/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:24:03,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:24:03,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:24:03,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:24:03,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:24:03,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:24:03,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:24:03,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:24:03,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:24:03,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:24:03,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:24:03,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:24:03,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:24:03,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:24:03,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:24:03,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:24:03,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:24:03,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:24:03,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:24:03,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:24:03,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:24:03,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:24:03,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:24:03,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:24:03,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:24:03,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:24:03,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:24:03,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:24:03,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:24:03,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:24:03,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:24:03,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:24:03,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:24:03,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:24:03,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:24:03,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:24:03,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:24:03,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:24:03,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:24:03,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:24:03,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:24:03,727 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 05:24:03,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:24:03,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:24:03,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:24:03,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:24:03,753 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:24:03,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:24:03,754 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:24:03,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:24:03,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:24:03,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:24:03,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:24:03,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:24:03,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:24:03,755 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:24:03,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:24:03,755 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:24:03,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:24:03,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:24:03,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:24:03,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:24:03,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:24:03,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:24:03,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:24:04,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:24:04,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:24:04,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:24:04,031 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:24:04,031 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:24:04,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2022-12-06 05:24:05,411 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:24:05,588 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:24:05,590 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2022-12-06 05:24:05,596 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2d0ab5b/6cb5b58abc694268a9b9534768acf672/FLAG83aeb11ce [2022-12-06 05:24:05,613 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2d0ab5b/6cb5b58abc694268a9b9534768acf672 [2022-12-06 05:24:05,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:24:05,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:24:05,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:24:05,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:24:05,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:24:05,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3ee5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05, skipping insertion in model container [2022-12-06 05:24:05,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:24:05,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:24:05,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:24:05,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:24:05,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:24:05,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:24:05,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:24:05,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:24:05,812 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.wvr.c[2865,2878] [2022-12-06 05:24:05,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:24:05,832 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:24:05,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:24:05,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:24:05,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:24:05,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:24:05,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:24:05,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:24:05,864 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.wvr.c[2865,2878] [2022-12-06 05:24:05,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:24:05,880 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:24:05,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05 WrapperNode [2022-12-06 05:24:05,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:24:05,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:24:05,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:24:05,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:24:05,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,934 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 275 [2022-12-06 05:24:05,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:24:05,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:24:05,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:24:05,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:24:05,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,973 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:24:05,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:24:05,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:24:05,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:24:05,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (1/1) ... [2022-12-06 05:24:05,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:24:05,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:24:06,017 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 05:24:06,063 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 05:24:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:24:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:24:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:24:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:24:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:24:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:24:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:24:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:24:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 05:24:06,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 05:24:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:24:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 05:24:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 05:24:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 05:24:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:24:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:24:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:24:06,079 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 05:24:06,174 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:24:06,175 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:24:06,545 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:24:06,661 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:24:06,661 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-06 05:24:06,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:24:06 BoogieIcfgContainer [2022-12-06 05:24:06,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:24:06,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:24:06,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:24:06,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:24:06,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:24:05" (1/3) ... [2022-12-06 05:24:06,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be02ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:24:06, skipping insertion in model container [2022-12-06 05:24:06,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:05" (2/3) ... [2022-12-06 05:24:06,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be02ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:24:06, skipping insertion in model container [2022-12-06 05:24:06,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:24:06" (3/3) ... [2022-12-06 05:24:06,672 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-12-06 05:24:06,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:24:06,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:24:06,686 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:24:06,756 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 05:24:06,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 234 transitions, 492 flow [2022-12-06 05:24:06,879 INFO L130 PetriNetUnfolder]: 25/231 cut-off events. [2022-12-06 05:24:06,880 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:24:06,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 231 events. 25/231 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 297 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-12-06 05:24:06,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 234 transitions, 492 flow [2022-12-06 05:24:06,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 221 transitions, 460 flow [2022-12-06 05:24:06,895 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:06,911 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 221 transitions, 460 flow [2022-12-06 05:24:06,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 221 transitions, 460 flow [2022-12-06 05:24:06,972 INFO L130 PetriNetUnfolder]: 25/221 cut-off events. [2022-12-06 05:24:06,973 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:24:06,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 221 events. 25/221 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 296 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-12-06 05:24:06,980 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 221 transitions, 460 flow [2022-12-06 05:24:06,980 INFO L188 LiptonReduction]: Number of co-enabled transitions 6720 [2022-12-06 05:24:14,522 INFO L203 LiptonReduction]: Total number of compositions: 188 [2022-12-06 05:24:14,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:24:14,539 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;@6330ef9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:24:14,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 05:24:14,555 INFO L130 PetriNetUnfolder]: 8/33 cut-off events. [2022-12-06 05:24:14,555 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:24:14,556 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:14,556 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] [2022-12-06 05:24:14,556 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 05:24:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 419614350, now seen corresponding path program 1 times [2022-12-06 05:24:14,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:14,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125671868] [2022-12-06 05:24:14,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:14,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:14,951 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 05:24:14,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:14,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125671868] [2022-12-06 05:24:14,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125671868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:14,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:14,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:24:14,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601985186] [2022-12-06 05:24:14,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:14,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:24:14,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:14,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:24:14,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:24:14,980 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 34 [2022-12-06 05:24:14,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 86 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 05:24:14,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:14,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 34 [2022-12-06 05:24:14,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:15,168 INFO L130 PetriNetUnfolder]: 961/1269 cut-off events. [2022-12-06 05:24:15,168 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-12-06 05:24:15,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2614 conditions, 1269 events. 961/1269 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4445 event pairs, 307 based on Foata normal form. 0/873 useless extension candidates. Maximal degree in co-relation 2225. Up to 742 conditions per place. [2022-12-06 05:24:15,176 INFO L137 encePairwiseOnDemand]: 29/34 looper letters, 42 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2022-12-06 05:24:15,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 49 transitions, 214 flow [2022-12-06 05:24:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:24:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:24:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2022-12-06 05:24:15,185 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4338235294117647 [2022-12-06 05:24:15,186 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 86 flow. Second operand 4 states and 59 transitions. [2022-12-06 05:24:15,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 49 transitions, 214 flow [2022-12-06 05:24:15,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 198 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 05:24:15,191 INFO L231 Difference]: Finished difference. Result has 35 places, 35 transitions, 95 flow [2022-12-06 05:24:15,192 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2022-12-06 05:24:15,194 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2022-12-06 05:24:15,195 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:15,195 INFO L89 Accepts]: Start accepts. Operand has 35 places, 35 transitions, 95 flow [2022-12-06 05:24:15,197 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:15,197 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:15,198 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 35 transitions, 95 flow [2022-12-06 05:24:15,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 35 transitions, 95 flow [2022-12-06 05:24:15,229 INFO L130 PetriNetUnfolder]: 8/35 cut-off events. [2022-12-06 05:24:15,229 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:24:15,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 35 events. 8/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2022-12-06 05:24:15,229 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 35 transitions, 95 flow [2022-12-06 05:24:15,230 INFO L188 LiptonReduction]: Number of co-enabled transitions 396 [2022-12-06 05:24:15,308 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:24:15,310 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 114 [2022-12-06 05:24:15,310 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 95 flow [2022-12-06 05:24:15,310 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 05:24:15,310 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:15,310 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] [2022-12-06 05:24:15,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:24:15,310 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 05:24:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash -552178727, now seen corresponding path program 1 times [2022-12-06 05:24:15,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:15,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963799095] [2022-12-06 05:24:15,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:15,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:15,534 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 05:24:15,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:15,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963799095] [2022-12-06 05:24:15,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963799095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:15,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:15,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:24:15,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290184734] [2022-12-06 05:24:15,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:15,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:24:15,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:15,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:24:15,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:24:15,537 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 35 [2022-12-06 05:24:15,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 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 05:24:15,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:15,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 35 [2022-12-06 05:24:15,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:15,710 INFO L130 PetriNetUnfolder]: 962/1272 cut-off events. [2022-12-06 05:24:15,711 INFO L131 PetriNetUnfolder]: For 230/230 co-relation queries the response was YES. [2022-12-06 05:24:15,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 1272 events. 962/1272 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4300 event pairs, 405 based on Foata normal form. 1/977 useless extension candidates. Maximal degree in co-relation 696. Up to 1053 conditions per place. [2022-12-06 05:24:15,717 INFO L137 encePairwiseOnDemand]: 30/35 looper letters, 44 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2022-12-06 05:24:15,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 229 flow [2022-12-06 05:24:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:15,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2022-12-06 05:24:15,718 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.37142857142857144 [2022-12-06 05:24:15,718 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 95 flow. Second operand 5 states and 65 transitions. [2022-12-06 05:24:15,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 229 flow [2022-12-06 05:24:15,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 05:24:15,721 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 108 flow [2022-12-06 05:24:15,721 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2022-12-06 05:24:15,721 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2022-12-06 05:24:15,721 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:15,721 INFO L89 Accepts]: Start accepts. Operand has 39 places, 36 transitions, 108 flow [2022-12-06 05:24:15,722 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:15,723 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:15,723 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 36 transitions, 108 flow [2022-12-06 05:24:15,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 36 transitions, 108 flow [2022-12-06 05:24:15,727 INFO L130 PetriNetUnfolder]: 8/36 cut-off events. [2022-12-06 05:24:15,727 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:24:15,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 36 events. 8/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. [2022-12-06 05:24:15,727 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 36 transitions, 108 flow [2022-12-06 05:24:15,727 INFO L188 LiptonReduction]: Number of co-enabled transitions 396 [2022-12-06 05:24:16,820 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:24:16,821 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1100 [2022-12-06 05:24:16,821 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 104 flow [2022-12-06 05:24:16,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 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 05:24:16,821 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:16,822 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] [2022-12-06 05:24:16,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 05:24:16,822 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 05:24:16,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:16,822 INFO L85 PathProgramCache]: Analyzing trace with hash -166645981, now seen corresponding path program 1 times [2022-12-06 05:24:16,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:16,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852176508] [2022-12-06 05:24:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:16,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:24:16,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:16,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852176508] [2022-12-06 05:24:16,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852176508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:16,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:16,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:24:16,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651249311] [2022-12-06 05:24:16,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:16,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:24:16,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:16,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:24:16,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:24:16,893 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 35 [2022-12-06 05:24:16,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 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 05:24:16,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:16,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 35 [2022-12-06 05:24:16,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:17,071 INFO L130 PetriNetUnfolder]: 1187/1583 cut-off events. [2022-12-06 05:24:17,071 INFO L131 PetriNetUnfolder]: For 421/509 co-relation queries the response was YES. [2022-12-06 05:24:17,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3736 conditions, 1583 events. 1187/1583 cut-off events. For 421/509 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5780 event pairs, 410 based on Foata normal form. 88/1349 useless extension candidates. Maximal degree in co-relation 3713. Up to 1021 conditions per place. [2022-12-06 05:24:17,079 INFO L137 encePairwiseOnDemand]: 29/35 looper letters, 47 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2022-12-06 05:24:17,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 55 transitions, 267 flow [2022-12-06 05:24:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2022-12-06 05:24:17,081 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.38857142857142857 [2022-12-06 05:24:17,081 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 104 flow. Second operand 5 states and 68 transitions. [2022-12-06 05:24:17,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 55 transitions, 267 flow [2022-12-06 05:24:17,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 55 transitions, 251 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-12-06 05:24:17,085 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 122 flow [2022-12-06 05:24:17,085 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2022-12-06 05:24:17,086 INFO L294 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2022-12-06 05:24:17,086 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:17,086 INFO L89 Accepts]: Start accepts. Operand has 40 places, 38 transitions, 122 flow [2022-12-06 05:24:17,088 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:17,088 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:17,089 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 38 transitions, 122 flow [2022-12-06 05:24:17,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions, 122 flow [2022-12-06 05:24:17,093 INFO L130 PetriNetUnfolder]: 10/41 cut-off events. [2022-12-06 05:24:17,094 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:24:17,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 41 events. 10/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 53. Up to 5 conditions per place. [2022-12-06 05:24:17,094 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 38 transitions, 122 flow [2022-12-06 05:24:17,094 INFO L188 LiptonReduction]: Number of co-enabled transitions 430 [2022-12-06 05:24:20,218 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 05:24:20,220 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 05:24:20,221 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 05:24:20,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 05:24:20,222 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 05:24:20,224 INFO L158 Benchmark]: Toolchain (without parser) took 14603.92ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 170.5MB in the beginning and 115.0MB in the end (delta: 55.5MB). Peak memory consumption was 171.1MB. Max. memory is 8.0GB. [2022-12-06 05:24:20,224 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:24:20,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.99ms. Allocated memory is still 195.0MB. Free memory was 170.3MB in the beginning and 157.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 05:24:20,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.87ms. Allocated memory is still 195.0MB. Free memory was 157.2MB in the beginning and 154.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:24:20,231 INFO L158 Benchmark]: Boogie Preprocessor took 39.34ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 153.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:24:20,231 INFO L158 Benchmark]: RCFGBuilder took 686.75ms. Allocated memory is still 195.0MB. Free memory was 152.5MB in the beginning and 116.3MB in the end (delta: 36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-12-06 05:24:20,231 INFO L158 Benchmark]: TraceAbstraction took 13557.80ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 115.8MB in the beginning and 115.0MB in the end (delta: 765.4kB). Peak memory consumption was 116.6MB. Max. memory is 8.0GB. [2022-12-06 05:24:20,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 260.99ms. Allocated memory is still 195.0MB. Free memory was 170.3MB in the beginning and 157.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.87ms. Allocated memory is still 195.0MB. Free memory was 157.2MB in the beginning and 154.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.34ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 153.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 686.75ms. Allocated memory is still 195.0MB. Free memory was 152.5MB in the beginning and 116.3MB in the end (delta: 36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 13557.80ms. Allocated memory was 195.0MB in the beginning and 282.1MB in the end (delta: 87.0MB). Free memory was 115.8MB in the beginning and 115.0MB in the end (delta: 765.4kB). Peak memory consumption was 116.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 206 PlacesBefore, 36 PlacesAfterwards, 221 TransitionsBefore, 34 TransitionsAfterwards, 6720 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 100 TrivialYvCompositions, 70 ConcurrentYvCompositions, 17 ChoiceCompositions, 188 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4753, independent: 4719, independent conditional: 4719, independent unconditional: 0, dependent: 34, dependent conditional: 34, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4753, independent: 4719, independent conditional: 0, independent unconditional: 4719, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4753, independent: 4719, independent conditional: 0, independent unconditional: 4719, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4753, independent: 4719, independent conditional: 0, independent unconditional: 4719, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4299, independent: 4273, independent conditional: 0, independent unconditional: 4273, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4299, independent: 4273, independent conditional: 0, independent unconditional: 4273, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4753, independent: 446, independent conditional: 0, independent unconditional: 446, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 4299, unknown conditional: 0, unknown unconditional: 4299] , Statistics on independence cache: Total cache size (in pairs): 7846, Positive cache size: 7820, Positive conditional cache size: 0, Positive unconditional cache size: 7820, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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: 0.1s, 35 PlacesBefore, 35 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 396 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51, independent: 43, independent conditional: 43, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 51, independent: 43, independent conditional: 23, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 51, independent: 43, independent conditional: 23, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 51, independent: 43, independent conditional: 23, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, independent: 31, independent conditional: 21, independent unconditional: 10, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, independent: 12, independent conditional: 2, independent unconditional: 10, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 35, unknown conditional: 21, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 31, Positive conditional cache size: 21, Positive unconditional cache size: 10, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 38 PlacesBefore, 37 PlacesAfterwards, 36 TransitionsBefore, 35 TransitionsAfterwards, 396 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, independent: 20, independent conditional: 20, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 28, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, 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: 28, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 31, Positive conditional cache size: 21, Positive unconditional cache size: 10, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 40 PlacesBefore, 39 PlacesAfterwards, 38 TransitionsBefore, 36 TransitionsAfterwards, 430 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, independent: 43, independent conditional: 43, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 52, independent: 43, independent conditional: 23, independent unconditional: 20, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 52, independent: 43, independent conditional: 6, independent unconditional: 37, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 52, independent: 43, independent conditional: 6, independent unconditional: 37, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 20, independent conditional: 4, independent unconditional: 16, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, independent: 23, independent conditional: 2, independent unconditional: 21, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 21, unknown conditional: 5, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 51, Positive conditional cache size: 25, Positive unconditional cache size: 26, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 05:24:20,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...