/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:26:19,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:26:19,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:26:19,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:26:19,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:26:19,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:26:19,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:26:19,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:26:19,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:26:19,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:26:19,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:26:19,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:26:19,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:26:19,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:26:19,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:26:19,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:26:19,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:26:19,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:26:19,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:26:19,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:26:19,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:26:19,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:26:19,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:26:19,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:26:19,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:26:19,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:26:19,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:26:19,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:26:19,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:26:19,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:26:19,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:26:19,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:26:19,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:26:19,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:26:19,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:26:19,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:26:19,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:26:19,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:26:19,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:26:19,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:26:19,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:26:19,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 19:26:19,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:26:19,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:26:19,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:26:19,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:26:19,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:26:19,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:26:19,766 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:26:19,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:26:19,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:26:19,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:26:19,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:26:19,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:26:19,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:26:19,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:26:19,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:26:19,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:26:19,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:26:19,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:26:19,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:26:19,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:26:19,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:26:19,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:26:19,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:26:19,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:26:19,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:26:20,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:26:20,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:26:20,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:26:20,142 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:26:20,142 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:26:20,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-12-12 19:26:21,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:26:21,586 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:26:21,587 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-12-12 19:26:21,593 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acc213e0/3e8fce04a60e46df83cb61d6967ad01f/FLAG9f603e82f [2022-12-12 19:26:21,603 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acc213e0/3e8fce04a60e46df83cb61d6967ad01f [2022-12-12 19:26:21,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:26:21,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:26:21,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:26:21,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:26:21,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:26:21,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660e61c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21, skipping insertion in model container [2022-12-12 19:26:21,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:26:21,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:26:21,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-12-12 19:26:21,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:26:21,771 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:26:21,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-12-12 19:26:21,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:26:21,803 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:26:21,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21 WrapperNode [2022-12-12 19:26:21,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:26:21,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:26:21,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:26:21,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:26:21,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,831 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-12-12 19:26:21,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:26:21,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:26:21,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:26:21,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:26:21,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,859 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:26:21,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:26:21,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:26:21,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:26:21,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (1/1) ... [2022-12-12 19:26:21,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:26:21,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:26:21,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 19:26:21,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 19:26:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:26:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 19:26:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 19:26:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 19:26:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 19:26:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 19:26:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 19:26:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:26:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:26:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:26:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:26:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:26:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:26:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:26:21,949 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:26:22,054 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:26:22,056 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:26:22,302 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:26:22,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:26:22,314 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:26:22,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:26:22 BoogieIcfgContainer [2022-12-12 19:26:22,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:26:22,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:26:22,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:26:22,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:26:22,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:26:21" (1/3) ... [2022-12-12 19:26:22,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e6e7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:26:22, skipping insertion in model container [2022-12-12 19:26:22,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:26:21" (2/3) ... [2022-12-12 19:26:22,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e6e7e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:26:22, skipping insertion in model container [2022-12-12 19:26:22,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:26:22" (3/3) ... [2022-12-12 19:26:22,334 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-12-12 19:26:22,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:26:22,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:26:22,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:26:22,420 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 19:26:22,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 198 flow [2022-12-12 19:26:22,497 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-12-12 19:26:22,497 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:26:22,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 2/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-12-12 19:26:22,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 87 transitions, 198 flow [2022-12-12 19:26:22,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 74 transitions, 166 flow [2022-12-12 19:26:22,507 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:26:22,524 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 166 flow [2022-12-12 19:26:22,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 166 flow [2022-12-12 19:26:22,555 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2022-12-12 19:26:22,555 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:26:22,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 74 events. 2/74 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-12-12 19:26:22,557 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 166 flow [2022-12-12 19:26:22,557 INFO L226 LiptonReduction]: Number of co-enabled transitions 270 [2022-12-12 19:26:24,872 INFO L241 LiptonReduction]: Total number of compositions: 58 [2022-12-12 19:26:24,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:26:24,892 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;@7f4c0800, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:26:24,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 19:26:24,898 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-12 19:26:24,898 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:26:24,898 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:26:24,899 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:26:24,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:26:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:26:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1936724045, now seen corresponding path program 1 times [2022-12-12 19:26:24,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:26:24,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976462421] [2022-12-12 19:26:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:26:24,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:26:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:26:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:26:26,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:26:26,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976462421] [2022-12-12 19:26:26,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976462421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:26:26,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:26:26,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:26:26,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706051325] [2022-12-12 19:26:26,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:26:26,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:26:26,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:26:26,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:26:26,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:26:26,637 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:26:26,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:26,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:26:26,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:26:26,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:26:27,091 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2022-12-12 19:26:27,091 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-12 19:26:27,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 287 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2022-12-12 19:26:27,094 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2022-12-12 19:26:27,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2022-12-12 19:26:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:26:27,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:26:27,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2022-12-12 19:26:27,104 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-12 19:26:27,108 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2022-12-12 19:26:27,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 45 transitions, 228 flow [2022-12-12 19:26:27,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 38 transitions, 191 flow [2022-12-12 19:26:27,110 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 38 transitions, 191 flow [2022-12-12 19:26:27,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:27,110 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:26:27,111 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:26:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:26:27,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:26:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:26:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1282250367, now seen corresponding path program 2 times [2022-12-12 19:26:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:26:27,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404719475] [2022-12-12 19:26:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:26:27,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:26:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:26:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:26:27,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:26:27,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404719475] [2022-12-12 19:26:27,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404719475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:26:27,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:26:27,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:26:27,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993038845] [2022-12-12 19:26:27,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:26:27,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:26:27,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:26:27,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:26:27,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:26:27,945 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:26:27,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 38 transitions, 191 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:27,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:26:27,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:26:27,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:26:28,213 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2022-12-12 19:26:28,213 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-12-12 19:26:28,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 116 events. 38/116 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 417 event pairs, 0 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 274. Up to 58 conditions per place. [2022-12-12 19:26:28,215 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 43 selfloop transitions, 7 changer transitions 15/65 dead transitions. [2022-12-12 19:26:28,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 65 transitions, 459 flow [2022-12-12 19:26:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:26:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:26:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2022-12-12 19:26:28,217 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2022-12-12 19:26:28,217 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2022-12-12 19:26:28,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 65 transitions, 459 flow [2022-12-12 19:26:28,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 50 transitions, 351 flow [2022-12-12 19:26:28,219 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 50 transitions, 351 flow [2022-12-12 19:26:28,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:28,219 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:26:28,219 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:26:28,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:26:28,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:26:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:26:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash 865163201, now seen corresponding path program 3 times [2022-12-12 19:26:28,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:26:28,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397913058] [2022-12-12 19:26:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:26:28,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:26:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:26:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:26:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:26:28,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397913058] [2022-12-12 19:26:28,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397913058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:26:28,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:26:28,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:26:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980766131] [2022-12-12 19:26:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:26:28,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:26:28,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:26:28,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:26:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:26:28,949 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:26:28,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 50 transitions, 351 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:28,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:26:28,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:26:28,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:26:29,219 INFO L130 PetriNetUnfolder]: 28/90 cut-off events. [2022-12-12 19:26:29,219 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-12 19:26:29,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 90 events. 28/90 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 270 event pairs, 0 based on Foata normal form. 1/91 useless extension candidates. Maximal degree in co-relation 283. Up to 58 conditions per place. [2022-12-12 19:26:29,220 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 33 selfloop transitions, 6 changer transitions 10/49 dead transitions. [2022-12-12 19:26:29,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 49 transitions, 443 flow [2022-12-12 19:26:29,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:26:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:26:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2022-12-12 19:26:29,223 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4479166666666667 [2022-12-12 19:26:29,224 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2022-12-12 19:26:29,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 49 transitions, 443 flow [2022-12-12 19:26:29,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 39 transitions, 351 flow [2022-12-12 19:26:29,225 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 39 transitions, 351 flow [2022-12-12 19:26:29,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:29,225 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:26:29,226 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:26:29,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:26:29,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:26:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:26:29,226 INFO L85 PathProgramCache]: Analyzing trace with hash 416011907, now seen corresponding path program 4 times [2022-12-12 19:26:29,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:26:29,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052073742] [2022-12-12 19:26:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:26:29,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:26:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:26:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:26:30,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:26:30,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052073742] [2022-12-12 19:26:30,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052073742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:26:30,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:26:30,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:26:30,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90535256] [2022-12-12 19:26:30,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:26:30,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:26:30,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:26:30,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:26:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:26:30,077 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:26:30,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 39 transitions, 351 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:30,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:26:30,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:26:30,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:26:30,468 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2022-12-12 19:26:30,468 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-12 19:26:30,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 59 events. 17/59 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 137 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 230. Up to 37 conditions per place. [2022-12-12 19:26:30,469 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 19 selfloop transitions, 5 changer transitions 19/43 dead transitions. [2022-12-12 19:26:30,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 472 flow [2022-12-12 19:26:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:26:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:26:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2022-12-12 19:26:30,471 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-12 19:26:30,471 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 16 predicate places. [2022-12-12 19:26:30,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 43 transitions, 472 flow [2022-12-12 19:26:30,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 24 transitions, 261 flow [2022-12-12 19:26:30,472 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 261 flow [2022-12-12 19:26:30,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:30,473 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:26:30,473 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:26:30,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 19:26:30,473 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:26:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:26:30,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1394667137, now seen corresponding path program 5 times [2022-12-12 19:26:30,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:26:30,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350809606] [2022-12-12 19:26:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:26:30,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:26:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:26:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:26:31,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:26:31,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350809606] [2022-12-12 19:26:31,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350809606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:26:31,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:26:31,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:26:31,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73273357] [2022-12-12 19:26:31,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:26:31,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:26:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:26:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:26:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:26:31,186 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:26:31,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 261 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:31,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:26:31,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:26:31,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:26:31,549 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2022-12-12 19:26:31,550 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-12 19:26:31,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 40 events. 8/40 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2022-12-12 19:26:31,550 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 16 selfloop transitions, 3 changer transitions 13/32 dead transitions. [2022-12-12 19:26:31,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 32 transitions, 414 flow [2022-12-12 19:26:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:26:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:26:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2022-12-12 19:26:31,552 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3229166666666667 [2022-12-12 19:26:31,553 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 19 predicate places. [2022-12-12 19:26:31,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 32 transitions, 414 flow [2022-12-12 19:26:31,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 19 transitions, 246 flow [2022-12-12 19:26:31,554 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 19 transitions, 246 flow [2022-12-12 19:26:31,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:31,554 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:26:31,554 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:26:31,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 19:26:31,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 19:26:31,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:26:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1741162521, now seen corresponding path program 6 times [2022-12-12 19:26:31,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:26:31,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341495286] [2022-12-12 19:26:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:26:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:26:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:26:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:26:32,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:26:32,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341495286] [2022-12-12 19:26:32,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341495286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:26:32,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:26:32,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 19:26:32,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943290937] [2022-12-12 19:26:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:26:32,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 19:26:32,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:26:32,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 19:26:32,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 19:26:32,280 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-12 19:26:32,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 19 transitions, 246 flow. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:32,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:26:32,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-12 19:26:32,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:26:32,513 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-12 19:26:32,514 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 19:26:32,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 21 events. 3/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 102. Up to 11 conditions per place. [2022-12-12 19:26:32,514 INFO L137 encePairwiseOnDemand]: 11/16 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-12 19:26:32,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 18 transitions, 270 flow [2022-12-12 19:26:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 19:26:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 19:26:32,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-12-12 19:26:32,516 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.19791666666666666 [2022-12-12 19:26:32,517 INFO L295 CegarLoopForPetriNet]: 26 programPoint places, 21 predicate places. [2022-12-12 19:26:32,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 18 transitions, 270 flow [2022-12-12 19:26:32,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 19:26:32,517 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 19:26:32,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:26:32,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 19:26:32,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 19:26:32,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 19:26:32,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 19:26:32,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 19:26:32,521 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2022-12-12 19:26:32,524 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:26:32,524 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:26:32,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:26:32 BasicIcfg [2022-12-12 19:26:32,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:26:32,535 INFO L158 Benchmark]: Toolchain (without parser) took 10925.50ms. Allocated memory was 200.3MB in the beginning and 402.7MB in the end (delta: 202.4MB). Free memory was 177.8MB in the beginning and 335.7MB in the end (delta: -158.0MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2022-12-12 19:26:32,535 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 176.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:26:32,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.27ms. Allocated memory is still 200.3MB. Free memory was 177.8MB in the beginning and 167.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-12 19:26:32,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.61ms. Allocated memory is still 200.3MB. Free memory was 166.5MB in the beginning and 165.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 19:26:32,536 INFO L158 Benchmark]: Boogie Preprocessor took 30.11ms. Allocated memory is still 200.3MB. Free memory was 165.4MB in the beginning and 163.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 19:26:32,536 INFO L158 Benchmark]: RCFGBuilder took 453.13ms. Allocated memory is still 200.3MB. Free memory was 163.9MB in the beginning and 150.8MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 19:26:32,537 INFO L158 Benchmark]: TraceAbstraction took 10212.96ms. Allocated memory was 200.3MB in the beginning and 402.7MB in the end (delta: 202.4MB). Free memory was 149.8MB in the beginning and 335.7MB in the end (delta: -186.0MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. [2022-12-12 19:26:32,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 176.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.27ms. Allocated memory is still 200.3MB. Free memory was 177.8MB in the beginning and 167.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.61ms. Allocated memory is still 200.3MB. Free memory was 166.5MB in the beginning and 165.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.11ms. Allocated memory is still 200.3MB. Free memory was 165.4MB in the beginning and 163.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 453.13ms. Allocated memory is still 200.3MB. Free memory was 163.9MB in the beginning and 150.8MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 10212.96ms. Allocated memory was 200.3MB in the beginning and 402.7MB in the end (delta: 202.4MB). Free memory was 149.8MB in the beginning and 335.7MB in the end (delta: -186.0MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 82 PlacesBefore, 26 PlacesAfterwards, 74 TransitionsBefore, 16 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 38 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 117, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 117, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 117, unknown conditional: 0, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 77]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 101 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: 10.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=351occurred in iteration=2, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 886 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 19:26:32,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...