./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:14:21,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:14:21,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:14:21,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:14:21,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:14:21,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:14:21,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:14:21,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:14:21,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:14:21,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:14:21,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:14:21,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:14:21,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:14:21,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:14:21,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:14:21,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:14:21,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:14:21,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:14:21,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:14:21,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:14:21,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:14:21,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:14:21,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:14:21,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:14:21,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:14:21,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:14:21,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:14:21,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:14:21,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:14:21,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:14:21,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:14:21,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:14:21,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:14:21,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:14:21,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:14:21,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:14:21,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:14:21,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:14:21,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:14:21,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:14:21,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:14:21,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:14:22,009 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:14:22,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:14:22,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:14:22,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:14:22,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:14:22,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:14:22,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:14:22,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:14:22,013 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:14:22,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:14:22,014 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:14:22,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:14:22,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:14:22,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:14:22,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:14:22,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:14:22,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:14:22,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:14:22,015 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:14:22,015 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:14:22,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:14:22,016 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:14:22,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:14:22,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:14:22,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:14:22,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:14:22,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:14:22,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:14:22,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:14:22,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:14:22,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:14:22,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:14:22,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:14:22,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:14:22,018 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:14:22,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:14:22,019 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:14:22,019 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:14:22,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:14:22,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:14:22,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:14:22,339 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:14:22,340 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:14:22,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2023-08-30 13:14:23,596 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:14:23,952 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:14:23,953 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2023-08-30 13:14:23,980 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbcbf1bf6/495e46d3a8be40409b2ff462e33feeda/FLAGb6d6d12ec [2023-08-30 13:14:23,993 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbcbf1bf6/495e46d3a8be40409b2ff462e33feeda [2023-08-30 13:14:23,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:14:23,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:14:24,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:14:24,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:14:24,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:14:24,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:14:23" (1/1) ... [2023-08-30 13:14:24,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a114dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24, skipping insertion in model container [2023-08-30 13:14:24,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:14:23" (1/1) ... [2023-08-30 13:14:24,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:14:24,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:14:24,609 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2023-08-30 13:14:24,630 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2023-08-30 13:14:24,633 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2023-08-30 13:14:24,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:14:24,657 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:14:24,693 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2023-08-30 13:14:24,721 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2023-08-30 13:14:24,724 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2023-08-30 13:14:24,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:14:24,832 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:14:24,832 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:14:24,838 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:14:24,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24 WrapperNode [2023-08-30 13:14:24,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:14:24,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:14:24,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:14:24,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:14:24,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:24,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:24,933 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1921 [2023-08-30 13:14:24,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:14:24,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:14:24,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:14:24,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:14:24,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:24,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:24,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:24,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:25,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:25,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:25,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:25,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:25,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:14:25,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:14:25,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:14:25,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:14:25,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (1/1) ... [2023-08-30 13:14:25,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:14:25,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:14:25,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:14:25,139 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 [2023-08-30 13:14:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2023-08-30 13:14:25,163 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2023-08-30 13:14:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:14:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:14:25,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:14:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:14:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 13:14:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:14:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:14:25,167 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:14:25,482 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:14:25,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:14:27,120 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:14:27,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:14:27,393 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-08-30 13:14:27,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:14:27 BoogieIcfgContainer [2023-08-30 13:14:27,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:14:27,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:14:27,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:14:27,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:14:27,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:14:23" (1/3) ... [2023-08-30 13:14:27,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83a85c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:14:27, skipping insertion in model container [2023-08-30 13:14:27,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:14:24" (2/3) ... [2023-08-30 13:14:27,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83a85c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:14:27, skipping insertion in model container [2023-08-30 13:14:27,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:14:27" (3/3) ... [2023-08-30 13:14:27,403 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2023-08-30 13:14:27,454 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:14:27,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:14:27,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2023-08-30 13:14:27,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:14:27,698 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 13:14:27,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1694 places, 1761 transitions, 3530 flow [2023-08-30 13:14:28,689 INFO L130 PetriNetUnfolder]: 131/3271 cut-off events. [2023-08-30 13:14:28,689 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:14:28,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3277 conditions, 3271 events. 131/3271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 16200 event pairs, 0 based on Foata normal form. 0/2971 useless extension candidates. Maximal degree in co-relation 1671. Up to 6 conditions per place. [2023-08-30 13:14:28,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 1694 places, 1761 transitions, 3530 flow [2023-08-30 13:14:28,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1694 places, 1761 transitions, 3530 flow [2023-08-30 13:14:28,761 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:14:28,772 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1694 places, 1761 transitions, 3530 flow [2023-08-30 13:14:28,775 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1694 places, 1761 transitions, 3530 flow [2023-08-30 13:14:28,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1694 places, 1761 transitions, 3530 flow [2023-08-30 13:14:29,537 INFO L130 PetriNetUnfolder]: 131/3271 cut-off events. [2023-08-30 13:14:29,538 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:14:29,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3277 conditions, 3271 events. 131/3271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 16200 event pairs, 0 based on Foata normal form. 0/2971 useless extension candidates. Maximal degree in co-relation 1671. Up to 6 conditions per place. [2023-08-30 13:14:29,724 INFO L119 LiptonReduction]: Number of co-enabled transitions 462080 [2023-08-30 13:15:48,482 WARN L222 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 245 DAG size of output: 240 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:15:58,302 WARN L222 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 245 DAG size of output: 240 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:16:01,477 INFO L134 LiptonReduction]: Checked pairs total: 631559 [2023-08-30 13:16:01,477 INFO L136 LiptonReduction]: Total number of compositions: 1750 [2023-08-30 13:16:01,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:16:01,493 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=true, 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;@54d8c715, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:16:01,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-08-30 13:16:01,494 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 13:16:01,494 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:16:01,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:16:01,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 13:16:01,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-08-30 13:16:01,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:16:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash 6669, now seen corresponding path program 1 times [2023-08-30 13:16:01,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:16:01,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959356889] [2023-08-30 13:16:01,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:01,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:16:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:16:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:16:01,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:16:01,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959356889] [2023-08-30 13:16:01,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959356889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:16:01,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:16:01,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 13:16:01,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196949488] [2023-08-30 13:16:01,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:16:01,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:16:01,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:16:01,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:16:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:16:01,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1688 out of 3511 [2023-08-30 13:16:01,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 372 transitions, 752 flow. Second operand has 2 states, 2 states have (on average 1688.5) internal successors, (3377), 2 states have internal predecessors, (3377), 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) [2023-08-30 13:16:01,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:16:01,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1688 of 3511 [2023-08-30 13:16:01,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:16:04,267 INFO L130 PetriNetUnfolder]: 9832/18373 cut-off events. [2023-08-30 13:16:04,267 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:16:04,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36525 conditions, 18373 events. 9832/18373 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 122385 event pairs, 7784 based on Foata normal form. 0/13259 useless extension candidates. Maximal degree in co-relation 35883. Up to 18145 conditions per place. [2023-08-30 13:16:04,351 INFO L137 encePairwiseOnDemand]: 3495/3511 looper letters, 348 selfloop transitions, 0 changer transitions 0/356 dead transitions. [2023-08-30 13:16:04,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 356 transitions, 1416 flow [2023-08-30 13:16:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:16:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:16:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3740 transitions. [2023-08-30 13:16:04,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5326117915123897 [2023-08-30 13:16:04,372 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 3740 transitions. [2023-08-30 13:16:04,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3740 transitions. [2023-08-30 13:16:04,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:16:04,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 3740 transitions. [2023-08-30 13:16:04,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1870.0) internal successors, (3740), 2 states have internal predecessors, (3740), 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) [2023-08-30 13:16:04,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3511.0) internal successors, (10533), 3 states have internal predecessors, (10533), 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) [2023-08-30 13:16:04,409 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3511.0) internal successors, (10533), 3 states have internal predecessors, (10533), 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) [2023-08-30 13:16:04,411 INFO L175 Difference]: Start difference. First operand has 338 places, 372 transitions, 752 flow. Second operand 2 states and 3740 transitions. [2023-08-30 13:16:04,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 356 transitions, 1416 flow [2023-08-30 13:16:04,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 356 transitions, 1416 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:16:04,423 INFO L231 Difference]: Finished difference. Result has 323 places, 356 transitions, 720 flow [2023-08-30 13:16:04,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3511, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=720, PETRI_PLACES=323, PETRI_TRANSITIONS=356} [2023-08-30 13:16:04,427 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -15 predicate places. [2023-08-30 13:16:04,428 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 356 transitions, 720 flow [2023-08-30 13:16:04,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1688.5) internal successors, (3377), 2 states have internal predecessors, (3377), 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) [2023-08-30 13:16:04,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:16:04,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 13:16:04,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:16:04,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-08-30 13:16:04,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:16:04,431 INFO L85 PathProgramCache]: Analyzing trace with hash 213461, now seen corresponding path program 1 times [2023-08-30 13:16:04,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:16:04,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833307892] [2023-08-30 13:16:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:04,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:16:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:16:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:16:04,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:16:04,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833307892] [2023-08-30 13:16:04,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833307892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:16:04,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:16:04,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:16:04,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711023878] [2023-08-30 13:16:04,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:16:04,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:16:04,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:16:04,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:16:04,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:16:04,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 3511 [2023-08-30 13:16:04,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 356 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 1662.6666666666667) internal successors, (4988), 3 states have internal predecessors, (4988), 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) [2023-08-30 13:16:04,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:16:04,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 3511 [2023-08-30 13:16:04,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:16:08,787 INFO L130 PetriNetUnfolder]: 19000/34955 cut-off events. [2023-08-30 13:16:08,787 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:16:08,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69605 conditions, 34955 events. 19000/34955 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 237654 event pairs, 7532 based on Foata normal form. 0/25452 useless extension candidates. Maximal degree in co-relation 69601. Up to 17414 conditions per place. [2023-08-30 13:16:08,920 INFO L137 encePairwiseOnDemand]: 3489/3511 looper letters, 660 selfloop transitions, 12 changer transitions 2/681 dead transitions. [2023-08-30 13:16:08,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 681 transitions, 2718 flow [2023-08-30 13:16:08,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:16:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:16:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5675 transitions. [2023-08-30 13:16:08,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387828728757239 [2023-08-30 13:16:08,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5675 transitions. [2023-08-30 13:16:08,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5675 transitions. [2023-08-30 13:16:08,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:16:08,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5675 transitions. [2023-08-30 13:16:08,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1891.6666666666667) internal successors, (5675), 3 states have internal predecessors, (5675), 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) [2023-08-30 13:16:08,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3511.0) internal successors, (14044), 4 states have internal predecessors, (14044), 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) [2023-08-30 13:16:08,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3511.0) internal successors, (14044), 4 states have internal predecessors, (14044), 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) [2023-08-30 13:16:08,977 INFO L175 Difference]: Start difference. First operand has 323 places, 356 transitions, 720 flow. Second operand 3 states and 5675 transitions. [2023-08-30 13:16:08,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 681 transitions, 2718 flow [2023-08-30 13:16:08,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 681 transitions, 2718 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:16:08,993 INFO L231 Difference]: Finished difference. Result has 322 places, 355 transitions, 772 flow [2023-08-30 13:16:08,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3511, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=772, PETRI_PLACES=322, PETRI_TRANSITIONS=355} [2023-08-30 13:16:08,995 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -16 predicate places. [2023-08-30 13:16:08,995 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 355 transitions, 772 flow [2023-08-30 13:16:08,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1662.6666666666667) internal successors, (4988), 3 states have internal predecessors, (4988), 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) [2023-08-30 13:16:08,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:16:08,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:16:08,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:16:08,999 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-08-30 13:16:09,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:16:09,001 INFO L85 PathProgramCache]: Analyzing trace with hash 6623920, now seen corresponding path program 1 times [2023-08-30 13:16:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:16:09,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341582693] [2023-08-30 13:16:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:16:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:16:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:16:09,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:16:09,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341582693] [2023-08-30 13:16:09,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341582693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:16:09,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:16:09,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:16:09,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766704940] [2023-08-30 13:16:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:16:09,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:16:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:16:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:16:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:16:09,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 3511 [2023-08-30 13:16:09,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 355 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 1663.0) internal successors, (4989), 3 states have internal predecessors, (4989), 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) [2023-08-30 13:16:09,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:16:09,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 3511 [2023-08-30 13:16:09,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:16:12,898 INFO L130 PetriNetUnfolder]: 18968/34895 cut-off events. [2023-08-30 13:16:12,898 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 13:16:12,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69873 conditions, 34895 events. 18968/34895 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 238083 event pairs, 15120 based on Foata normal form. 0/25695 useless extension candidates. Maximal degree in co-relation 69867. Up to 34550 conditions per place. [2023-08-30 13:16:13,034 INFO L137 encePairwiseOnDemand]: 3508/3511 looper letters, 339 selfloop transitions, 1 changer transitions 5/353 dead transitions. [2023-08-30 13:16:13,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 353 transitions, 1454 flow [2023-08-30 13:16:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:16:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:16:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5329 transitions. [2023-08-30 13:16:13,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059337320801292 [2023-08-30 13:16:13,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5329 transitions. [2023-08-30 13:16:13,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5329 transitions. [2023-08-30 13:16:13,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:16:13,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5329 transitions. [2023-08-30 13:16:13,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1776.3333333333333) internal successors, (5329), 3 states have internal predecessors, (5329), 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) [2023-08-30 13:16:13,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3511.0) internal successors, (14044), 4 states have internal predecessors, (14044), 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) [2023-08-30 13:16:13,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3511.0) internal successors, (14044), 4 states have internal predecessors, (14044), 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) [2023-08-30 13:16:13,080 INFO L175 Difference]: Start difference. First operand has 322 places, 355 transitions, 772 flow. Second operand 3 states and 5329 transitions. [2023-08-30 13:16:13,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 353 transitions, 1454 flow [2023-08-30 13:16:13,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 353 transitions, 1442 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:16:13,089 INFO L231 Difference]: Finished difference. Result has 320 places, 348 transitions, 733 flow [2023-08-30 13:16:13,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3511, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=733, PETRI_PLACES=320, PETRI_TRANSITIONS=348} [2023-08-30 13:16:13,091 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -18 predicate places. [2023-08-30 13:16:13,091 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 348 transitions, 733 flow [2023-08-30 13:16:13,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.0) internal successors, (4989), 3 states have internal predecessors, (4989), 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) [2023-08-30 13:16:13,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:16:13,093 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-30 13:16:13,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:16:13,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-08-30 13:16:13,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:16:13,094 INFO L85 PathProgramCache]: Analyzing trace with hash -764080091, now seen corresponding path program 1 times [2023-08-30 13:16:13,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:16:13,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39546736] [2023-08-30 13:16:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:13,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:16:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:16:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-30 13:16:13,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:16:13,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39546736] [2023-08-30 13:16:13,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39546736] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 13:16:13,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825245326] [2023-08-30 13:16:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:13,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:16:13,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:16:13,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 13:16:13,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 13:16:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:16:13,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 13:16:13,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 13:16:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-30 13:16:13,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 13:16:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-30 13:16:13,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825245326] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 13:16:13,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 13:16:13,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 13:16:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534414929] [2023-08-30 13:16:13,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 13:16:13,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:16:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:16:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:16:13,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:16:13,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1656 out of 3511 [2023-08-30 13:16:13,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 348 transitions, 733 flow. Second operand has 7 states, 7 states have (on average 1657.5714285714287) internal successors, (11603), 7 states have internal predecessors, (11603), 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) [2023-08-30 13:16:13,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:16:13,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1656 of 3511 [2023-08-30 13:16:13,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:16:13,734 INFO L130 PetriNetUnfolder]: 69/193 cut-off events. [2023-08-30 13:16:13,734 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-08-30 13:16:13,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 193 events. 69/193 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 663 event pairs, 0 based on Foata normal form. 29/197 useless extension candidates. Maximal degree in co-relation 424. Up to 123 conditions per place. [2023-08-30 13:16:13,735 INFO L137 encePairwiseOnDemand]: 3506/3511 looper letters, 68 selfloop transitions, 7 changer transitions 0/77 dead transitions. [2023-08-30 13:16:13,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 327 flow [2023-08-30 13:16:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:16:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:16:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10015 transitions. [2023-08-30 13:16:13,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754106142599449 [2023-08-30 13:16:13,759 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 10015 transitions. [2023-08-30 13:16:13,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 10015 transitions. [2023-08-30 13:16:13,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:16:13,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 10015 transitions. [2023-08-30 13:16:13,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1669.1666666666667) internal successors, (10015), 6 states have internal predecessors, (10015), 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) [2023-08-30 13:16:13,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 3511.0) internal successors, (24577), 7 states have internal predecessors, (24577), 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) [2023-08-30 13:16:13,807 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 3511.0) internal successors, (24577), 7 states have internal predecessors, (24577), 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) [2023-08-30 13:16:13,807 INFO L175 Difference]: Start difference. First operand has 320 places, 348 transitions, 733 flow. Second operand 6 states and 10015 transitions. [2023-08-30 13:16:13,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 327 flow [2023-08-30 13:16:13,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 77 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:16:13,809 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 126 flow [2023-08-30 13:16:13,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3511, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2023-08-30 13:16:13,811 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -291 predicate places. [2023-08-30 13:16:13,811 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 126 flow [2023-08-30 13:16:13,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1657.5714285714287) internal successors, (11603), 7 states have internal predecessors, (11603), 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) [2023-08-30 13:16:13,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:16:13,815 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-08-30 13:16:13,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 13:16:14,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 13:16:14,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2023-08-30 13:16:14,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:16:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash -371070624, now seen corresponding path program 2 times [2023-08-30 13:16:14,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:16:14,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348799379] [2023-08-30 13:16:14,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:14,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:16:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 13:16:14,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 13:16:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 13:16:14,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 13:16:14,196 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 13:16:14,196 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2023-08-30 13:16:14,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2023-08-30 13:16:14,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2023-08-30 13:16:14,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2023-08-30 13:16:14,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2023-08-30 13:16:14,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2023-08-30 13:16:14,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2023-08-30 13:16:14,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2023-08-30 13:16:14,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2023-08-30 13:16:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2023-08-30 13:16:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2023-08-30 13:16:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2023-08-30 13:16:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2023-08-30 13:16:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2023-08-30 13:16:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2023-08-30 13:16:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2023-08-30 13:16:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2023-08-30 13:16:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2023-08-30 13:16:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2023-08-30 13:16:14,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2023-08-30 13:16:14,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2023-08-30 13:16:14,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2023-08-30 13:16:14,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2023-08-30 13:16:14,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2023-08-30 13:16:14,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2023-08-30 13:16:14,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2023-08-30 13:16:14,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2023-08-30 13:16:14,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2023-08-30 13:16:14,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2023-08-30 13:16:14,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2023-08-30 13:16:14,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2023-08-30 13:16:14,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2023-08-30 13:16:14,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2023-08-30 13:16:14,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2023-08-30 13:16:14,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2023-08-30 13:16:14,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2023-08-30 13:16:14,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2023-08-30 13:16:14,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2023-08-30 13:16:14,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2023-08-30 13:16:14,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2023-08-30 13:16:14,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2023-08-30 13:16:14,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2023-08-30 13:16:14,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2023-08-30 13:16:14,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2023-08-30 13:16:14,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2023-08-30 13:16:14,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2023-08-30 13:16:14,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2023-08-30 13:16:14,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2023-08-30 13:16:14,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2023-08-30 13:16:14,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2023-08-30 13:16:14,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2023-08-30 13:16:14,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2023-08-30 13:16:14,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2023-08-30 13:16:14,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2023-08-30 13:16:14,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2023-08-30 13:16:14,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2023-08-30 13:16:14,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2023-08-30 13:16:14,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2023-08-30 13:16:14,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2023-08-30 13:16:14,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2023-08-30 13:16:14,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2023-08-30 13:16:14,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2023-08-30 13:16:14,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2023-08-30 13:16:14,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2023-08-30 13:16:14,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2023-08-30 13:16:14,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2023-08-30 13:16:14,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2023-08-30 13:16:14,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2023-08-30 13:16:14,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2023-08-30 13:16:14,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2023-08-30 13:16:14,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2023-08-30 13:16:14,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2023-08-30 13:16:14,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2023-08-30 13:16:14,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2023-08-30 13:16:14,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2023-08-30 13:16:14,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2023-08-30 13:16:14,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2023-08-30 13:16:14,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2023-08-30 13:16:14,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2023-08-30 13:16:14,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2023-08-30 13:16:14,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2023-08-30 13:16:14,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2023-08-30 13:16:14,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2023-08-30 13:16:14,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2023-08-30 13:16:14,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2023-08-30 13:16:14,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2023-08-30 13:16:14,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2023-08-30 13:16:14,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2023-08-30 13:16:14,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2023-08-30 13:16:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2023-08-30 13:16:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2023-08-30 13:16:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2023-08-30 13:16:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2023-08-30 13:16:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2023-08-30 13:16:14,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2023-08-30 13:16:14,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2023-08-30 13:16:14,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2023-08-30 13:16:14,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:16:14,226 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-30 13:16:14,228 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 13:16:14,228 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 13:16:14,331 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:16:14,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1843 places, 1915 transitions, 3848 flow [2023-08-30 13:16:15,610 INFO L130 PetriNetUnfolder]: 204/4993 cut-off events. [2023-08-30 13:16:15,611 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 13:16:15,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5007 conditions, 4993 events. 204/4993 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 30494 event pairs, 0 based on Foata normal form. 0/4529 useless extension candidates. Maximal degree in co-relation 3273. Up to 9 conditions per place. [2023-08-30 13:16:15,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 1843 places, 1915 transitions, 3848 flow [2023-08-30 13:16:15,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1843 places, 1915 transitions, 3848 flow [2023-08-30 13:16:15,696 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:16:15,697 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1843 places, 1915 transitions, 3848 flow [2023-08-30 13:16:15,697 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1843 places, 1915 transitions, 3848 flow [2023-08-30 13:16:15,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1843 places, 1915 transitions, 3848 flow [2023-08-30 13:16:16,933 INFO L130 PetriNetUnfolder]: 204/4993 cut-off events. [2023-08-30 13:16:16,934 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 13:16:17,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5007 conditions, 4993 events. 204/4993 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 30494 event pairs, 0 based on Foata normal form. 0/4529 useless extension candidates. Maximal degree in co-relation 3273. Up to 9 conditions per place. [2023-08-30 13:16:17,518 INFO L119 LiptonReduction]: Number of co-enabled transitions 976144 [2023-08-30 13:17:50,097 WARN L222 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 245 DAG size of output: 240 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 13:17:53,502 INFO L134 LiptonReduction]: Checked pairs total: 1334578 [2023-08-30 13:17:53,503 INFO L136 LiptonReduction]: Total number of compositions: 1884 [2023-08-30 13:17:53,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:17:53,506 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=true, 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;@54d8c715, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:17:53,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2023-08-30 13:17:53,506 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 13:17:53,506 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:17:53,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:17:53,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 13:17:53,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-08-30 13:17:53,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:17:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash 10620, now seen corresponding path program 1 times [2023-08-30 13:17:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:17:53,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885631176] [2023-08-30 13:17:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:17:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:17:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:17:53,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:17:53,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:17:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885631176] [2023-08-30 13:17:53,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885631176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:17:53,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:17:53,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 13:17:53,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172713041] [2023-08-30 13:17:53,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:17:53,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 13:17:53,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:17:53,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 13:17:53,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 13:17:53,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1835 out of 3799 [2023-08-30 13:17:53,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 415 transitions, 848 flow. Second operand has 2 states, 2 states have (on average 1835.5) internal successors, (3671), 2 states have internal predecessors, (3671), 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) [2023-08-30 13:17:53,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:17:53,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1835 of 3799 [2023-08-30 13:17:53,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:19:00,664 INFO L130 PetriNetUnfolder]: 557973/807986 cut-off events. [2023-08-30 13:19:00,664 INFO L131 PetriNetUnfolder]: For 250/250 co-relation queries the response was YES. [2023-08-30 13:19:01,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611194 conditions, 807986 events. 557973/807986 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 5347. Compared 6239571 event pairs, 463680 based on Foata normal form. 1742/590557 useless extension candidates. Maximal degree in co-relation 1362933. Up to 803046 conditions per place. [2023-08-30 13:19:03,797 INFO L137 encePairwiseOnDemand]: 3780/3799 looper letters, 387 selfloop transitions, 0 changer transitions 0/396 dead transitions. [2023-08-30 13:19:03,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 396 transitions, 1584 flow [2023-08-30 13:19:03,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 13:19:03,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 13:19:03,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4076 transitions. [2023-08-30 13:19:03,805 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364569623585154 [2023-08-30 13:19:03,805 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 4076 transitions. [2023-08-30 13:19:03,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 4076 transitions. [2023-08-30 13:19:03,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:19:03,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 4076 transitions. [2023-08-30 13:19:03,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 2038.0) internal successors, (4076), 2 states have internal predecessors, (4076), 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) [2023-08-30 13:19:03,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3799.0) internal successors, (11397), 3 states have internal predecessors, (11397), 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) [2023-08-30 13:19:03,824 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3799.0) internal successors, (11397), 3 states have internal predecessors, (11397), 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) [2023-08-30 13:19:03,824 INFO L175 Difference]: Start difference. First operand has 375 places, 415 transitions, 848 flow. Second operand 2 states and 4076 transitions. [2023-08-30 13:19:03,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 396 transitions, 1584 flow [2023-08-30 13:19:03,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 396 transitions, 1584 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:19:03,831 INFO L231 Difference]: Finished difference. Result has 359 places, 396 transitions, 810 flow [2023-08-30 13:19:03,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3799, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=810, PETRI_PLACES=359, PETRI_TRANSITIONS=396} [2023-08-30 13:19:03,832 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -16 predicate places. [2023-08-30 13:19:03,832 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 396 transitions, 810 flow [2023-08-30 13:19:03,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1835.5) internal successors, (3671), 2 states have internal predecessors, (3671), 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) [2023-08-30 13:19:03,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:19:03,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 13:19:03,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:19:03,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2023-08-30 13:19:03,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:19:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash 339924, now seen corresponding path program 1 times [2023-08-30 13:19:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:19:03,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577327076] [2023-08-30 13:19:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:19:03,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:19:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:19:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:19:03,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:19:03,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577327076] [2023-08-30 13:19:03,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577327076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:19:03,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:19:03,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:19:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286472093] [2023-08-30 13:19:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:19:03,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:19:03,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:19:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:19:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:19:03,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1809 out of 3799 [2023-08-30 13:19:03,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 396 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 1809.6666666666667) internal successors, (5429), 3 states have internal predecessors, (5429), 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) [2023-08-30 13:19:03,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:19:03,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1809 of 3799 [2023-08-30 13:19:03,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand