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456491732] [2022-12-13 01:57:35,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:57:35,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 01:57:35,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:57:35,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 01:57:35,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 01:57:35,553 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 42 [2022-12-13 01:57:35,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 83 transitions, 961 flow. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:57:35,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:57:35,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 42 [2022-12-13 01:57:35,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:57:36,286 INFO L130 PetriNetUnfolder]: 1796/3103 cut-off events. [2022-12-13 01:57:36,286 INFO L131 PetriNetUnfolder]: For 14950/14950 co-relation queries the response was YES. [2022-12-13 01:57:36,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10793 conditions, 3103 events. 1796/3103 cut-off events. For 14950/14950 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 17776 event pairs, 1347 based on Foata normal form. 24/3104 useless extension candidates. Maximal degree in co-relation 10734. Up to 1544 conditions per place. [2022-12-13 01:57:36,296 INFO L137 encePairwiseOnDemand]: 23/42 looper letters, 88 selfloop transitions, 29 changer transitions 1/118 dead transitions. [2022-12-13 01:57:36,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 118 transitions, 1397 flow [2022-12-13 01:57:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 01:57:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 01:57:36,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2022-12-13 01:57:36,297 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3134920634920635 [2022-12-13 01:57:36,297 INFO L175 Difference]: Start difference. First operand has 97 places, 83 transitions, 961 flow. Second operand 6 states and 79 transitions. [2022-12-13 01:57:36,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 118 transitions, 1397 flow [2022-12-13 01:57:36,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 118 transitions, 1150 flow, removed 68 selfloop flow, removed 15 redundant places. [2022-12-13 01:57:36,322 INFO L231 Difference]: Finished difference. Result has 89 places, 91 transitions, 896 flow [2022-12-13 01:57:36,323 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=896, PETRI_PLACES=89, PETRI_TRANSITIONS=91} [2022-12-13 01:57:36,323 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 60 predicate places. [2022-12-13 01:57:36,323 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:57:36,323 INFO L89 Accepts]: Start accepts. Operand has 89 places, 91 transitions, 896 flow [2022-12-13 01:57:36,323 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:57:36,324 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:57:36,324 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 91 transitions, 896 flow [2022-12-13 01:57:36,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 91 transitions, 896 flow [2022-12-13 01:57:36,365 INFO L130 PetriNetUnfolder]: 44/370 cut-off events. [2022-12-13 01:57:36,365 INFO L131 PetriNetUnfolder]: For 526/526 co-relation queries the response was YES. [2022-12-13 01:57:36,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 370 events. 44/370 cut-off events. For 526/526 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2539 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 834. Up to 42 conditions per place. [2022-12-13 01:57:36,367 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 91 transitions, 896 flow [2022-12-13 01:57:36,367 INFO L226 LiptonReduction]: Number of co-enabled transitions 492 [2022-12-13 01:57:36,368 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:57:36,368 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 45 [2022-12-13 01:57:36,368 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 91 transitions, 896 flow [2022-12-13 01:57:36,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 01:57:36,368 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:57:36,368 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:57:36,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-13 01:57:36,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 01:57:36,569 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 01:57:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:57:36,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1591360356, now seen corresponding path program 1 times [2022-12-13 01:57:36,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:57:36,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949199807] [2022-12-13 01:57:36,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:57:36,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:57:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:57:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:57:37,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:57:37,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949199807] [2022-12-13 01:57:37,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949199807] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 01:57:37,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312282259] [2022-12-13 01:57:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:57:37,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 01:57:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:57:37,832 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 01:57:37,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 01:57:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:57:38,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-13 01:57:38,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 01:57:38,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:57:38,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 01:57:49,149 INFO L321 Elim1Store]: treesize reduction 480, result has 81.8 percent of original size [2022-12-13 01:57:49,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 1021 treesize of output 2863 Received shutdown request... [2022-12-13 02:03:56,963 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-13 02:03:56,965 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 02:03:56,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 02:03:56,986 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 02:03:56,988 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 02:03:57,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 02:03:57,170 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 22ms.. [2022-12-13 02:03:57,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 02:03:57,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 02:03:57,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 02:03:57,172 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 02:03:57,174 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 02:03:57,174 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 02:03:57,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:03:57 BasicIcfg [2022-12-13 02:03:57,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 02:03:57,176 INFO L158 Benchmark]: Toolchain (without parser) took 812875.21ms. Allocated memory was 211.8MB in the beginning and 650.1MB in the end (delta: 438.3MB). Free memory was 188.0MB in the beginning and 313.4MB in the end (delta: -125.4MB). Peak memory consumption was 429.3MB. Max. memory is 8.0GB. [2022-12-13 02:03:57,176 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 187.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 02:03:57,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.50ms. Allocated memory is still 211.8MB. Free memory was 187.5MB in the beginning and 172.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 02:03:57,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.82ms. Allocated memory is still 211.8MB. Free memory was 172.8MB in the beginning and 170.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 02:03:57,177 INFO L158 Benchmark]: Boogie Preprocessor took 57.82ms. Allocated memory is still 211.8MB. Free memory was 170.2MB in the beginning and 168.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 02:03:57,177 INFO L158 Benchmark]: RCFGBuilder took 799.21ms. Allocated memory is still 211.8MB. Free memory was 168.1MB in the beginning and 121.4MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-12-13 02:03:57,177 INFO L158 Benchmark]: TraceAbstraction took 811716.30ms. Allocated memory was 211.8MB in the beginning and 650.1MB in the end (delta: 438.3MB). Free memory was 120.4MB in the beginning and 313.4MB in the end (delta: -193.0MB). Peak memory consumption was 362.2MB. Max. memory is 8.0GB. [2022-12-13 02:03:57,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 187.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.50ms. Allocated memory is still 211.8MB. Free memory was 187.5MB in the beginning and 172.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.82ms. Allocated memory is still 211.8MB. Free memory was 172.8MB in the beginning and 170.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.82ms. Allocated memory is still 211.8MB. Free memory was 170.2MB in the beginning and 168.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 799.21ms. Allocated memory is still 211.8MB. Free memory was 168.1MB in the beginning and 121.4MB in the end (delta: 46.7MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 811716.30ms. Allocated memory was 211.8MB in the beginning and 650.1MB in the end (delta: 438.3MB). Free memory was 120.4MB in the beginning and 313.4MB in the end (delta: -193.0MB). Peak memory consumption was 362.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 223 PlacesBefore, 29 PlacesAfterwards, 240 TransitionsBefore, 25 TransitionsAfterwards, 2442 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 154 TrivialYvCompositions, 40 ConcurrentYvCompositions, 16 ChoiceCompositions, 210 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1539, independent: 1539, independent conditional: 1539, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1539, independent: 1539, independent conditional: 0, independent unconditional: 1539, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1539, independent: 1539, independent conditional: 0, independent unconditional: 1539, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1539, independent: 1539, independent conditional: 0, independent unconditional: 1539, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1164, independent: 1164, independent conditional: 0, independent unconditional: 1164, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1164, independent: 1164, independent conditional: 0, independent unconditional: 1164, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1539, independent: 375, independent conditional: 0, independent unconditional: 375, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1164, unknown conditional: 0, unknown unconditional: 1164] , Statistics on independence cache: Total cache size (in pairs): 2182, Positive cache size: 2182, Positive conditional cache size: 0, Positive unconditional cache size: 2182, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 26 PlacesBefore, 26 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 30 PlacesBefore, 30 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 30 PlacesBefore, 30 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7s, 33 PlacesBefore, 33 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 14, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 36 PlacesBefore, 36 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 14, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.6s, 47 PlacesBefore, 47 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 47, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 48 PlacesBefore, 48 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 47, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 53 PlacesBefore, 53 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 47, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 52 PlacesBefore, 52 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 47, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 60 PlacesBefore, 60 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 50, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 81 PlacesBefore, 80 PlacesAfterwards, 92 TransitionsBefore, 91 TransitionsAfterwards, 554 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 56, Positive conditional cache size: 56, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 81 PlacesBefore, 81 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 574 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 56, Positive conditional cache size: 56, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 78 PlacesBefore, 78 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 554 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 56, Positive conditional cache size: 56, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 74 PlacesBefore, 73 PlacesAfterwards, 66 TransitionsBefore, 65 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 56, Positive conditional cache size: 56, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 88 PlacesBefore, 88 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 640 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 66, Positive conditional cache size: 66, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 91 PlacesBefore, 91 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 81, Positive conditional cache size: 81, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 89 PlacesBefore, 89 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 568 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 81, Positive conditional cache size: 81, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.7s, 111 PlacesBefore, 111 PlacesAfterwards, 105 TransitionsBefore, 105 TransitionsAfterwards, 638 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 81, Positive conditional cache size: 81, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 99 PlacesBefore, 97 PlacesAfterwards, 85 TransitionsBefore, 83 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 45, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 45, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45, independent: 45, independent conditional: 45, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45, independent: 45, independent conditional: 45, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, independent: 20, independent conditional: 20, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 316, Positive cache size: 316, Positive conditional cache size: 316, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 89 PlacesBefore, 89 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 316, Positive cache size: 316, Positive conditional cache size: 316, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 22ms.. - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 22ms.. - TimeoutResultAtElement [Line: 155]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 22ms.. - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 22ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 264 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 811.6s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 70.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 51 mSolverCounterUnknown, 1829 SdHoareTripleChecker+Valid, 30.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1829 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 30.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 325 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3815 IncrementalHoareTripleChecker+Invalid, 4191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 325 mSolverCounterUnsat, 0 mSDtfsCounter, 3815 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 602 GetRequests, 414 SyntacticMatches, 3 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 70.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1259occurred in iteration=19, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 272.9s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 866 ConstructedInterpolants, 35 QuantifiedInterpolants, 22715 SizeOfPredicates, 583 NumberOfNonLiveVariables, 3773 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 45 InterpolantComputations, 10 PerfectInterpolantSequences, 81/139 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown