/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 05:00:08,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 05:00:08,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 05:00:08,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 05:00:08,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 05:00:08,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 05:00:08,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 05:00:08,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 05:00:08,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 05:00:08,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 05:00:08,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 05:00:08,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 05:00:08,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 05:00:08,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 05:00:08,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 05:00:08,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 05:00:08,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 05:00:08,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 05:00:08,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 05:00:08,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 05:00:08,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 05:00:08,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 05:00:08,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 05:00:08,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 05:00:08,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 05:00:08,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 05:00:08,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 05:00:08,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 05:00:08,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 05:00:08,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 05:00:08,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 05:00:08,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 05:00:08,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 05:00:08,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 05:00:08,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 05:00:08,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 05:00:08,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 05:00:08,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 05:00:08,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 05:00:08,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 05:00:08,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 05:00:08,573 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-VariableLbe.epf [2023-01-28 05:00:08,588 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 05:00:08,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 05:00:08,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 05:00:08,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 05:00:08,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 05:00:08,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 05:00:08,590 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 05:00:08,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 05:00:08,590 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 05:00:08,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 05:00:08,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 05:00:08,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 05:00:08,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 05:00:08,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 05:00:08,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 05:00:08,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 05:00:08,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 05:00:08,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 05:00:08,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 05:00:08,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 05:00:08,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 05:00:08,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 05:00:08,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 05:00:08,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 05:00:08,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 05:00:08,593 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 05:00:08,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 05:00:08,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 05:00:08,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 05:00:08,757 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 05:00:08,758 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 05:00:08,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2023-01-28 05:00:09,685 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 05:00:09,838 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 05:00:09,838 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2023-01-28 05:00:09,842 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa89d0341/a4438d82dca24ea3a3db498e0d2e3cc3/FLAG7f4a3f9f1 [2023-01-28 05:00:09,854 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa89d0341/a4438d82dca24ea3a3db498e0d2e3cc3 [2023-01-28 05:00:09,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 05:00:09,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 05:00:09,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 05:00:09,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 05:00:09,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 05:00:09,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 05:00:09" (1/1) ... [2023-01-28 05:00:09,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eba3a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:09, skipping insertion in model container [2023-01-28 05:00:09,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 05:00:09" (1/1) ... [2023-01-28 05:00:09,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 05:00:09,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 05:00:10,004 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2023-01-28 05:00:10,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 05:00:10,015 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 05:00:10,029 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2023-01-28 05:00:10,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 05:00:10,040 INFO L208 MainTranslator]: Completed translation [2023-01-28 05:00:10,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10 WrapperNode [2023-01-28 05:00:10,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 05:00:10,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 05:00:10,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 05:00:10,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 05:00:10,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,067 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 200 [2023-01-28 05:00:10,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 05:00:10,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 05:00:10,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 05:00:10,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 05:00:10,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 05:00:10,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 05:00:10,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 05:00:10,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 05:00:10,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (1/1) ... [2023-01-28 05:00:10,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 05:00:10,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:10,132 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) [2023-01-28 05:00:10,141 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 [2023-01-28 05:00:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 05:00:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 05:00:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 05:00:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 05:00:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 05:00:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 05:00:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 05:00:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 05:00:10,168 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 05:00:10,256 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 05:00:10,261 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 05:00:10,576 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 05:00:10,583 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 05:00:10,583 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-01-28 05:00:10,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 05:00:10 BoogieIcfgContainer [2023-01-28 05:00:10,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 05:00:10,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 05:00:10,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 05:00:10,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 05:00:10,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 05:00:09" (1/3) ... [2023-01-28 05:00:10,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 05:00:10, skipping insertion in model container [2023-01-28 05:00:10,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:00:10" (2/3) ... [2023-01-28 05:00:10,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 05:00:10, skipping insertion in model container [2023-01-28 05:00:10,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 05:00:10" (3/3) ... [2023-01-28 05:00:10,590 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2023-01-28 05:00:10,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 05:00:10,602 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 05:00:10,602 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 05:00:10,662 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 05:00:10,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 272 transitions, 568 flow [2023-01-28 05:00:10,789 INFO L130 PetriNetUnfolder]: 25/269 cut-off events. [2023-01-28 05:00:10,789 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 05:00:10,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 269 events. 25/269 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 186 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2023-01-28 05:00:10,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 272 transitions, 568 flow [2023-01-28 05:00:10,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 259 transitions, 536 flow [2023-01-28 05:00:10,805 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 05:00:10,820 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 259 transitions, 536 flow [2023-01-28 05:00:10,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 259 transitions, 536 flow [2023-01-28 05:00:10,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 259 transitions, 536 flow [2023-01-28 05:00:10,867 INFO L130 PetriNetUnfolder]: 25/259 cut-off events. [2023-01-28 05:00:10,867 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 05:00:10,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 259 events. 25/259 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 184 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2023-01-28 05:00:10,871 INFO L119 LiptonReduction]: Number of co-enabled transitions 2184 [2023-01-28 05:00:16,536 INFO L134 LiptonReduction]: Checked pairs total: 4237 [2023-01-28 05:00:16,536 INFO L136 LiptonReduction]: Total number of compositions: 267 [2023-01-28 05:00:16,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 05:00:16,558 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@330202e9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 05:00:16,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 05:00:16,565 INFO L130 PetriNetUnfolder]: 7/35 cut-off events. [2023-01-28 05:00:16,565 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 05:00:16,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:16,566 INFO L208 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] [2023-01-28 05:00:16,567 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)] === [2023-01-28 05:00:16,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1534120368, now seen corresponding path program 1 times [2023-01-28 05:00:16,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:16,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024207137] [2023-01-28 05:00:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:16,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:00:16,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:16,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024207137] [2023-01-28 05:00:16,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024207137] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:00:16,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 05:00:16,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 05:00:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122453159] [2023-01-28 05:00:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:00:16,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 05:00:17,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:17,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 05:00:17,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 05:00:17,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 539 [2023-01-28 05:00:17,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2023-01-28 05:00:17,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:17,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 539 [2023-01-28 05:00:17,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:17,317 INFO L130 PetriNetUnfolder]: 1632/2322 cut-off events. [2023-01-28 05:00:17,317 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2023-01-28 05:00:17,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4748 conditions, 2322 events. 1632/2322 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10376 event pairs, 885 based on Foata normal form. 2/1550 useless extension candidates. Maximal degree in co-relation 1294. Up to 755 conditions per place. [2023-01-28 05:00:17,327 INFO L137 encePairwiseOnDemand]: 529/539 looper letters, 26 selfloop transitions, 8 changer transitions 56/96 dead transitions. [2023-01-28 05:00:17,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 96 transitions, 426 flow [2023-01-28 05:00:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 05:00:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 05:00:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1047 transitions. [2023-01-28 05:00:17,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38849721706864565 [2023-01-28 05:00:17,345 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1047 transitions. [2023-01-28 05:00:17,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1047 transitions. [2023-01-28 05:00:17,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:17,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1047 transitions. [2023-01-28 05:00:17,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.4) internal successors, (1047), 5 states have internal predecessors, (1047), 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) [2023-01-28 05:00:17,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 539.0) internal successors, (3234), 6 states have internal predecessors, (3234), 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) [2023-01-28 05:00:17,365 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 539.0) internal successors, (3234), 6 states have internal predecessors, (3234), 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) [2023-01-28 05:00:17,366 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 90 flow. Second operand 5 states and 1047 transitions. [2023-01-28 05:00:17,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 96 transitions, 426 flow [2023-01-28 05:00:17,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 96 transitions, 390 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 05:00:17,373 INFO L231 Difference]: Finished difference. Result has 40 places, 40 transitions, 130 flow [2023-01-28 05:00:17,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=40, PETRI_TRANSITIONS=40} [2023-01-28 05:00:17,377 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-01-28 05:00:17,377 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 40 transitions, 130 flow [2023-01-28 05:00:17,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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) [2023-01-28 05:00:17,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:17,378 INFO L208 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] [2023-01-28 05:00:17,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 05:00:17,379 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)] === [2023-01-28 05:00:17,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash -432182153, now seen corresponding path program 1 times [2023-01-28 05:00:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:17,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047542304] [2023-01-28 05:00:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:17,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:17,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:17,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047542304] [2023-01-28 05:00:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047542304] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:17,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280325901] [2023-01-28 05:00:17,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:17,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:17,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:17,518 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) [2023-01-28 05:00:17,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 05:00:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:17,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-28 05:00:17,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:17,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:00:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:17,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280325901] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:17,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 05:00:17,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-01-28 05:00:17,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658674684] [2023-01-28 05:00:17,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:00:17,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 05:00:17,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:17,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 05:00:17,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-01-28 05:00:17,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 539 [2023-01-28 05:00:17,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 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) [2023-01-28 05:00:17,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:17,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 539 [2023-01-28 05:00:17,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:17,827 INFO L130 PetriNetUnfolder]: 757/1100 cut-off events. [2023-01-28 05:00:17,827 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-01-28 05:00:17,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 1100 events. 757/1100 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4295 event pairs, 239 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 2201. Up to 543 conditions per place. [2023-01-28 05:00:17,833 INFO L137 encePairwiseOnDemand]: 533/539 looper letters, 43 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2023-01-28 05:00:17,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 252 flow [2023-01-28 05:00:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 05:00:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 05:00:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 971 transitions. [2023-01-28 05:00:17,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3602968460111317 [2023-01-28 05:00:17,835 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 971 transitions. [2023-01-28 05:00:17,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 971 transitions. [2023-01-28 05:00:17,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:17,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 971 transitions. [2023-01-28 05:00:17,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 194.2) internal successors, (971), 5 states have internal predecessors, (971), 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) [2023-01-28 05:00:17,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 539.0) internal successors, (3234), 6 states have internal predecessors, (3234), 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) [2023-01-28 05:00:17,841 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 539.0) internal successors, (3234), 6 states have internal predecessors, (3234), 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) [2023-01-28 05:00:17,841 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 130 flow. Second operand 5 states and 971 transitions. [2023-01-28 05:00:17,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 252 flow [2023-01-28 05:00:17,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 52 transitions, 234 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-28 05:00:17,843 INFO L231 Difference]: Finished difference. Result has 41 places, 41 transitions, 135 flow [2023-01-28 05:00:17,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=41, PETRI_TRANSITIONS=41} [2023-01-28 05:00:17,843 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-01-28 05:00:17,843 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 41 transitions, 135 flow [2023-01-28 05:00:17,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 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) [2023-01-28 05:00:17,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:17,844 INFO L208 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] [2023-01-28 05:00:17,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:18,053 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 [2023-01-28 05:00:18,053 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)] === [2023-01-28 05:00:18,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:18,054 INFO L85 PathProgramCache]: Analyzing trace with hash 260537364, now seen corresponding path program 1 times [2023-01-28 05:00:18,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:18,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933289840] [2023-01-28 05:00:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:18,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:18,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:18,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933289840] [2023-01-28 05:00:18,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933289840] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:18,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960299712] [2023-01-28 05:00:18,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:18,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:18,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:18,214 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) [2023-01-28 05:00:18,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 05:00:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:18,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 05:00:18,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:18,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:00:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:18,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960299712] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:18,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 05:00:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2023-01-28 05:00:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3397459] [2023-01-28 05:00:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:00:18,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 05:00:18,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 05:00:18,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-01-28 05:00:18,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 539 [2023-01-28 05:00:18,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 41 transitions, 135 flow. Second operand has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-01-28 05:00:18,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:18,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 539 [2023-01-28 05:00:18,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:18,731 INFO L130 PetriNetUnfolder]: 1273/1850 cut-off events. [2023-01-28 05:00:18,731 INFO L131 PetriNetUnfolder]: For 938/1158 co-relation queries the response was YES. [2023-01-28 05:00:18,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4434 conditions, 1850 events. 1273/1850 cut-off events. For 938/1158 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8112 event pairs, 323 based on Foata normal form. 220/1854 useless extension candidates. Maximal degree in co-relation 4387. Up to 673 conditions per place. [2023-01-28 05:00:18,739 INFO L137 encePairwiseOnDemand]: 530/539 looper letters, 95 selfloop transitions, 15 changer transitions 0/112 dead transitions. [2023-01-28 05:00:18,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 112 transitions, 568 flow [2023-01-28 05:00:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 05:00:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 05:00:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1677 transitions. [2023-01-28 05:00:18,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34570191713048853 [2023-01-28 05:00:18,743 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1677 transitions. [2023-01-28 05:00:18,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1677 transitions. [2023-01-28 05:00:18,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:18,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1677 transitions. [2023-01-28 05:00:18,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 186.33333333333334) internal successors, (1677), 9 states have internal predecessors, (1677), 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) [2023-01-28 05:00:18,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 539.0) internal successors, (5390), 10 states have internal predecessors, (5390), 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) [2023-01-28 05:00:18,753 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 539.0) internal successors, (5390), 10 states have internal predecessors, (5390), 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) [2023-01-28 05:00:18,753 INFO L175 Difference]: Start difference. First operand has 41 places, 41 transitions, 135 flow. Second operand 9 states and 1677 transitions. [2023-01-28 05:00:18,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 112 transitions, 568 flow [2023-01-28 05:00:18,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 112 transitions, 552 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 05:00:18,755 INFO L231 Difference]: Finished difference. Result has 51 places, 52 transitions, 213 flow [2023-01-28 05:00:18,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=213, PETRI_PLACES=51, PETRI_TRANSITIONS=52} [2023-01-28 05:00:18,756 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 12 predicate places. [2023-01-28 05:00:18,756 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 52 transitions, 213 flow [2023-01-28 05:00:18,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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) [2023-01-28 05:00:18,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:18,757 INFO L208 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] [2023-01-28 05:00:18,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:18,964 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,SelfDestructingSolverStorable2 [2023-01-28 05:00:18,965 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)] === [2023-01-28 05:00:18,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash -316438106, now seen corresponding path program 2 times [2023-01-28 05:00:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087576093] [2023-01-28 05:00:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:19,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:19,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:19,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087576093] [2023-01-28 05:00:19,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087576093] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:19,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664309497] [2023-01-28 05:00:19,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 05:00:19,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:19,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:19,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:00:19,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 05:00:19,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 05:00:19,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:00:19,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2023-01-28 05:00:19,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:19,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 05:00:19,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664309497] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:00:19,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 05:00:19,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-01-28 05:00:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929795941] [2023-01-28 05:00:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:00:19,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 05:00:19,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 05:00:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-01-28 05:00:19,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 539 [2023-01-28 05:00:19,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 52 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 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) [2023-01-28 05:00:19,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:19,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 539 [2023-01-28 05:00:19,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:19,516 INFO L130 PetriNetUnfolder]: 2209/3209 cut-off events. [2023-01-28 05:00:19,516 INFO L131 PetriNetUnfolder]: For 2718/3098 co-relation queries the response was YES. [2023-01-28 05:00:19,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9216 conditions, 3209 events. 2209/3209 cut-off events. For 2718/3098 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 14882 event pairs, 889 based on Foata normal form. 381/3584 useless extension candidates. Maximal degree in co-relation 9164. Up to 1821 conditions per place. [2023-01-28 05:00:19,534 INFO L137 encePairwiseOnDemand]: 532/539 looper letters, 97 selfloop transitions, 8 changer transitions 11/118 dead transitions. [2023-01-28 05:00:19,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 118 transitions, 701 flow [2023-01-28 05:00:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 05:00:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 05:00:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1400 transitions. [2023-01-28 05:00:19,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4329004329004329 [2023-01-28 05:00:19,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1400 transitions. [2023-01-28 05:00:19,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1400 transitions. [2023-01-28 05:00:19,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:19,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1400 transitions. [2023-01-28 05:00:19,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 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) [2023-01-28 05:00:19,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 539.0) internal successors, (3773), 7 states have internal predecessors, (3773), 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) [2023-01-28 05:00:19,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 539.0) internal successors, (3773), 7 states have internal predecessors, (3773), 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) [2023-01-28 05:00:19,544 INFO L175 Difference]: Start difference. First operand has 51 places, 52 transitions, 213 flow. Second operand 6 states and 1400 transitions. [2023-01-28 05:00:19,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 118 transitions, 701 flow [2023-01-28 05:00:19,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 118 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 05:00:19,557 INFO L231 Difference]: Finished difference. Result has 58 places, 58 transitions, 283 flow [2023-01-28 05:00:19,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=58, PETRI_TRANSITIONS=58} [2023-01-28 05:00:19,559 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 19 predicate places. [2023-01-28 05:00:19,559 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 58 transitions, 283 flow [2023-01-28 05:00:19,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 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) [2023-01-28 05:00:19,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:19,559 INFO L208 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] [2023-01-28 05:00:19,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:19,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:19,767 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)] === [2023-01-28 05:00:19,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2030662522, now seen corresponding path program 3 times [2023-01-28 05:00:19,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:19,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599460183] [2023-01-28 05:00:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:19,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:19,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599460183] [2023-01-28 05:00:19,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599460183] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033697931] [2023-01-28 05:00:19,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 05:00:19,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:19,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:19,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:00:19,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 05:00:20,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-28 05:00:20,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:00:20,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2023-01-28 05:00:20,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:20,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:20,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 05:00:20,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033697931] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:00:20,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 05:00:20,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-01-28 05:00:20,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002792061] [2023-01-28 05:00:20,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:00:20,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 05:00:20,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:20,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 05:00:20,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-01-28 05:00:20,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 539 [2023-01-28 05:00:20,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 58 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 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) [2023-01-28 05:00:20,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:20,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 539 [2023-01-28 05:00:20,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:20,455 INFO L130 PetriNetUnfolder]: 2623/3817 cut-off events. [2023-01-28 05:00:20,455 INFO L131 PetriNetUnfolder]: For 5080/5532 co-relation queries the response was YES. [2023-01-28 05:00:20,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12088 conditions, 3817 events. 2623/3817 cut-off events. For 5080/5532 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 18769 event pairs, 1005 based on Foata normal form. 453/4264 useless extension candidates. Maximal degree in co-relation 12059. Up to 1771 conditions per place. [2023-01-28 05:00:20,477 INFO L137 encePairwiseOnDemand]: 532/539 looper letters, 94 selfloop transitions, 15 changer transitions 11/122 dead transitions. [2023-01-28 05:00:20,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 122 transitions, 781 flow [2023-01-28 05:00:20,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 05:00:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 05:00:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1409 transitions. [2023-01-28 05:00:20,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4356833642547928 [2023-01-28 05:00:20,480 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1409 transitions. [2023-01-28 05:00:20,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1409 transitions. [2023-01-28 05:00:20,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:20,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1409 transitions. [2023-01-28 05:00:20,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.83333333333334) internal successors, (1409), 6 states have internal predecessors, (1409), 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) [2023-01-28 05:00:20,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 539.0) internal successors, (3773), 7 states have internal predecessors, (3773), 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) [2023-01-28 05:00:20,486 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 539.0) internal successors, (3773), 7 states have internal predecessors, (3773), 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) [2023-01-28 05:00:20,486 INFO L175 Difference]: Start difference. First operand has 58 places, 58 transitions, 283 flow. Second operand 6 states and 1409 transitions. [2023-01-28 05:00:20,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 122 transitions, 781 flow [2023-01-28 05:00:20,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 122 transitions, 766 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-01-28 05:00:20,507 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 398 flow [2023-01-28 05:00:20,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-01-28 05:00:20,507 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 25 predicate places. [2023-01-28 05:00:20,507 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 398 flow [2023-01-28 05:00:20,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 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) [2023-01-28 05:00:20,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:20,508 INFO L208 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] [2023-01-28 05:00:20,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:20,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:20,714 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)] === [2023-01-28 05:00:20,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1967518296, now seen corresponding path program 4 times [2023-01-28 05:00:20,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:20,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529962298] [2023-01-28 05:00:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:20,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:20,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529962298] [2023-01-28 05:00:20,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529962298] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:20,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217712889] [2023-01-28 05:00:20,823 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 05:00:20,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:20,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:20,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:00:20,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 05:00:20,905 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 05:00:20,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:00:20,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-28 05:00:20,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:20,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:00:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:21,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217712889] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:00:21,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:00:21,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2023-01-28 05:00:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370073854] [2023-01-28 05:00:21,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:00:21,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-28 05:00:21,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:21,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-28 05:00:21,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-01-28 05:00:21,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 539 [2023-01-28 05:00:21,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 398 flow. Second operand has 13 states, 13 states have (on average 173.3846153846154) internal successors, (2254), 13 states have internal predecessors, (2254), 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) [2023-01-28 05:00:21,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:21,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 539 [2023-01-28 05:00:21,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:21,920 INFO L130 PetriNetUnfolder]: 4349/6260 cut-off events. [2023-01-28 05:00:21,921 INFO L131 PetriNetUnfolder]: For 12447/12447 co-relation queries the response was YES. [2023-01-28 05:00:21,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20966 conditions, 6260 events. 4349/6260 cut-off events. For 12447/12447 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 30578 event pairs, 70 based on Foata normal form. 16/6272 useless extension candidates. Maximal degree in co-relation 20934. Up to 1455 conditions per place. [2023-01-28 05:00:21,964 INFO L137 encePairwiseOnDemand]: 521/539 looper letters, 193 selfloop transitions, 99 changer transitions 0/292 dead transitions. [2023-01-28 05:00:21,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 292 transitions, 2084 flow [2023-01-28 05:00:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-28 05:00:21,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-01-28 05:00:21,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3949 transitions. [2023-01-28 05:00:21,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33302411873840443 [2023-01-28 05:00:21,973 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3949 transitions. [2023-01-28 05:00:21,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3949 transitions. [2023-01-28 05:00:21,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:21,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3949 transitions. [2023-01-28 05:00:21,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 179.5) internal successors, (3949), 22 states have internal predecessors, (3949), 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) [2023-01-28 05:00:21,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 539.0) internal successors, (12397), 23 states have internal predecessors, (12397), 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) [2023-01-28 05:00:21,994 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 539.0) internal successors, (12397), 23 states have internal predecessors, (12397), 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) [2023-01-28 05:00:21,994 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 398 flow. Second operand 22 states and 3949 transitions. [2023-01-28 05:00:21,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 292 transitions, 2084 flow [2023-01-28 05:00:22,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 292 transitions, 2038 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-01-28 05:00:22,053 INFO L231 Difference]: Finished difference. Result has 98 places, 141 transitions, 1316 flow [2023-01-28 05:00:22,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1316, PETRI_PLACES=98, PETRI_TRANSITIONS=141} [2023-01-28 05:00:22,055 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 59 predicate places. [2023-01-28 05:00:22,055 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 141 transitions, 1316 flow [2023-01-28 05:00:22,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 173.3846153846154) internal successors, (2254), 13 states have internal predecessors, (2254), 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) [2023-01-28 05:00:22,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:22,056 INFO L208 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] [2023-01-28 05:00:22,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:22,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:22,261 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)] === [2023-01-28 05:00:22,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:22,261 INFO L85 PathProgramCache]: Analyzing trace with hash 902285986, now seen corresponding path program 5 times [2023-01-28 05:00:22,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:22,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313704075] [2023-01-28 05:00:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:22,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:22,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:22,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313704075] [2023-01-28 05:00:22,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313704075] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:22,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526925175] [2023-01-28 05:00:22,408 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 05:00:22,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:22,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:22,411 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:00:22,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 05:00:22,519 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 05:00:22,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:00:22,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-28 05:00:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:22,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:00:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:22,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526925175] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:00:22,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:00:22,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2023-01-28 05:00:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893198533] [2023-01-28 05:00:22,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:00:22,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-28 05:00:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-28 05:00:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-01-28 05:00:22,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 539 [2023-01-28 05:00:22,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 141 transitions, 1316 flow. Second operand has 16 states, 16 states have (on average 173.125) internal successors, (2770), 16 states have internal predecessors, (2770), 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) [2023-01-28 05:00:22,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:22,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 539 [2023-01-28 05:00:22,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:24,018 INFO L130 PetriNetUnfolder]: 7600/10923 cut-off events. [2023-01-28 05:00:24,019 INFO L131 PetriNetUnfolder]: For 47770/47770 co-relation queries the response was YES. [2023-01-28 05:00:24,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45361 conditions, 10923 events. 7600/10923 cut-off events. For 47770/47770 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 58179 event pairs, 641 based on Foata normal form. 26/10948 useless extension candidates. Maximal degree in co-relation 45277. Up to 1894 conditions per place. [2023-01-28 05:00:24,086 INFO L137 encePairwiseOnDemand]: 521/539 looper letters, 285 selfloop transitions, 167 changer transitions 0/452 dead transitions. [2023-01-28 05:00:24,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 452 transitions, 4331 flow [2023-01-28 05:00:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-28 05:00:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-01-28 05:00:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3467 transitions. [2023-01-28 05:00:24,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33854115809003027 [2023-01-28 05:00:24,093 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3467 transitions. [2023-01-28 05:00:24,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3467 transitions. [2023-01-28 05:00:24,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:24,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3467 transitions. [2023-01-28 05:00:24,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 182.47368421052633) internal successors, (3467), 19 states have internal predecessors, (3467), 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) [2023-01-28 05:00:24,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 539.0) internal successors, (10780), 20 states have internal predecessors, (10780), 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) [2023-01-28 05:00:24,108 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 539.0) internal successors, (10780), 20 states have internal predecessors, (10780), 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) [2023-01-28 05:00:24,108 INFO L175 Difference]: Start difference. First operand has 98 places, 141 transitions, 1316 flow. Second operand 19 states and 3467 transitions. [2023-01-28 05:00:24,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 452 transitions, 4331 flow [2023-01-28 05:00:24,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 452 transitions, 4194 flow, removed 63 selfloop flow, removed 3 redundant places. [2023-01-28 05:00:24,568 INFO L231 Difference]: Finished difference. Result has 125 places, 247 transitions, 2987 flow [2023-01-28 05:00:24,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=1257, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2987, PETRI_PLACES=125, PETRI_TRANSITIONS=247} [2023-01-28 05:00:24,568 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 86 predicate places. [2023-01-28 05:00:24,568 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 247 transitions, 2987 flow [2023-01-28 05:00:24,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 173.125) internal successors, (2770), 16 states have internal predecessors, (2770), 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) [2023-01-28 05:00:24,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:24,569 INFO L208 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] [2023-01-28 05:00:24,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:24,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:24,775 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 05:00:24,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash 166239918, now seen corresponding path program 6 times [2023-01-28 05:00:24,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:24,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322486859] [2023-01-28 05:00:24,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:24,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:24,877 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-28 05:00:24,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:24,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322486859] [2023-01-28 05:00:24,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322486859] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:24,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285195438] [2023-01-28 05:00:24,877 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-28 05:00:24,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:24,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:24,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:00:24,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 05:00:24,970 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-01-28 05:00:24,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:00:24,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjunts are in the unsatisfiable core [2023-01-28 05:00:24,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-28 05:00:25,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 05:00:25,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285195438] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:00:25,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 05:00:25,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-01-28 05:00:25,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044299825] [2023-01-28 05:00:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:00:25,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 05:00:25,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:00:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 05:00:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-01-28 05:00:25,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 539 [2023-01-28 05:00:25,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 247 transitions, 2987 flow. Second operand has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 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) [2023-01-28 05:00:25,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:00:25,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 539 [2023-01-28 05:00:25,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:00:25,941 INFO L130 PetriNetUnfolder]: 6243/9080 cut-off events. [2023-01-28 05:00:25,941 INFO L131 PetriNetUnfolder]: For 70650/70748 co-relation queries the response was YES. [2023-01-28 05:00:25,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44789 conditions, 9080 events. 6243/9080 cut-off events. For 70650/70748 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 49714 event pairs, 1989 based on Foata normal form. 92/9160 useless extension candidates. Maximal degree in co-relation 44687. Up to 4451 conditions per place. [2023-01-28 05:00:25,997 INFO L137 encePairwiseOnDemand]: 532/539 looper letters, 203 selfloop transitions, 67 changer transitions 13/312 dead transitions. [2023-01-28 05:00:25,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 312 transitions, 4005 flow [2023-01-28 05:00:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 05:00:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 05:00:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1403 transitions. [2023-01-28 05:00:26,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43382807668521955 [2023-01-28 05:00:26,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1403 transitions. [2023-01-28 05:00:26,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1403 transitions. [2023-01-28 05:00:26,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:00:26,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1403 transitions. [2023-01-28 05:00:26,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 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) [2023-01-28 05:00:26,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 539.0) internal successors, (3773), 7 states have internal predecessors, (3773), 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) [2023-01-28 05:00:26,006 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 539.0) internal successors, (3773), 7 states have internal predecessors, (3773), 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) [2023-01-28 05:00:26,006 INFO L175 Difference]: Start difference. First operand has 125 places, 247 transitions, 2987 flow. Second operand 6 states and 1403 transitions. [2023-01-28 05:00:26,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 312 transitions, 4005 flow [2023-01-28 05:00:26,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 312 transitions, 3815 flow, removed 62 selfloop flow, removed 4 redundant places. [2023-01-28 05:00:26,412 INFO L231 Difference]: Finished difference. Result has 129 places, 251 transitions, 3091 flow [2023-01-28 05:00:26,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=539, PETRI_DIFFERENCE_MINUEND_FLOW=2848, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3091, PETRI_PLACES=129, PETRI_TRANSITIONS=251} [2023-01-28 05:00:26,412 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 90 predicate places. [2023-01-28 05:00:26,413 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 251 transitions, 3091 flow [2023-01-28 05:00:26,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 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) [2023-01-28 05:00:26,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:00:26,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:00:26,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-28 05:00:26,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:26,619 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 05:00:26,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:00:26,619 INFO L85 PathProgramCache]: Analyzing trace with hash 205007497, now seen corresponding path program 1 times [2023-01-28 05:00:26,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:00:26,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810542947] [2023-01-28 05:00:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:26,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:00:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 05:00:29,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:00:29,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810542947] [2023-01-28 05:00:29,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810542947] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:00:29,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69130780] [2023-01-28 05:00:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:00:29,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:00:29,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:00:29,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:00:29,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-28 05:00:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:00:29,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 79 conjunts are in the unsatisfiable core [2023-01-28 05:00:29,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:00:29,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,748 INFO L321 Elim1Store]: treesize reduction 49, result has 33.8 percent of original size [2023-01-28 05:00:29,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 35 [2023-01-28 05:00:29,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,851 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-01-28 05:00:29,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2023-01-28 05:00:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:29,965 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-01-28 05:00:29,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2023-01-28 05:00:30,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:30,122 INFO L321 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2023-01-28 05:00:30,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2023-01-28 05:00:30,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2023-01-28 05:00:30,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:30,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:30,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:30,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-01-28 05:00:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:31,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:31,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 05:00:31,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-01-28 05:00:31,446 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 05:00:31,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 44 [2023-01-28 05:00:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 05:00:31,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:00:50,930 INFO L321 Elim1Store]: treesize reduction 42, result has 62.5 percent of original size [2023-01-28 05:00:50,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 330 treesize of output 190 [2023-01-28 05:00:51,408 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 05:00:51,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 233057 treesize of output 224681 [2023-01-28 05:00:54,617 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 05:00:54,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36342 treesize of output 31718 [2023-01-28 05:00:57,643 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 05:00:57,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41654 treesize of output 31942 [2023-01-28 05:01:02,777 WARN L222 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 1044 DAG size of output: 1035 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-01-28 05:01:10,850 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 05:01:10,851 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 10427 treesize of output 9751 [2023-01-28 05:02:46,877 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 05:05:33,733 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 05:08:39,508 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 05:11:42,181 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 05:13:05,396 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. Received shutdown request... [2023-01-28 05:14:02,338 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 05:14:02,340 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 05:14:02,346 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 [2023-01-28 05:14:02,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-28 05:14:02,348 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 05:14:02,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-01-28 05:14:02,541 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. [2023-01-28 05:14:02,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 05:14:02,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 05:14:02,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 05:14:02,543 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2023-01-28 05:14:02,545 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 05:14:02,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 05:14:02,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 05:14:02 BasicIcfg [2023-01-28 05:14:02,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 05:14:02,549 INFO L158 Benchmark]: Toolchain (without parser) took 832691.61ms. Allocated memory was 478.2MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 440.7MB in the beginning and 468.7MB in the end (delta: -27.9MB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2023-01-28 05:14:02,549 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory is still 310.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 05:14:02,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.63ms. Allocated memory is still 478.2MB. Free memory was 440.2MB in the beginning and 428.7MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 05:14:02,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.75ms. Allocated memory is still 478.2MB. Free memory was 428.7MB in the beginning and 426.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 05:14:02,550 INFO L158 Benchmark]: Boogie Preprocessor took 31.27ms. Allocated memory is still 478.2MB. Free memory was 426.2MB in the beginning and 424.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 05:14:02,550 INFO L158 Benchmark]: RCFGBuilder took 485.66ms. Allocated memory is still 478.2MB. Free memory was 424.5MB in the beginning and 401.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-01-28 05:14:02,550 INFO L158 Benchmark]: TraceAbstraction took 831962.14ms. Allocated memory was 478.2MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 401.0MB in the beginning and 468.7MB in the end (delta: -67.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-01-28 05:14:02,552 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 362.8MB. Free memory is still 310.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 180.63ms. Allocated memory is still 478.2MB. Free memory was 440.2MB in the beginning and 428.7MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.75ms. Allocated memory is still 478.2MB. Free memory was 428.7MB in the beginning and 426.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.27ms. Allocated memory is still 478.2MB. Free memory was 426.2MB in the beginning and 424.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 485.66ms. Allocated memory is still 478.2MB. Free memory was 424.5MB in the beginning and 401.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 831962.14ms. Allocated memory was 478.2MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 401.0MB in the beginning and 468.7MB in the end (delta: -67.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 244 PlacesBefore, 39 PlacesAfterwards, 259 TransitionsBefore, 36 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 7 FixpointIterations, 165 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 45 TrivialYvCompositions, 6 ConcurrentYvCompositions, 18 ChoiceCompositions, 267 TotalNumberOfCompositions, 4237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2434, independent: 2300, independent conditional: 0, independent unconditional: 2300, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1133, independent: 1086, independent conditional: 0, independent unconditional: 1086, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2434, independent: 1214, independent conditional: 0, independent unconditional: 1214, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 1133, unknown conditional: 0, unknown unconditional: 1133] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 34 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 290 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: 831.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 719 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 719 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2977 IncrementalHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 56 mSDtfsCounter, 2977 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 286 SyntacticMatches, 8 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3091occurred in iteration=8, InterpolantAutomatonStates: 78, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 437 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 1561 SizeOfPredicates, 34 NumberOfNonLiveVariables, 2078 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 72/87 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