/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-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:09:22,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:09:22,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:09:22,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:09:22,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:09:22,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:09:22,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:09:22,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:09:22,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:09:22,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:09:22,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:09:22,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:09:22,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:09:22,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:09:22,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:09:22,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:09:22,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:09:22,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:09:22,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:09:22,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:09:22,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:09:22,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:09:22,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:09:22,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:09:22,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:09:22,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:09:22,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:09:22,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:09:22,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:09:22,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:09:22,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:09:22,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:09:22,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:09:22,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:09:22,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:09:22,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:09:22,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:09:22,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:09:22,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:09:22,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:09:22,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:09:22,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 00:09:22,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:09:22,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:09:22,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:09:22,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:09:22,834 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:09:22,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:09:22,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:09:22,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:09:22,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:09:22,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:09:22,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:09:22,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:09:22,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:09:22,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:09:22,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:09:22,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:09:22,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:09:22,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:09:22,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:09:22,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:09:22,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:09:23,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:09:23,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:09:23,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:09:23,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:09:23,136 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:09:23,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-06 00:09:24,124 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:09:24,329 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:09:24,329 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-06 00:09:24,334 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1606bdbe/ca10e27ee602407c87ca7852b202a98a/FLAGc790e5dff [2022-12-06 00:09:24,345 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1606bdbe/ca10e27ee602407c87ca7852b202a98a [2022-12-06 00:09:24,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:09:24,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:09:24,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:09:24,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:09:24,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:09:24,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3153800e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24, skipping insertion in model container [2022-12-06 00:09:24,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:09:24,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:09:24,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:09:24,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:09:24,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:09:24,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:09:24,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:09:24,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:09:24,536 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-dot-product-alt.wvr.c[3182,3195] [2022-12-06 00:09:24,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:09:24,560 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:09:24,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:09:24,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:09:24,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:09:24,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:09:24,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:09:24,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:09:24,593 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-dot-product-alt.wvr.c[3182,3195] [2022-12-06 00:09:24,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:09:24,615 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:09:24,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24 WrapperNode [2022-12-06 00:09:24,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:09:24,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:09:24,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:09:24,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:09:24,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,679 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 362 [2022-12-06 00:09:24,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:09:24,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:09:24,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:09:24,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:09:24,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,707 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:09:24,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:09:24,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:09:24,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:09:24,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (1/1) ... [2022-12-06 00:09:24,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:09:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:09:24,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 00:09:24,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 00:09:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:09:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 00:09:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:09:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:09:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:09:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 00:09:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:09:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:09:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:09:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:09:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 00:09:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 00:09:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:09:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:09:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:09:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 00:09:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:09:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:09:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:09:24,796 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 00:09:24,892 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:09:24,894 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:09:25,390 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:09:25,529 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:09:25,530 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-06 00:09:25,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:09:25 BoogieIcfgContainer [2022-12-06 00:09:25,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:09:25,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:09:25,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:09:25,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:09:25,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:09:24" (1/3) ... [2022-12-06 00:09:25,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24756c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:09:25, skipping insertion in model container [2022-12-06 00:09:25,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:09:24" (2/3) ... [2022-12-06 00:09:25,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24756c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:09:25, skipping insertion in model container [2022-12-06 00:09:25,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:09:25" (3/3) ... [2022-12-06 00:09:25,539 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-12-06 00:09:25,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:09:25,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:09:25,553 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:09:25,630 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 00:09:25,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 323 transitions, 670 flow [2022-12-06 00:09:25,782 INFO L130 PetriNetUnfolder]: 35/320 cut-off events. [2022-12-06 00:09:25,782 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:09:25,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 35/320 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 621 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-06 00:09:25,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 323 transitions, 670 flow [2022-12-06 00:09:25,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 310 transitions, 638 flow [2022-12-06 00:09:25,799 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:25,823 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-06 00:09:25,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 310 transitions, 638 flow [2022-12-06 00:09:25,896 INFO L130 PetriNetUnfolder]: 35/310 cut-off events. [2022-12-06 00:09:25,896 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:09:25,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 35/310 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 619 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-06 00:09:25,908 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-06 00:09:25,908 INFO L188 LiptonReduction]: Number of co-enabled transitions 11934 [2022-12-06 00:09:28,412 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:28,413 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:28,415 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:28,416 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,072 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,073 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,074 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,075 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,315 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,316 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,317 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,317 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,350 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,351 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,352 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,354 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,810 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,811 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:29,812 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:29,813 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:30,807 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:30,808 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:31,156 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:31,156 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:31,161 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:31,162 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:32,072 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:32,073 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:32,075 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:32,075 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:32,668 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:32,669 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:32,670 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:32,671 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:32,718 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:32,719 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:33,744 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:33,745 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:33,746 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:33,746 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:36,667 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:36,668 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:36,674 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:36,675 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:36,970 INFO L203 LiptonReduction]: Total number of compositions: 271 [2022-12-06 00:09:36,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:09:36,984 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;@507734da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:09:36,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 00:09:36,990 INFO L130 PetriNetUnfolder]: 9/39 cut-off events. [2022-12-06 00:09:36,990 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:09:36,990 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:36,990 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:36,991 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)] === [2022-12-06 00:09:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1957612998, now seen corresponding path program 1 times [2022-12-06 00:09:37,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:37,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881195299] [2022-12-06 00:09:37,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:09:37,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:37,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881195299] [2022-12-06 00:09:37,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881195299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:09:37,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:09:37,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:09:37,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296886526] [2022-12-06 00:09:37,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:09:37,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:09:37,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:09:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:09:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:09:37,481 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 00:09:37,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:37,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:09:37,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 00:09:37,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:09:37,832 INFO L130 PetriNetUnfolder]: 1391/1858 cut-off events. [2022-12-06 00:09:37,832 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-06 00:09:37,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3831 conditions, 1858 events. 1391/1858 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 7096 event pairs, 721 based on Foata normal form. 0/1164 useless extension candidates. Maximal degree in co-relation 3413. Up to 1821 conditions per place. [2022-12-06 00:09:37,842 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 35 selfloop transitions, 4 changer transitions 7/49 dead transitions. [2022-12-06 00:09:37,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 208 flow [2022-12-06 00:09:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:09:37,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:09:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2022-12-06 00:09:37,851 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32 [2022-12-06 00:09:37,852 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 98 flow. Second operand 5 states and 64 transitions. [2022-12-06 00:09:37,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 208 flow [2022-12-06 00:09:37,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 00:09:37,858 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 116 flow [2022-12-06 00:09:37,859 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2022-12-06 00:09:37,862 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-06 00:09:37,862 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:09:37,863 INFO L89 Accepts]: Start accepts. Operand has 42 places, 42 transitions, 116 flow [2022-12-06 00:09:37,865 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:09:37,865 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:37,865 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 42 transitions, 116 flow [2022-12-06 00:09:37,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 42 transitions, 116 flow [2022-12-06 00:09:37,871 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2022-12-06 00:09:37,872 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:09:37,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 9/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2022-12-06 00:09:37,872 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 42 transitions, 116 flow [2022-12-06 00:09:37,872 INFO L188 LiptonReduction]: Number of co-enabled transitions 414 [2022-12-06 00:09:37,921 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:09:37,922 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 60 [2022-12-06 00:09:37,922 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 116 flow [2022-12-06 00:09:37,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:37,922 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:37,922 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:37,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:09:37,923 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)] === [2022-12-06 00:09:37,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1367876668, now seen corresponding path program 1 times [2022-12-06 00:09:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:37,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483122907] [2022-12-06 00:09:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 00:09:38,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:38,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483122907] [2022-12-06 00:09:38,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483122907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:09:38,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691951719] [2022-12-06 00:09:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:38,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:09:38,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:09:38,139 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) [2022-12-06 00:09:38,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 00:09:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:38,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 00:09:38,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:09:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 00:09:38,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:09:38,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 00:09:38,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691951719] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 00:09:38,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 00:09:38,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-06 00:09:38,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201169016] [2022-12-06 00:09:38,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:09:38,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:09:38,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:09:38,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:09:38,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 00:09:38,372 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 40 [2022-12-06 00:09:38,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:38,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:09:38,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 40 [2022-12-06 00:09:38,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:09:38,647 INFO L130 PetriNetUnfolder]: 1577/2098 cut-off events. [2022-12-06 00:09:38,647 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-06 00:09:38,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4270 conditions, 2098 events. 1577/2098 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8363 event pairs, 342 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 4247. Up to 1314 conditions per place. [2022-12-06 00:09:38,656 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2022-12-06 00:09:38,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 262 flow [2022-12-06 00:09:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:09:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:09:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-06 00:09:38,660 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33 [2022-12-06 00:09:38,660 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 116 flow. Second operand 5 states and 66 transitions. [2022-12-06 00:09:38,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 262 flow [2022-12-06 00:09:38,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 250 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-06 00:09:38,662 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 135 flow [2022-12-06 00:09:38,662 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2022-12-06 00:09:38,662 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-12-06 00:09:38,662 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:09:38,663 INFO L89 Accepts]: Start accepts. Operand has 43 places, 44 transitions, 135 flow [2022-12-06 00:09:38,664 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:09:38,664 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:38,664 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 44 transitions, 135 flow [2022-12-06 00:09:38,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 44 transitions, 135 flow [2022-12-06 00:09:38,671 INFO L130 PetriNetUnfolder]: 10/44 cut-off events. [2022-12-06 00:09:38,672 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:09:38,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 44 events. 10/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2022-12-06 00:09:38,672 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 44 transitions, 135 flow [2022-12-06 00:09:38,672 INFO L188 LiptonReduction]: Number of co-enabled transitions 478 [2022-12-06 00:09:38,687 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:38,688 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:38,690 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:38,690 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:40,401 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:40,401 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:40,403 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:40,404 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:40,712 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 00:09:40,713 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2051 [2022-12-06 00:09:40,713 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 125 flow [2022-12-06 00:09:40,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:40,713 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:40,713 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:40,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 00:09:40,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:09:40,914 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)] === [2022-12-06 00:09:40,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1859677446, now seen corresponding path program 1 times [2022-12-06 00:09:40,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:40,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771745973] [2022-12-06 00:09:40,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:40,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:09:41,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:41,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771745973] [2022-12-06 00:09:41,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771745973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:09:41,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:09:41,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:09:41,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898958620] [2022-12-06 00:09:41,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:09:41,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 00:09:41,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:09:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 00:09:41,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 00:09:41,018 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 40 [2022-12-06 00:09:41,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:41,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:09:41,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 40 [2022-12-06 00:09:41,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:09:41,530 INFO L130 PetriNetUnfolder]: 2847/3901 cut-off events. [2022-12-06 00:09:41,530 INFO L131 PetriNetUnfolder]: For 1062/1324 co-relation queries the response was YES. [2022-12-06 00:09:41,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9102 conditions, 3901 events. 2847/3901 cut-off events. For 1062/1324 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16440 event pairs, 802 based on Foata normal form. 262/3371 useless extension candidates. Maximal degree in co-relation 9080. Up to 1671 conditions per place. [2022-12-06 00:09:41,549 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 104 selfloop transitions, 10 changer transitions 0/115 dead transitions. [2022-12-06 00:09:41,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 115 transitions, 561 flow [2022-12-06 00:09:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 00:09:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 00:09:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2022-12-06 00:09:41,551 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2022-12-06 00:09:41,552 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 125 flow. Second operand 7 states and 115 transitions. [2022-12-06 00:09:41,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 115 transitions, 561 flow [2022-12-06 00:09:41,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 115 transitions, 537 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-06 00:09:41,555 INFO L231 Difference]: Finished difference. Result has 47 places, 48 transitions, 166 flow [2022-12-06 00:09:41,556 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2022-12-06 00:09:41,556 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2022-12-06 00:09:41,557 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:09:41,557 INFO L89 Accepts]: Start accepts. Operand has 47 places, 48 transitions, 166 flow [2022-12-06 00:09:41,558 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:09:41,558 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:41,558 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 48 transitions, 166 flow [2022-12-06 00:09:41,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 48 transitions, 166 flow [2022-12-06 00:09:41,571 INFO L130 PetriNetUnfolder]: 23/93 cut-off events. [2022-12-06 00:09:41,571 INFO L131 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2022-12-06 00:09:41,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 93 events. 23/93 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 115. Up to 12 conditions per place. [2022-12-06 00:09:41,573 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 48 transitions, 166 flow [2022-12-06 00:09:41,573 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 00:09:41,576 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:09:41,578 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 21 [2022-12-06 00:09:41,578 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 166 flow [2022-12-06 00:09:41,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:41,578 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:41,578 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:41,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:09:41,578 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)] === [2022-12-06 00:09:41,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:41,579 INFO L85 PathProgramCache]: Analyzing trace with hash 437331657, now seen corresponding path program 1 times [2022-12-06 00:09:41,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:41,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909892483] [2022-12-06 00:09:41,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:41,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:09:41,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:41,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909892483] [2022-12-06 00:09:41,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909892483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:09:41,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:09:41,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:09:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319229502] [2022-12-06 00:09:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:09:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:09:41,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:09:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:09:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:09:41,672 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 00:09:41,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:41,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:09:41,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 00:09:41,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:09:42,130 INFO L130 PetriNetUnfolder]: 3081/4386 cut-off events. [2022-12-06 00:09:42,130 INFO L131 PetriNetUnfolder]: For 2425/3061 co-relation queries the response was YES. [2022-12-06 00:09:42,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11796 conditions, 4386 events. 3081/4386 cut-off events. For 2425/3061 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20999 event pairs, 1910 based on Foata normal form. 740/4175 useless extension candidates. Maximal degree in co-relation 7404. Up to 3075 conditions per place. [2022-12-06 00:09:42,150 INFO L137 encePairwiseOnDemand]: 35/40 looper letters, 43 selfloop transitions, 3 changer transitions 29/80 dead transitions. [2022-12-06 00:09:42,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 413 flow [2022-12-06 00:09:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:09:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:09:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2022-12-06 00:09:42,153 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.405 [2022-12-06 00:09:42,153 INFO L175 Difference]: Start difference. First operand has 47 places, 48 transitions, 166 flow. Second operand 5 states and 81 transitions. [2022-12-06 00:09:42,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 413 flow [2022-12-06 00:09:42,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 80 transitions, 405 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-06 00:09:42,160 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 177 flow [2022-12-06 00:09:42,161 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2022-12-06 00:09:42,161 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2022-12-06 00:09:42,161 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:09:42,161 INFO L89 Accepts]: Start accepts. Operand has 51 places, 49 transitions, 177 flow [2022-12-06 00:09:42,162 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:09:42,162 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:42,162 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 177 flow [2022-12-06 00:09:42,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 49 transitions, 177 flow [2022-12-06 00:09:42,175 INFO L130 PetriNetUnfolder]: 22/93 cut-off events. [2022-12-06 00:09:42,175 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-12-06 00:09:42,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 93 events. 22/93 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 1 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 131. Up to 10 conditions per place. [2022-12-06 00:09:42,176 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 49 transitions, 177 flow [2022-12-06 00:09:42,176 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 00:09:42,177 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:09:42,178 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-06 00:09:42,178 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 177 flow [2022-12-06 00:09:42,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:09:42,178 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:42,178 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:42,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 00:09:42,178 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)] === [2022-12-06 00:09:42,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:42,179 INFO L85 PathProgramCache]: Analyzing trace with hash -474845525, now seen corresponding path program 1 times [2022-12-06 00:09:42,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:42,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676653997] [2022-12-06 00:09:42,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:42,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:09:42,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:42,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676653997] [2022-12-06 00:09:42,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676653997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:09:42,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:09:42,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:09:42,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722293107] [2022-12-06 00:09:42,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:09:42,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:09:42,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:09:42,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:09:42,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:09:42,339 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 00:09:42,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-12-06 00:09:42,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:09:42,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 00:09:42,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:09:42,899 INFO L130 PetriNetUnfolder]: 3901/5648 cut-off events. [2022-12-06 00:09:42,899 INFO L131 PetriNetUnfolder]: For 3480/4330 co-relation queries the response was YES. [2022-12-06 00:09:42,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14958 conditions, 5648 events. 3901/5648 cut-off events. For 3480/4330 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 29432 event pairs, 2463 based on Foata normal form. 1194/5628 useless extension candidates. Maximal degree in co-relation 10257. Up to 3078 conditions per place. [2022-12-06 00:09:42,927 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 41 selfloop transitions, 4 changer transitions 66/116 dead transitions. [2022-12-06 00:09:42,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 116 transitions, 610 flow [2022-12-06 00:09:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:09:42,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:09:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2022-12-06 00:09:42,929 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-06 00:09:42,929 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 177 flow. Second operand 5 states and 112 transitions. [2022-12-06 00:09:42,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 116 transitions, 610 flow [2022-12-06 00:09:42,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 116 transitions, 601 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-06 00:09:42,945 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 199 flow [2022-12-06 00:09:42,946 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2022-12-06 00:09:42,947 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-12-06 00:09:42,947 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:09:42,947 INFO L89 Accepts]: Start accepts. Operand has 54 places, 50 transitions, 199 flow [2022-12-06 00:09:42,950 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:09:42,950 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:42,950 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 50 transitions, 199 flow [2022-12-06 00:09:42,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 199 flow [2022-12-06 00:09:42,959 INFO L130 PetriNetUnfolder]: 22/95 cut-off events. [2022-12-06 00:09:42,959 INFO L131 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2022-12-06 00:09:42,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 95 events. 22/95 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 1 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 136. Up to 10 conditions per place. [2022-12-06 00:09:42,961 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 50 transitions, 199 flow [2022-12-06 00:09:42,961 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 00:09:42,966 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:42,966 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:42,969 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:42,969 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 00:09:43,226 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:09:43,227 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 280 [2022-12-06 00:09:43,227 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 195 flow [2022-12-06 00:09:43,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2022-12-06 00:09:43,227 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:43,227 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:43,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 00:09:43,227 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)] === [2022-12-06 00:09:43,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash -257706876, now seen corresponding path program 1 times [2022-12-06 00:09:43,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:43,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135767584] [2022-12-06 00:09:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:43,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 00:09:43,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:43,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135767584] [2022-12-06 00:09:43,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135767584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:09:43,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:09:43,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:09:43,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259816875] [2022-12-06 00:09:43,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:09:43,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:09:43,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:09:43,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:09:43,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:09:43,480 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 00:09:43,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2022-12-06 00:09:43,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:09:43,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 00:09:43,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:09:44,026 INFO L130 PetriNetUnfolder]: 3056/4261 cut-off events. [2022-12-06 00:09:44,027 INFO L131 PetriNetUnfolder]: For 3184/3604 co-relation queries the response was YES. [2022-12-06 00:09:44,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11982 conditions, 4261 events. 3056/4261 cut-off events. For 3184/3604 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20198 event pairs, 1361 based on Foata normal form. 510/3774 useless extension candidates. Maximal degree in co-relation 11939. Up to 2887 conditions per place. [2022-12-06 00:09:44,041 INFO L137 encePairwiseOnDemand]: 36/40 looper letters, 57 selfloop transitions, 4 changer transitions 39/105 dead transitions. [2022-12-06 00:09:44,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 105 transitions, 603 flow [2022-12-06 00:09:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:09:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:09:44,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2022-12-06 00:09:44,042 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.485 [2022-12-06 00:09:44,042 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 195 flow. Second operand 5 states and 97 transitions. [2022-12-06 00:09:44,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 105 transitions, 603 flow [2022-12-06 00:09:44,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 553 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-06 00:09:44,052 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 193 flow [2022-12-06 00:09:44,052 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2022-12-06 00:09:44,054 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-12-06 00:09:44,054 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:09:44,054 INFO L89 Accepts]: Start accepts. Operand has 54 places, 51 transitions, 193 flow [2022-12-06 00:09:44,055 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:09:44,055 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:09:44,055 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions, 193 flow [2022-12-06 00:09:44,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 193 flow [2022-12-06 00:09:44,064 INFO L130 PetriNetUnfolder]: 21/95 cut-off events. [2022-12-06 00:09:44,064 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-12-06 00:09:44,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 95 events. 21/95 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 1 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 138. Up to 10 conditions per place. [2022-12-06 00:09:44,065 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 51 transitions, 193 flow [2022-12-06 00:09:44,065 INFO L188 LiptonReduction]: Number of co-enabled transitions 774 [2022-12-06 00:09:44,582 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 00:09:44,582 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 528 [2022-12-06 00:09:44,583 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 189 flow [2022-12-06 00:09:44,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2022-12-06 00:09:44,583 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:09:44,583 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:09:44,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 00:09:44,583 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)] === [2022-12-06 00:09:44,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:09:44,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1893454482, now seen corresponding path program 1 times [2022-12-06 00:09:44,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:09:44,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982974429] [2022-12-06 00:09:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:44,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:09:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:09:46,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:09:46,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982974429] [2022-12-06 00:09:46,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982974429] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:09:46,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720106787] [2022-12-06 00:09:46,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:09:46,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:09:46,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:09:46,642 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) [2022-12-06 00:09:46,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 00:09:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:09:46,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 89 conjunts are in the unsatisfiable core [2022-12-06 00:09:46,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:09:46,891 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 6 treesize of output 5 [2022-12-06 00:09:46,948 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 11 treesize of output 7 [2022-12-06 00:09:46,972 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 00:09:46,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 00:09:47,041 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 [2022-12-06 00:09:47,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 00:09:47,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 00:09:47,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:09:47,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-12-06 00:09:47,155 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 [2022-12-06 00:09:47,161 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 [2022-12-06 00:09:47,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:09:47,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-12-06 00:09:47,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:09:47,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-12-06 00:09:47,395 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 [2022-12-06 00:09:47,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:09:47,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-12-06 00:09:47,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:09:47,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2022-12-06 00:09:47,608 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 [2022-12-06 00:09:48,625 INFO L321 Elim1Store]: treesize reduction 161, result has 29.7 percent of original size [2022-12-06 00:09:48,626 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 10 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 150 [2022-12-06 00:09:48,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:09:48,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 113 [2022-12-06 00:09:48,652 INFO L321 Elim1Store]: treesize reduction 30, result has 18.9 percent of original size [2022-12-06 00:09:48,652 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 125 treesize of output 91 [2022-12-06 00:09:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:09:48,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:09:55,054 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_482 (Array Int Int)) (v_ArrVal_485 (Array Int Int)) (~B~0.base Int) (v_ArrVal_484 (Array Int Int)) (v_ArrVal_487 (Array Int Int)) (v_ArrVal_486 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_479 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (~B~0.offset Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_479))) (let ((.cse11 (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_482))) (let ((.cse5 (store .cse11 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_487))) (let ((.cse9 (select .cse5 c_~A~0.base)) (.cse14 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse13 (select .cse5 ~B~0.base)) (.cse12 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse2 (select .cse13 (+ .cse12 ~B~0.offset))) (.cse3 (select .cse9 (+ ~A~0.offset .cse14))) (.cse4 (select .cse13 (+ ~B~0.offset .cse14))) (.cse1 (+ .cse12 ~A~0.offset))) (or (< (select (select .cse0 c_~A~0.base) .cse1) 0) (not (< .cse2 c_~maxB~0)) (not (<= 0 .cse3)) (not (<= 0 .cse2)) (not (<= 0 .cse4)) (let ((.cse6 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_481) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_484) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_485) c_~mult~0.base)) (.cse8 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_483) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_486) c_~mult~0.base))) (< (+ (let ((.cse7 (+ c_~mult~0.offset (* (select .cse9 .cse1) 4)))) (select (select .cse5 (select .cse6 .cse7)) (+ (select .cse8 .cse7) (* 4 .cse2)))) c_~res1~0) (+ c_~res2~0 1 (let ((.cse10 (+ (* 4 .cse3) c_~mult~0.offset))) (select (select .cse5 (select .cse6 .cse10)) (+ (* .cse4 4) (select .cse8 .cse10))))))) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse3 1)) (not (< .cse4 c_~maxB~0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse11 c_~A~0.base) .cse1) 1))))))))) (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_482 (Array Int Int)) (v_ArrVal_485 (Array Int Int)) (~B~0.base Int) (v_ArrVal_484 (Array Int Int)) (v_ArrVal_487 (Array Int Int)) (v_ArrVal_486 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_479 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (~B~0.offset Int)) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_479))) (let ((.cse26 (store .cse15 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_482))) (let ((.cse19 (store .cse26 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_487))) (let ((.cse25 (select .cse19 c_~A~0.base)) (.cse29 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse28 (select .cse19 ~B~0.base)) (.cse27 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse17 (select .cse28 (+ .cse27 ~B~0.offset))) (.cse18 (select .cse25 (+ ~A~0.offset .cse29))) (.cse22 (select .cse28 (+ ~B~0.offset .cse29))) (.cse16 (+ .cse27 ~A~0.offset))) (or (< (select (select .cse15 c_~A~0.base) .cse16) 0) (not (< .cse17 c_~maxB~0)) (not (<= 0 .cse18)) (let ((.cse20 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_481) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_484) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_485) c_~mult~0.base)) (.cse23 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_483) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_486) c_~mult~0.base))) (<= (+ c_~res2~0 (let ((.cse21 (+ (* 4 .cse18) c_~mult~0.offset))) (select (select .cse19 (select .cse20 .cse21)) (+ (* .cse22 4) (select .cse23 .cse21))))) (+ (let ((.cse24 (+ c_~mult~0.offset (* (select .cse25 .cse16) 4)))) (select (select .cse19 (select .cse20 .cse24)) (+ (select .cse23 .cse24) (* 4 .cse17)))) c_~res1~0))) (not (<= 0 .cse17)) (not (<= 0 .cse22)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse18 1)) (not (< .cse22 c_~maxB~0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse26 c_~A~0.base) .cse16) 1)))))))))) is different from false [2022-12-06 00:09:55,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:55,100 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 938 treesize of output 903 [2022-12-06 00:09:55,114 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:55,115 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 890 treesize of output 855 [2022-12-06 00:09:55,208 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:55,209 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 5734 treesize of output 5998 [2022-12-06 00:09:55,354 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:55,355 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 300394 treesize of output 290074 [2022-12-06 00:09:55,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:55,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 289629 treesize of output 283026 [2022-12-06 00:09:56,015 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:56,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 282973 treesize of output 256402 [2022-12-06 00:09:56,254 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:56,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 256349 treesize of output 243090 [2022-12-06 00:09:56,509 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:56,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243037 treesize of output 229778 [2022-12-06 00:09:56,647 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2022-12-06 00:09:56,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:56,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 229725 treesize of output 203154 [2022-12-06 00:09:57,010 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:57,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 203101 treesize of output 196498 [2022-12-06 00:09:57,303 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:57,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196445 treesize of output 193170 [2022-12-06 00:09:57,628 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:57,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193117 treesize of output 179858 [2022-12-06 00:09:57,927 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:57,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 179805 treesize of output 173202 [2022-12-06 00:09:58,228 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:58,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173149 treesize of output 159890 [2022-12-06 00:09:58,526 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:58,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 159837 treesize of output 153234 [2022-12-06 00:09:58,848 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 00:09:58,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153181 treesize of output 149906 Received shutdown request... [2022-12-06 00:22:50,331 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 00:22:50,336 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 00:22:50,340 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 [2022-12-06 00:22:50,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 00:22:50,531 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 [2022-12-06 00:22:50,532 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-41-2-1 context. [2022-12-06 00:22:50,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 00:22:50,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 00:22:50,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 00:22:50,534 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:22:50,536 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 00:22:50,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 00:22:50,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 12:22:50 BasicIcfg [2022-12-06 00:22:50,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 00:22:50,538 INFO L158 Benchmark]: Toolchain (without parser) took 806189.54ms. Allocated memory was 180.4MB in the beginning and 704.6MB in the end (delta: 524.3MB). Free memory was 157.3MB in the beginning and 269.1MB in the end (delta: -111.7MB). Peak memory consumption was 443.7MB. Max. memory is 8.0GB. [2022-12-06 00:22:50,538 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:22:50,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.46ms. Allocated memory is still 180.4MB. Free memory was 157.3MB in the beginning and 143.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 00:22:50,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.59ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 140.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 00:22:50,538 INFO L158 Benchmark]: Boogie Preprocessor took 31.70ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 138.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:22:50,539 INFO L158 Benchmark]: RCFGBuilder took 821.17ms. Allocated memory is still 180.4MB. Free memory was 138.4MB in the beginning and 144.3MB in the end (delta: -5.8MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-12-06 00:22:50,539 INFO L158 Benchmark]: TraceAbstraction took 805002.41ms. Allocated memory was 180.4MB in the beginning and 704.6MB in the end (delta: 524.3MB). Free memory was 143.7MB in the beginning and 269.1MB in the end (delta: -125.3MB). Peak memory consumption was 430.7MB. Max. memory is 8.0GB. [2022-12-06 00:22:50,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 127.9MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 266.46ms. Allocated memory is still 180.4MB. Free memory was 157.3MB in the beginning and 143.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.59ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 140.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.70ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 138.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 821.17ms. Allocated memory is still 180.4MB. Free memory was 138.4MB in the beginning and 144.3MB in the end (delta: -5.8MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 805002.41ms. Allocated memory was 180.4MB in the beginning and 704.6MB in the end (delta: 524.3MB). Free memory was 143.7MB in the beginning and 269.1MB in the end (delta: -125.3MB). Peak memory consumption was 430.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1s, 285 PlacesBefore, 41 PlacesAfterwards, 310 TransitionsBefore, 40 TransitionsAfterwards, 11934 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 147 TrivialYvCompositions, 97 ConcurrentYvCompositions, 26 ChoiceCompositions, 271 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 7837, independent unconditional: 0, dependent: 64, dependent conditional: 64, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7168, independent: 7128, independent conditional: 0, independent unconditional: 7128, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7168, independent: 7127, independent conditional: 0, independent unconditional: 7127, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7901, independent: 709, independent conditional: 0, independent unconditional: 709, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 7168, unknown conditional: 0, unknown unconditional: 7168] , Statistics on independence cache: Total cache size (in pairs): 13302, Positive cache size: 13262, Positive conditional cache size: 0, Positive unconditional cache size: 13262, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 40 PlacesBefore, 40 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 414 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 130, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 128, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 128, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 128, unknown conditional: 0, unknown unconditional: 128] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 2.0s, 43 PlacesBefore, 41 PlacesAfterwards, 44 TransitionsBefore, 42 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 398, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 114, independent unconditional: 284, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 450, independent: 398, independent conditional: 96, independent unconditional: 302, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 96, independent unconditional: 302, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 20, independent conditional: 3, independent unconditional: 17, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 450, independent: 378, independent conditional: 93, independent unconditional: 285, dependent: 49, dependent conditional: 9, dependent unconditional: 40, unknown: 23, unknown conditional: 6, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 3, Positive unconditional cache size: 127, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 226, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 96, independent unconditional: 130, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, 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: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 3, Positive unconditional cache size: 127, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 50 PlacesBefore, 50 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 238, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 108, independent unconditional: 130, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 260, independent: 238, independent conditional: 90, independent unconditional: 148, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 90, independent unconditional: 148, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 4, independent unconditional: 5, 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: 260, independent: 229, independent conditional: 86, independent unconditional: 143, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 9, unknown conditional: 4, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 139, Positive conditional cache size: 7, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 53 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 49 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 496, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 236, independent unconditional: 260, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, 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: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 139, Positive conditional cache size: 7, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5s, 54 PlacesBefore, 52 PlacesAfterwards, 51 TransitionsBefore, 49 TransitionsAfterwards, 774 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 534, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 289, independent unconditional: 245, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 578, independent: 534, independent conditional: 253, independent unconditional: 281, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 253, independent unconditional: 281, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, independent: 28, independent conditional: 20, independent unconditional: 8, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 4, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 19, independent conditional: 19, independent unconditional: 0, dependent: 5, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 578, independent: 506, independent conditional: 233, independent unconditional: 273, dependent: 42, dependent conditional: 4, dependent unconditional: 38, unknown: 30, unknown conditional: 21, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 187, Positive conditional cache size: 27, Positive unconditional cache size: 160, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-41-2-1 context. - TimeoutResultAtElement [Line: 104]: 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 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-41-2-1 context. - TimeoutResultAtElement [Line: 103]: 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 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-41-2-1 context. - TimeoutResultAtElement [Line: 102]: 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 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-41-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 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: 804.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 344 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 866 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 3 mSDtfsCounter, 866 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 SizeOfPredicates, 4 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 13/15 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