/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/parallel-ticket-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 03:41:18,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 03:41:18,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 03:41:18,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 03:41:18,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 03:41:18,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 03:41:18,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 03:41:18,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 03:41:18,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 03:41:18,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 03:41:18,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 03:41:18,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 03:41:18,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 03:41:18,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 03:41:18,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 03:41:18,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 03:41:18,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 03:41:18,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 03:41:18,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 03:41:18,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 03:41:18,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 03:41:18,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 03:41:18,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 03:41:18,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 03:41:18,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 03:41:18,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 03:41:18,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 03:41:18,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 03:41:18,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 03:41:18,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 03:41:18,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 03:41:18,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 03:41:18,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 03:41:18,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 03:41:18,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 03:41:18,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 03:41:18,922 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 03:41:18,957 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 03:41:18,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 03:41:18,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 03:41:18,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 03:41:18,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 03:41:18,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 03:41:18,959 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 03:41:18,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 03:41:18,960 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 03:41:18,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 03:41:18,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 03:41:18,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 03:41:18,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 03:41:18,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 03:41:18,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 03:41:18,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 03:41:18,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 03:41:18,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 03:41:18,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 03:41:18,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 03:41:18,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 03:41:18,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 03:41:18,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 03:41:18,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 03:41:19,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 03:41:19,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 03:41:19,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 03:41:19,204 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 03:41:19,205 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 03:41:19,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-01-28 03:41:20,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 03:41:20,704 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 03:41:20,704 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-01-28 03:41:20,709 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095a9be0c/268ffa6fdd584696b99aae3e9366bdd1/FLAGb96e614b6 [2023-01-28 03:41:20,720 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095a9be0c/268ffa6fdd584696b99aae3e9366bdd1 [2023-01-28 03:41:20,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 03:41:20,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 03:41:20,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 03:41:20,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 03:41:20,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 03:41:20,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:20,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4cf459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20, skipping insertion in model container [2023-01-28 03:41:20,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:20,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 03:41:20,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 03:41:20,899 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/parallel-ticket-2.wvr.c[2652,2665] [2023-01-28 03:41:20,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 03:41:20,922 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 03:41:20,938 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/parallel-ticket-2.wvr.c[2652,2665] [2023-01-28 03:41:20,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 03:41:20,945 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 03:41:20,946 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 03:41:20,950 INFO L208 MainTranslator]: Completed translation [2023-01-28 03:41:20,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20 WrapperNode [2023-01-28 03:41:20,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 03:41:20,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 03:41:20,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 03:41:20,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 03:41:20,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:20,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,000 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 124 [2023-01-28 03:41:21,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 03:41:21,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 03:41:21,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 03:41:21,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 03:41:21,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 03:41:21,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 03:41:21,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 03:41:21,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 03:41:21,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (1/1) ... [2023-01-28 03:41:21,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 03:41:21,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 03:41:21,082 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 03:41:21,089 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 03:41:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 03:41:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 03:41:21,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 03:41:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 03:41:21,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 03:41:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 03:41:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 03:41:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 03:41:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 03:41:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 03:41:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 03:41:21,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 03:41:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 03:41:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 03:41:21,114 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 03:41:21,213 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 03:41:21,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 03:41:21,497 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 03:41:21,546 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 03:41:21,546 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 03:41:21,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 03:41:21 BoogieIcfgContainer [2023-01-28 03:41:21,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 03:41:21,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 03:41:21,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 03:41:21,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 03:41:21,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 03:41:20" (1/3) ... [2023-01-28 03:41:21,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f4595f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 03:41:21, skipping insertion in model container [2023-01-28 03:41:21,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 03:41:20" (2/3) ... [2023-01-28 03:41:21,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f4595f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 03:41:21, skipping insertion in model container [2023-01-28 03:41:21,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 03:41:21" (3/3) ... [2023-01-28 03:41:21,560 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2023-01-28 03:41:21,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 03:41:21,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 03:41:21,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 03:41:21,634 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 03:41:21,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 206 flow [2023-01-28 03:41:21,702 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2023-01-28 03:41:21,703 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 03:41:21,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 2/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-01-28 03:41:21,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 95 transitions, 206 flow [2023-01-28 03:41:21,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 85 transitions, 182 flow [2023-01-28 03:41:21,713 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 03:41:21,721 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 85 transitions, 182 flow [2023-01-28 03:41:21,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 85 transitions, 182 flow [2023-01-28 03:41:21,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 182 flow [2023-01-28 03:41:21,761 INFO L130 PetriNetUnfolder]: 2/85 cut-off events. [2023-01-28 03:41:21,761 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 03:41:21,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 2/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-01-28 03:41:21,763 INFO L119 LiptonReduction]: Number of co-enabled transitions 282 [2023-01-28 03:41:24,499 INFO L134 LiptonReduction]: Checked pairs total: 1334 [2023-01-28 03:41:24,499 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-01-28 03:41:24,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 03:41:24,515 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;@c524b14, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 03:41:24,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 03:41:24,521 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2023-01-28 03:41:24,522 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 03:41:24,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:41:24,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 03:41:24,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 03:41:24,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:41:24,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1313733496, now seen corresponding path program 1 times [2023-01-28 03:41:24,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:41:24,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175886520] [2023-01-28 03:41:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:41:24,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:41:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:41:25,736 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 03:41:25,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:41:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175886520] [2023-01-28 03:41:25,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175886520] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:41:25,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:41:25,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 03:41:25,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371132932] [2023-01-28 03:41:25,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:41:25,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:41:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:41:25,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:41:25,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:41:25,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2023-01-28 03:41:25,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 48 flow. Second operand has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 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 03:41:25,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:41:25,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2023-01-28 03:41:25,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:41:25,971 INFO L130 PetriNetUnfolder]: 117/235 cut-off events. [2023-01-28 03:41:25,971 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 03:41:25,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 235 events. 117/235 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 796 event pairs, 26 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 424. Up to 102 conditions per place. [2023-01-28 03:41:25,974 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 27 selfloop transitions, 5 changer transitions 18/50 dead transitions. [2023-01-28 03:41:25,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 224 flow [2023-01-28 03:41:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 03:41:25,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 03:41:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 587 transitions. [2023-01-28 03:41:25,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4341715976331361 [2023-01-28 03:41:25,998 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 587 transitions. [2023-01-28 03:41:25,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 587 transitions. [2023-01-28 03:41:26,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:41:26,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 587 transitions. [2023-01-28 03:41:26,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 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 03:41:26,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 03:41:26,011 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 03:41:26,012 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 48 flow. Second operand 8 states and 587 transitions. [2023-01-28 03:41:26,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 224 flow [2023-01-28 03:41:26,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 50 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 03:41:26,016 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 75 flow [2023-01-28 03:41:26,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=75, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2023-01-28 03:41:26,020 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2023-01-28 03:41:26,020 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 75 flow [2023-01-28 03:41:26,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 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 03:41:26,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:41:26,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 03:41:26,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 03:41:26,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 03:41:26,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:41:26,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1890157130, now seen corresponding path program 2 times [2023-01-28 03:41:26,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:41:26,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042663946] [2023-01-28 03:41:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:41:26,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:41:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:41:26,544 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 03:41:26,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:41:26,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042663946] [2023-01-28 03:41:26,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042663946] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:41:26,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:41:26,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 03:41:26,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113584109] [2023-01-28 03:41:26,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:41:26,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:41:26,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:41:26,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:41:26,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:41:26,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2023-01-28 03:41:26,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 75 flow. Second operand has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 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 03:41:26,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:41:26,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2023-01-28 03:41:26,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:41:26,685 INFO L130 PetriNetUnfolder]: 83/177 cut-off events. [2023-01-28 03:41:26,685 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-01-28 03:41:26,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 177 events. 83/177 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 556 event pairs, 32 based on Foata normal form. 1/178 useless extension candidates. Maximal degree in co-relation 440. Up to 107 conditions per place. [2023-01-28 03:41:26,688 INFO L137 encePairwiseOnDemand]: 161/169 looper letters, 26 selfloop transitions, 7 changer transitions 7/40 dead transitions. [2023-01-28 03:41:26,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 205 flow [2023-01-28 03:41:26,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 03:41:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 03:41:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 442 transitions. [2023-01-28 03:41:26,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2023-01-28 03:41:26,691 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 442 transitions. [2023-01-28 03:41:26,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 442 transitions. [2023-01-28 03:41:26,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:41:26,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 442 transitions. [2023-01-28 03:41:26,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 03:41:26,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 03:41:26,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 03:41:26,695 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 75 flow. Second operand 6 states and 442 transitions. [2023-01-28 03:41:26,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 205 flow [2023-01-28 03:41:26,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 196 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-01-28 03:41:26,698 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 99 flow [2023-01-28 03:41:26,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=99, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-01-28 03:41:26,699 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2023-01-28 03:41:26,699 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 99 flow [2023-01-28 03:41:26,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 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 03:41:26,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:41:26,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 03:41:26,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 03:41:26,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 03:41:26,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:41:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash -956925302, now seen corresponding path program 3 times [2023-01-28 03:41:26,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:41:26,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503662789] [2023-01-28 03:41:26,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:41:26,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:41:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:41:26,905 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 03:41:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:41:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503662789] [2023-01-28 03:41:26,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503662789] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:41:26,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:41:26,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 03:41:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713817640] [2023-01-28 03:41:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:41:26,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:41:26,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:41:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:41:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:41:26,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 169 [2023-01-28 03:41:26,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 03:41:26,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:41:26,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 169 [2023-01-28 03:41:26,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:41:26,976 INFO L130 PetriNetUnfolder]: 27/80 cut-off events. [2023-01-28 03:41:26,977 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-01-28 03:41:26,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 80 events. 27/80 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 192 event pairs, 4 based on Foata normal form. 4/84 useless extension candidates. Maximal degree in co-relation 144. Up to 22 conditions per place. [2023-01-28 03:41:26,978 INFO L137 encePairwiseOnDemand]: 163/169 looper letters, 15 selfloop transitions, 4 changer transitions 9/31 dead transitions. [2023-01-28 03:41:26,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 174 flow [2023-01-28 03:41:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 03:41:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 03:41:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 466 transitions. [2023-01-28 03:41:26,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45956607495069035 [2023-01-28 03:41:26,980 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 466 transitions. [2023-01-28 03:41:26,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 466 transitions. [2023-01-28 03:41:26,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:41:26,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 466 transitions. [2023-01-28 03:41:26,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 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 03:41:26,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 03:41:26,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 03:41:26,983 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 99 flow. Second operand 6 states and 466 transitions. [2023-01-28 03:41:26,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 174 flow [2023-01-28 03:41:26,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 151 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-01-28 03:41:26,985 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 79 flow [2023-01-28 03:41:26,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-01-28 03:41:26,986 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2023-01-28 03:41:26,986 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 79 flow [2023-01-28 03:41:26,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 03:41:26,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 03:41:26,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 03:41:26,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 03:41:26,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 03:41:26,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 03:41:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 733781402, now seen corresponding path program 4 times [2023-01-28 03:41:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 03:41:26,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39433504] [2023-01-28 03:41:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 03:41:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 03:41:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 03:41:27,090 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 03:41:27,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 03:41:27,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39433504] [2023-01-28 03:41:27,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39433504] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 03:41:27,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 03:41:27,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 03:41:27,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842859306] [2023-01-28 03:41:27,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 03:41:27,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 03:41:27,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 03:41:27,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 03:41:27,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 03:41:27,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 169 [2023-01-28 03:41:27,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 79 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 03:41:27,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 03:41:27,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 169 [2023-01-28 03:41:27,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 03:41:27,124 INFO L130 PetriNetUnfolder]: 6/19 cut-off events. [2023-01-28 03:41:27,124 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-01-28 03:41:27,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 19 events. 6/19 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 4/23 useless extension candidates. Maximal degree in co-relation 58. Up to 8 conditions per place. [2023-01-28 03:41:27,125 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-01-28 03:41:27,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 11 transitions, 64 flow [2023-01-28 03:41:27,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 03:41:27,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 03:41:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 377 transitions. [2023-01-28 03:41:27,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2023-01-28 03:41:27,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 377 transitions. [2023-01-28 03:41:27,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 377 transitions. [2023-01-28 03:41:27,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 03:41:27,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 377 transitions. [2023-01-28 03:41:27,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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 03:41:27,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 03:41:27,130 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 03:41:27,130 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 79 flow. Second operand 5 states and 377 transitions. [2023-01-28 03:41:27,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 11 transitions, 64 flow [2023-01-28 03:41:27,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 53 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-01-28 03:41:27,131 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-01-28 03:41:27,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-01-28 03:41:27,132 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2023-01-28 03:41:27,132 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-01-28 03:41:27,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 03:41:27,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 03:41:27,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 03:41:27,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-28 03:41:27,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 03:41:27,135 INFO L445 BasicCegarLoop]: Path program histogram: [4] [2023-01-28 03:41:27,137 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 03:41:27,137 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 03:41:27,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 03:41:27 BasicIcfg [2023-01-28 03:41:27,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 03:41:27,141 INFO L158 Benchmark]: Toolchain (without parser) took 6417.16ms. Allocated memory is still 618.7MB. Free memory was 568.8MB in the beginning and 265.9MB in the end (delta: 302.9MB). Peak memory consumption was 304.4MB. Max. memory is 16.0GB. [2023-01-28 03:41:27,141 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 381.7MB. Free memory is still 330.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 03:41:27,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.15ms. Allocated memory is still 618.7MB. Free memory was 568.3MB in the beginning and 557.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 03:41:27,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.47ms. Allocated memory is still 618.7MB. Free memory was 557.8MB in the beginning and 555.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 03:41:27,142 INFO L158 Benchmark]: Boogie Preprocessor took 37.04ms. Allocated memory is still 618.7MB. Free memory was 555.7MB in the beginning and 554.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 03:41:27,142 INFO L158 Benchmark]: RCFGBuilder took 512.34ms. Allocated memory is still 618.7MB. Free memory was 554.7MB in the beginning and 537.3MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 03:41:27,143 INFO L158 Benchmark]: TraceAbstraction took 5585.67ms. Allocated memory is still 618.7MB. Free memory was 536.8MB in the beginning and 265.9MB in the end (delta: 270.9MB). Peak memory consumption was 273.0MB. Max. memory is 16.0GB. [2023-01-28 03:41:27,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 381.7MB. Free memory is still 330.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 226.15ms. Allocated memory is still 618.7MB. Free memory was 568.3MB in the beginning and 557.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.47ms. Allocated memory is still 618.7MB. Free memory was 557.8MB in the beginning and 555.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.04ms. Allocated memory is still 618.7MB. Free memory was 555.7MB in the beginning and 554.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 512.34ms. Allocated memory is still 618.7MB. Free memory was 554.7MB in the beginning and 537.3MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 5585.67ms. Allocated memory is still 618.7MB. Free memory was 536.8MB in the beginning and 265.9MB in the end (delta: 270.9MB). Peak memory consumption was 273.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 90 PlacesBefore, 25 PlacesAfterwards, 85 TransitionsBefore, 18 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 1334 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 772, independent: 648, independent conditional: 0, independent unconditional: 648, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 144, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 772, independent: 512, independent conditional: 0, independent unconditional: 512, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 144, unknown conditional: 0, unknown unconditional: 144] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 102]: 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 5 procedures, 111 locations, 3 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: 5.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 312 IncrementalHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 8 mSDtfsCounter, 312 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=2, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-01-28 03:41:27,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...