./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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/goblint-regression/04-mutex_12-ptr_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:58:04,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:58:04,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:58:04,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:58:04,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:58:04,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:58:04,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:58:04,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:58:04,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:58:04,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:58:04,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:58:04,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:58:04,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:58:04,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:58:04,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:58:04,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:58:04,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:58:04,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:58:04,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:58:04,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:58:04,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:58:04,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:58:04,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:58:04,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:58:04,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:58:04,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:58:04,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:58:04,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:58:04,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:58:04,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:58:04,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:58:04,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:58:04,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:58:04,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:58:04,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:58:04,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:58:04,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:58:04,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:58:04,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:58:04,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:58:04,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:58:04,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:58:04,589 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:58:04,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:58:04,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:58:04,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:58:04,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:58:04,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:58:04,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:58:04,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:58:04,595 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:58:04,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:58:04,596 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:58:04,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:58:04,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:58:04,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:58:04,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:58:04,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:58:04,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:58:04,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:58:04,597 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:58:04,597 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:58:04,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:58:04,598 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:58:04,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:58:04,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:58:04,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:58:04,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:58:04,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:58:04,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:58:04,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:58:04,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:58:04,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:58:04,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:58:04,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:58:04,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:58:04,600 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:58:04,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:58:04,601 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:58:04,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:58:04,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:58:04,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:58:04,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:58:04,899 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:58:04,900 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:58:04,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i [2023-08-29 01:58:06,139 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:58:06,433 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:58:06,435 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_12-ptr_nr.i [2023-08-29 01:58:06,451 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e90c144/1178ef50f2f94a9abbdf5f1f6e859de8/FLAG0a299691e [2023-08-29 01:58:06,470 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04e90c144/1178ef50f2f94a9abbdf5f1f6e859de8 [2023-08-29 01:58:06,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:58:06,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:58:06,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:58:06,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:58:06,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:58:06,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:58:06" (1/1) ... [2023-08-29 01:58:06,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75702ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:06, skipping insertion in model container [2023-08-29 01:58:06,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:58:06" (1/1) ... [2023-08-29 01:58:06,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:58:06,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:58:06,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:58:06,905 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:58:06,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:58:07,018 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:58:07,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07 WrapperNode [2023-08-29 01:58:07,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:58:07,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:58:07,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:58:07,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:58:07,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,077 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-08-29 01:58:07,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:58:07,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:58:07,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:58:07,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:58:07,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,118 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:58:07,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:58:07,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:58:07,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:58:07,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (1/1) ... [2023-08-29 01:58:07,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:58:07,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:58:07,166 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) [2023-08-29 01:58:07,195 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 [2023-08-29 01:58:07,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:58:07,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:58:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:58:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:58:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:58:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:58:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:58:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:58:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:58:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:58:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:58:07,213 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:58:07,389 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:58:07,391 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:58:07,653 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:58:07,659 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:58:07,659 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:58:07,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:07 BoogieIcfgContainer [2023-08-29 01:58:07,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:58:07,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:58:07,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:58:07,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:58:07,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:58:06" (1/3) ... [2023-08-29 01:58:07,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bd1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:07, skipping insertion in model container [2023-08-29 01:58:07,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:07" (2/3) ... [2023-08-29 01:58:07,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bd1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:07, skipping insertion in model container [2023-08-29 01:58:07,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:07" (3/3) ... [2023-08-29 01:58:07,668 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2023-08-29 01:58:07,675 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:58:07,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:58:07,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 01:58:07,683 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:58:07,763 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 01:58:07,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 90 transitions, 188 flow [2023-08-29 01:58:07,840 INFO L130 PetriNetUnfolder]: 0/89 cut-off events. [2023-08-29 01:58:07,840 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:58:07,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 89 events. 0/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-29 01:58:07,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 90 transitions, 188 flow [2023-08-29 01:58:07,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 82 transitions, 167 flow [2023-08-29 01:58:07,849 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:58:07,858 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 167 flow [2023-08-29 01:58:07,860 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 167 flow [2023-08-29 01:58:07,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 167 flow [2023-08-29 01:58:07,883 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2023-08-29 01:58:07,883 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:07,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:58:07,885 INFO L119 LiptonReduction]: Number of co-enabled transitions 1392 [2023-08-29 01:58:09,700 INFO L134 LiptonReduction]: Checked pairs total: 10402 [2023-08-29 01:58:09,700 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-29 01:58:09,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:58:09,721 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;@4d9aa8e5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:58:09,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 01:58:09,736 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 01:58:09,737 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:09,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:09,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:09,739 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:09,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:09,743 INFO L85 PathProgramCache]: Analyzing trace with hash -481169387, now seen corresponding path program 1 times [2023-08-29 01:58:09,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262117742] [2023-08-29 01:58:09,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:09,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:10,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262117742] [2023-08-29 01:58:10,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262117742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:10,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:10,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886942998] [2023-08-29 01:58:10,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:10,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:10,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 131 [2023-08-29 01:58:10,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-29 01:58:10,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:10,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 131 [2023-08-29 01:58:10,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:10,702 INFO L130 PetriNetUnfolder]: 147/470 cut-off events. [2023-08-29 01:58:10,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:10,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 470 events. 147/470 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2305 event pairs, 66 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 791. Up to 242 conditions per place. [2023-08-29 01:58:10,708 INFO L137 encePairwiseOnDemand]: 120/131 looper letters, 41 selfloop transitions, 22 changer transitions 0/79 dead transitions. [2023-08-29 01:58:10,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 79 transitions, 287 flow [2023-08-29 01:58:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2023-08-29 01:58:10,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6310432569974554 [2023-08-29 01:58:10,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 496 transitions. [2023-08-29 01:58:10,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 496 transitions. [2023-08-29 01:58:10,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:10,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 496 transitions. [2023-08-29 01:58:10,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2023-08-29 01:58:10,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:10,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:10,737 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 496 transitions. [2023-08-29 01:58:10,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 79 transitions, 287 flow [2023-08-29 01:58:10,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 79 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:10,741 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-29 01:58:10,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-29 01:58:10,746 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-29 01:58:10,746 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-29 01:58:10,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-29 01:58:10,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:10,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:10,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:58:10,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:10,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2108507392, now seen corresponding path program 1 times [2023-08-29 01:58:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:10,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851945363] [2023-08-29 01:58:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:10,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:10,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:10,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851945363] [2023-08-29 01:58:10,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851945363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:10,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:10,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:10,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351885599] [2023-08-29 01:58:10,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:10,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:10,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:11,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 131 [2023-08-29 01:58:11,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-29 01:58:11,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:11,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 131 [2023-08-29 01:58:11,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:11,269 INFO L130 PetriNetUnfolder]: 189/582 cut-off events. [2023-08-29 01:58:11,270 INFO L131 PetriNetUnfolder]: For 136/139 co-relation queries the response was YES. [2023-08-29 01:58:11,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 582 events. 189/582 cut-off events. For 136/139 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3085 event pairs, 76 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 1184. Up to 306 conditions per place. [2023-08-29 01:58:11,277 INFO L137 encePairwiseOnDemand]: 120/131 looper letters, 57 selfloop transitions, 26 changer transitions 0/103 dead transitions. [2023-08-29 01:58:11,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 103 transitions, 500 flow [2023-08-29 01:58:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2023-08-29 01:58:11,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6348600508905853 [2023-08-29 01:58:11,282 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2023-08-29 01:58:11,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2023-08-29 01:58:11,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:11,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2023-08-29 01:58:11,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2023-08-29 01:58:11,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:11,287 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:11,287 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 499 transitions. [2023-08-29 01:58:11,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 103 transitions, 500 flow [2023-08-29 01:58:11,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 103 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:11,294 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-29 01:58:11,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2023-08-29 01:58:11,294 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-29 01:58:11,295 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-29 01:58:11,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-29 01:58:11,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:11,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:11,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:58:11,296 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:11,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1356089368, now seen corresponding path program 1 times [2023-08-29 01:58:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:11,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30640384] [2023-08-29 01:58:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:11,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:11,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:11,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30640384] [2023-08-29 01:58:11,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30640384] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:11,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:11,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:11,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540357726] [2023-08-29 01:58:11,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:11,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:11,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:11,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:11,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 131 [2023-08-29 01:58:11,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2023-08-29 01:58:11,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:11,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 131 [2023-08-29 01:58:11,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:11,919 INFO L130 PetriNetUnfolder]: 396/958 cut-off events. [2023-08-29 01:58:11,920 INFO L131 PetriNetUnfolder]: For 648/660 co-relation queries the response was YES. [2023-08-29 01:58:11,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2606 conditions, 958 events. 396/958 cut-off events. For 648/660 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4967 event pairs, 131 based on Foata normal form. 1/914 useless extension candidates. Maximal degree in co-relation 2588. Up to 690 conditions per place. [2023-08-29 01:58:11,928 INFO L137 encePairwiseOnDemand]: 112/131 looper letters, 84 selfloop transitions, 69 changer transitions 0/162 dead transitions. [2023-08-29 01:58:11,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 162 transitions, 1016 flow [2023-08-29 01:58:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:11,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2023-08-29 01:58:11,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6043256997455471 [2023-08-29 01:58:11,930 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2023-08-29 01:58:11,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2023-08-29 01:58:11,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:11,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2023-08-29 01:58:11,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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) [2023-08-29 01:58:11,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:11,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:11,935 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 475 transitions. [2023-08-29 01:58:11,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 162 transitions, 1016 flow [2023-08-29 01:58:11,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 162 transitions, 1016 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:11,942 INFO L231 Difference]: Finished difference. Result has 74 places, 146 transitions, 1004 flow [2023-08-29 01:58:11,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1004, PETRI_PLACES=74, PETRI_TRANSITIONS=146} [2023-08-29 01:58:11,943 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-29 01:58:11,943 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 146 transitions, 1004 flow [2023-08-29 01:58:11,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2023-08-29 01:58:11,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:11,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:11,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:58:11,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:11,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1749636055, now seen corresponding path program 1 times [2023-08-29 01:58:11,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:11,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406751578] [2023-08-29 01:58:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:11,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:12,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:12,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406751578] [2023-08-29 01:58:12,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406751578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:12,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:12,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:12,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742040319] [2023-08-29 01:58:12,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:12,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:12,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:12,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 131 [2023-08-29 01:58:12,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 146 transitions, 1004 flow. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 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) [2023-08-29 01:58:12,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:12,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 131 [2023-08-29 01:58:12,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:12,580 INFO L130 PetriNetUnfolder]: 467/1102 cut-off events. [2023-08-29 01:58:12,581 INFO L131 PetriNetUnfolder]: For 1323/1334 co-relation queries the response was YES. [2023-08-29 01:58:12,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3825 conditions, 1102 events. 467/1102 cut-off events. For 1323/1334 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5961 event pairs, 119 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 3802. Up to 818 conditions per place. [2023-08-29 01:58:12,589 INFO L137 encePairwiseOnDemand]: 116/131 looper letters, 148 selfloop transitions, 67 changer transitions 0/224 dead transitions. [2023-08-29 01:58:12,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 224 transitions, 1856 flow [2023-08-29 01:58:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 457 transitions. [2023-08-29 01:58:12,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5814249363867684 [2023-08-29 01:58:12,594 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 457 transitions. [2023-08-29 01:58:12,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 457 transitions. [2023-08-29 01:58:12,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:12,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 457 transitions. [2023-08-29 01:58:12,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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) [2023-08-29 01:58:12,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:12,601 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:12,601 INFO L175 Difference]: Start difference. First operand has 74 places, 146 transitions, 1004 flow. Second operand 6 states and 457 transitions. [2023-08-29 01:58:12,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 224 transitions, 1856 flow [2023-08-29 01:58:12,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 224 transitions, 1792 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:12,618 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1592 flow [2023-08-29 01:58:12,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1592, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-08-29 01:58:12,620 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-29 01:58:12,620 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1592 flow [2023-08-29 01:58:12,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 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) [2023-08-29 01:58:12,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:12,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:12,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:58:12,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:12,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1882413065, now seen corresponding path program 1 times [2023-08-29 01:58:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:12,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667287013] [2023-08-29 01:58:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:12,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667287013] [2023-08-29 01:58:12,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667287013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:12,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:12,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:58:12,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413821629] [2023-08-29 01:58:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:58:12,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:58:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:58:12,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 131 [2023-08-29 01:58:12,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 199 transitions, 1592 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-29 01:58:12,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:12,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 131 [2023-08-29 01:58:12,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:12,731 INFO L130 PetriNetUnfolder]: 40/165 cut-off events. [2023-08-29 01:58:12,732 INFO L131 PetriNetUnfolder]: For 222/222 co-relation queries the response was YES. [2023-08-29 01:58:12,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 165 events. 40/165 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 503 event pairs, 5 based on Foata normal form. 8/162 useless extension candidates. Maximal degree in co-relation 534. Up to 60 conditions per place. [2023-08-29 01:58:12,733 INFO L137 encePairwiseOnDemand]: 127/131 looper letters, 9 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-29 01:58:12,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 59 transitions, 382 flow [2023-08-29 01:58:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:58:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:58:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2023-08-29 01:58:12,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6692111959287532 [2023-08-29 01:58:12,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2023-08-29 01:58:12,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2023-08-29 01:58:12,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:12,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2023-08-29 01:58:12,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-08-29 01:58:12,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-08-29 01:58:12,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-08-29 01:58:12,737 INFO L175 Difference]: Start difference. First operand has 84 places, 199 transitions, 1592 flow. Second operand 3 states and 263 transitions. [2023-08-29 01:58:12,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 59 transitions, 382 flow [2023-08-29 01:58:12,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 256 flow, removed 33 selfloop flow, removed 30 redundant places. [2023-08-29 01:58:12,741 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 238 flow [2023-08-29 01:58:12,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2023-08-29 01:58:12,743 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2023-08-29 01:58:12,743 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 238 flow [2023-08-29 01:58:12,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-29 01:58:12,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:12,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:12,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:58:12,744 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:12,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash 136934458, now seen corresponding path program 1 times [2023-08-29 01:58:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:12,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100001397] [2023-08-29 01:58:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:12,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:12,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100001397] [2023-08-29 01:58:12,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100001397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:12,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:12,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770698421] [2023-08-29 01:58:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:12,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:12,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:13,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 131 [2023-08-29 01:58:13,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-29 01:58:13,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:13,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 131 [2023-08-29 01:58:13,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:13,250 INFO L130 PetriNetUnfolder]: 97/282 cut-off events. [2023-08-29 01:58:13,251 INFO L131 PetriNetUnfolder]: For 120/124 co-relation queries the response was YES. [2023-08-29 01:58:13,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 846 conditions, 282 events. 97/282 cut-off events. For 120/124 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1106 event pairs, 7 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 832. Up to 158 conditions per place. [2023-08-29 01:58:13,252 INFO L137 encePairwiseOnDemand]: 121/131 looper letters, 53 selfloop transitions, 25 changer transitions 19/110 dead transitions. [2023-08-29 01:58:13,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 110 transitions, 670 flow [2023-08-29 01:58:13,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-08-29 01:58:13,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6259541984732825 [2023-08-29 01:58:13,256 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-08-29 01:58:13,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-08-29 01:58:13,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:13,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-08-29 01:58:13,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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) [2023-08-29 01:58:13,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:13,260 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 131.0) internal successors, (917), 7 states have internal predecessors, (917), 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) [2023-08-29 01:58:13,260 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 238 flow. Second operand 6 states and 492 transitions. [2023-08-29 01:58:13,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 110 transitions, 670 flow [2023-08-29 01:58:13,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 110 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:13,270 INFO L231 Difference]: Finished difference. Result has 62 places, 79 transitions, 449 flow [2023-08-29 01:58:13,270 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=449, PETRI_PLACES=62, PETRI_TRANSITIONS=79} [2023-08-29 01:58:13,272 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 17 predicate places. [2023-08-29 01:58:13,272 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 79 transitions, 449 flow [2023-08-29 01:58:13,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2023-08-29 01:58:13,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:13,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:13,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:58:13,275 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:13,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash 172216287, now seen corresponding path program 1 times [2023-08-29 01:58:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:13,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775607463] [2023-08-29 01:58:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:13,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:13,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775607463] [2023-08-29 01:58:13,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775607463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:13,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:13,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:58:13,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984191991] [2023-08-29 01:58:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:13,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:58:13,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:13,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:58:13,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:58:13,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 131 [2023-08-29 01:58:13,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 79 transitions, 449 flow. Second operand has 9 states, 9 states have (on average 61.111111111111114) internal successors, (550), 9 states have internal predecessors, (550), 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) [2023-08-29 01:58:13,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:13,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 131 [2023-08-29 01:58:13,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:14,136 INFO L130 PetriNetUnfolder]: 95/296 cut-off events. [2023-08-29 01:58:14,136 INFO L131 PetriNetUnfolder]: For 250/250 co-relation queries the response was YES. [2023-08-29 01:58:14,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 296 events. 95/296 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1153 event pairs, 31 based on Foata normal form. 9/305 useless extension candidates. Maximal degree in co-relation 1088. Up to 117 conditions per place. [2023-08-29 01:58:14,139 INFO L137 encePairwiseOnDemand]: 123/131 looper letters, 68 selfloop transitions, 27 changer transitions 16/117 dead transitions. [2023-08-29 01:58:14,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 117 transitions, 887 flow [2023-08-29 01:58:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:58:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:58:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 529 transitions. [2023-08-29 01:58:14,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047709923664122 [2023-08-29 01:58:14,141 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 529 transitions. [2023-08-29 01:58:14,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 529 transitions. [2023-08-29 01:58:14,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:14,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 529 transitions. [2023-08-29 01:58:14,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 66.125) internal successors, (529), 8 states have internal predecessors, (529), 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) [2023-08-29 01:58:14,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:14,145 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:14,145 INFO L175 Difference]: Start difference. First operand has 62 places, 79 transitions, 449 flow. Second operand 8 states and 529 transitions. [2023-08-29 01:58:14,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 117 transitions, 887 flow [2023-08-29 01:58:14,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 117 transitions, 869 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:14,150 INFO L231 Difference]: Finished difference. Result has 68 places, 77 transitions, 471 flow [2023-08-29 01:58:14,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=471, PETRI_PLACES=68, PETRI_TRANSITIONS=77} [2023-08-29 01:58:14,151 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2023-08-29 01:58:14,151 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 77 transitions, 471 flow [2023-08-29 01:58:14,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 61.111111111111114) internal successors, (550), 9 states have internal predecessors, (550), 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) [2023-08-29 01:58:14,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:14,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:14,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:58:14,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:14,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1583425277, now seen corresponding path program 1 times [2023-08-29 01:58:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:14,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318008367] [2023-08-29 01:58:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:14,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:14,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318008367] [2023-08-29 01:58:14,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318008367] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:14,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:14,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:58:14,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271247303] [2023-08-29 01:58:14,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:14,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:58:14,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:58:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:58:14,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-29 01:58:14,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 77 transitions, 471 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:14,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:14,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-29 01:58:14,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:15,086 INFO L130 PetriNetUnfolder]: 127/365 cut-off events. [2023-08-29 01:58:15,086 INFO L131 PetriNetUnfolder]: For 457/457 co-relation queries the response was YES. [2023-08-29 01:58:15,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 365 events. 127/365 cut-off events. For 457/457 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1584 event pairs, 6 based on Foata normal form. 11/376 useless extension candidates. Maximal degree in co-relation 1446. Up to 135 conditions per place. [2023-08-29 01:58:15,089 INFO L137 encePairwiseOnDemand]: 123/131 looper letters, 48 selfloop transitions, 2 changer transitions 99/161 dead transitions. [2023-08-29 01:58:15,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 161 transitions, 1327 flow [2023-08-29 01:58:15,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:58:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:58:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 697 transitions. [2023-08-29 01:58:15,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911789652247668 [2023-08-29 01:58:15,092 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 697 transitions. [2023-08-29 01:58:15,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 697 transitions. [2023-08-29 01:58:15,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:15,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 697 transitions. [2023-08-29 01:58:15,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.44444444444444) internal successors, (697), 9 states have internal predecessors, (697), 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) [2023-08-29 01:58:15,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2023-08-29 01:58:15,097 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2023-08-29 01:58:15,097 INFO L175 Difference]: Start difference. First operand has 68 places, 77 transitions, 471 flow. Second operand 9 states and 697 transitions. [2023-08-29 01:58:15,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 161 transitions, 1327 flow [2023-08-29 01:58:15,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 161 transitions, 1173 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-08-29 01:58:15,103 INFO L231 Difference]: Finished difference. Result has 74 places, 59 transitions, 324 flow [2023-08-29 01:58:15,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=324, PETRI_PLACES=74, PETRI_TRANSITIONS=59} [2023-08-29 01:58:15,104 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-29 01:58:15,104 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 59 transitions, 324 flow [2023-08-29 01:58:15,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:15,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:15,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:15,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 01:58:15,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:15,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:15,106 INFO L85 PathProgramCache]: Analyzing trace with hash 36389797, now seen corresponding path program 2 times [2023-08-29 01:58:15,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:15,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247325548] [2023-08-29 01:58:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:15,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:15,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:15,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247325548] [2023-08-29 01:58:15,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247325548] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:15,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:15,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:58:15,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568925761] [2023-08-29 01:58:15,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:15,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:58:15,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:15,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:58:15,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:58:15,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-29 01:58:15,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 59 transitions, 324 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:15,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:15,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-29 01:58:15,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:16,007 INFO L130 PetriNetUnfolder]: 46/164 cut-off events. [2023-08-29 01:58:16,007 INFO L131 PetriNetUnfolder]: For 222/223 co-relation queries the response was YES. [2023-08-29 01:58:16,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 164 events. 46/164 cut-off events. For 222/223 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 468 event pairs, 5 based on Foata normal form. 6/170 useless extension candidates. Maximal degree in co-relation 588. Up to 104 conditions per place. [2023-08-29 01:58:16,008 INFO L137 encePairwiseOnDemand]: 123/131 looper letters, 46 selfloop transitions, 9 changer transitions 12/79 dead transitions. [2023-08-29 01:58:16,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 79 transitions, 547 flow [2023-08-29 01:58:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:58:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:58:16,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 603 transitions. [2023-08-29 01:58:16,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.575381679389313 [2023-08-29 01:58:16,010 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 603 transitions. [2023-08-29 01:58:16,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 603 transitions. [2023-08-29 01:58:16,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:16,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 603 transitions. [2023-08-29 01:58:16,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 75.375) internal successors, (603), 8 states have internal predecessors, (603), 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) [2023-08-29 01:58:16,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:16,013 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:16,013 INFO L175 Difference]: Start difference. First operand has 74 places, 59 transitions, 324 flow. Second operand 8 states and 603 transitions. [2023-08-29 01:58:16,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 79 transitions, 547 flow [2023-08-29 01:58:16,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 79 transitions, 482 flow, removed 23 selfloop flow, removed 8 redundant places. [2023-08-29 01:58:16,016 INFO L231 Difference]: Finished difference. Result has 69 places, 59 transitions, 289 flow [2023-08-29 01:58:16,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=289, PETRI_PLACES=69, PETRI_TRANSITIONS=59} [2023-08-29 01:58:16,017 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 24 predicate places. [2023-08-29 01:58:16,017 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 289 flow [2023-08-29 01:58:16,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:16,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:16,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:16,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 01:58:16,018 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:16,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash -757001913, now seen corresponding path program 3 times [2023-08-29 01:58:16,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:16,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622558792] [2023-08-29 01:58:16,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:16,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:16,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:16,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622558792] [2023-08-29 01:58:16,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622558792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:16,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:16,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:58:16,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779126018] [2023-08-29 01:58:16,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:16,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:58:16,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:58:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:58:16,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-29 01:58:16,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 289 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:16,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:16,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-29 01:58:16,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:16,906 INFO L130 PetriNetUnfolder]: 66/217 cut-off events. [2023-08-29 01:58:16,907 INFO L131 PetriNetUnfolder]: For 233/234 co-relation queries the response was YES. [2023-08-29 01:58:16,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 217 events. 66/217 cut-off events. For 233/234 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 743 event pairs, 7 based on Foata normal form. 11/227 useless extension candidates. Maximal degree in co-relation 754. Up to 89 conditions per place. [2023-08-29 01:58:16,908 INFO L137 encePairwiseOnDemand]: 124/131 looper letters, 39 selfloop transitions, 3 changer transitions 62/116 dead transitions. [2023-08-29 01:58:16,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 116 transitions, 827 flow [2023-08-29 01:58:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:58:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:58:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 609 transitions. [2023-08-29 01:58:16,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5811068702290076 [2023-08-29 01:58:16,911 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 609 transitions. [2023-08-29 01:58:16,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 609 transitions. [2023-08-29 01:58:16,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:16,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 609 transitions. [2023-08-29 01:58:16,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 76.125) internal successors, (609), 8 states have internal predecessors, (609), 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) [2023-08-29 01:58:16,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:16,915 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:16,916 INFO L175 Difference]: Start difference. First operand has 69 places, 59 transitions, 289 flow. Second operand 8 states and 609 transitions. [2023-08-29 01:58:16,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 116 transitions, 827 flow [2023-08-29 01:58:16,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 116 transitions, 791 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-29 01:58:16,919 INFO L231 Difference]: Finished difference. Result has 72 places, 53 transitions, 266 flow [2023-08-29 01:58:16,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=266, PETRI_PLACES=72, PETRI_TRANSITIONS=53} [2023-08-29 01:58:16,920 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 27 predicate places. [2023-08-29 01:58:16,920 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 53 transitions, 266 flow [2023-08-29 01:58:16,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:16,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:16,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:16,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 01:58:16,922 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:16,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:16,922 INFO L85 PathProgramCache]: Analyzing trace with hash -947950083, now seen corresponding path program 4 times [2023-08-29 01:58:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:16,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154562227] [2023-08-29 01:58:16,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:16,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:17,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:17,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154562227] [2023-08-29 01:58:17,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154562227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:17,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:17,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:58:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100826963] [2023-08-29 01:58:17,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:17,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:58:17,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:58:17,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:58:17,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-29 01:58:17,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 53 transitions, 266 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:17,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:17,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-29 01:58:17,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:17,775 INFO L130 PetriNetUnfolder]: 39/149 cut-off events. [2023-08-29 01:58:17,776 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2023-08-29 01:58:17,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 149 events. 39/149 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 455 event pairs, 5 based on Foata normal form. 11/160 useless extension candidates. Maximal degree in co-relation 535. Up to 76 conditions per place. [2023-08-29 01:58:17,777 INFO L137 encePairwiseOnDemand]: 123/131 looper letters, 37 selfloop transitions, 8 changer transitions 31/88 dead transitions. [2023-08-29 01:58:17,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 617 flow [2023-08-29 01:58:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:58:17,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:58:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 675 transitions. [2023-08-29 01:58:17,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5725190839694656 [2023-08-29 01:58:17,779 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 675 transitions. [2023-08-29 01:58:17,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 675 transitions. [2023-08-29 01:58:17,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:17,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 675 transitions. [2023-08-29 01:58:17,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.0) internal successors, (675), 9 states have internal predecessors, (675), 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) [2023-08-29 01:58:17,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2023-08-29 01:58:17,797 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2023-08-29 01:58:17,798 INFO L175 Difference]: Start difference. First operand has 72 places, 53 transitions, 266 flow. Second operand 9 states and 675 transitions. [2023-08-29 01:58:17,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 617 flow [2023-08-29 01:58:17,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 88 transitions, 553 flow, removed 20 selfloop flow, removed 10 redundant places. [2023-08-29 01:58:17,802 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 256 flow [2023-08-29 01:58:17,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=256, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2023-08-29 01:58:17,803 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 25 predicate places. [2023-08-29 01:58:17,803 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 256 flow [2023-08-29 01:58:17,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:17,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:17,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:17,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 01:58:17,804 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:17,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:17,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1082997851, now seen corresponding path program 5 times [2023-08-29 01:58:17,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:17,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588367434] [2023-08-29 01:58:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:17,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:18,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:18,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588367434] [2023-08-29 01:58:18,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588367434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:18,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:18,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:58:18,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676774304] [2023-08-29 01:58:18,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:18,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:58:18,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:18,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:58:18,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:58:18,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-29 01:58:18,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 256 flow. Second operand has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:18,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:18,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-29 01:58:18,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:18,618 INFO L130 PetriNetUnfolder]: 21/92 cut-off events. [2023-08-29 01:58:18,618 INFO L131 PetriNetUnfolder]: For 125/125 co-relation queries the response was YES. [2023-08-29 01:58:18,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 92 events. 21/92 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 0 based on Foata normal form. 11/103 useless extension candidates. Maximal degree in co-relation 317. Up to 27 conditions per place. [2023-08-29 01:58:18,619 INFO L137 encePairwiseOnDemand]: 124/131 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2023-08-29 01:58:18,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 76 transitions, 508 flow [2023-08-29 01:58:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:58:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:58:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 597 transitions. [2023-08-29 01:58:18,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5696564885496184 [2023-08-29 01:58:18,621 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 597 transitions. [2023-08-29 01:58:18,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 597 transitions. [2023-08-29 01:58:18,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:18,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 597 transitions. [2023-08-29 01:58:18,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 74.625) internal successors, (597), 8 states have internal predecessors, (597), 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) [2023-08-29 01:58:18,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:18,624 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2023-08-29 01:58:18,625 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 256 flow. Second operand 8 states and 597 transitions. [2023-08-29 01:58:18,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 76 transitions, 508 flow [2023-08-29 01:58:18,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 457 flow, removed 14 selfloop flow, removed 8 redundant places. [2023-08-29 01:58:18,627 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2023-08-29 01:58:18,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2023-08-29 01:58:18,627 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 21 predicate places. [2023-08-29 01:58:18,627 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2023-08-29 01:58:18,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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) [2023-08-29 01:58:18,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 01:58:18,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 01:58:18,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 01:58:18,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 01:58:18,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 01:58:18,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 01:58:18,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 01:58:18,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 01:58:18,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 01:58:18,632 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:18,636 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:58:18,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:58:18,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:58:18 BasicIcfg [2023-08-29 01:58:18,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:58:18,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:58:18,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:58:18,639 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:58:18,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:07" (3/4) ... [2023-08-29 01:58:18,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 01:58:18,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 01:58:18,650 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-29 01:58:18,650 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 01:58:18,650 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 01:58:18,675 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 01:58:18,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:58:18,676 INFO L158 Benchmark]: Toolchain (without parser) took 12201.49ms. Allocated memory was 62.9MB in the beginning and 211.8MB in the end (delta: 148.9MB). Free memory was 41.6MB in the beginning and 99.2MB in the end (delta: -57.6MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,676 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 40.3MB in the end (delta: 53.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:58:18,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.70ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 41.4MB in the beginning and 49.8MB in the end (delta: -8.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.97ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 47.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,677 INFO L158 Benchmark]: Boogie Preprocessor took 54.22ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 45.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,677 INFO L158 Benchmark]: RCFGBuilder took 528.22ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 54.6MB in the end (delta: -9.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,677 INFO L158 Benchmark]: TraceAbstraction took 10976.28ms. Allocated memory was 83.9MB in the beginning and 211.8MB in the end (delta: 127.9MB). Free memory was 53.5MB in the beginning and 102.4MB in the end (delta: -48.9MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,677 INFO L158 Benchmark]: Witness Printer took 35.99ms. Allocated memory is still 211.8MB. Free memory was 102.4MB in the beginning and 99.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 01:58:18,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 40.3MB in the end (delta: 53.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.70ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 41.4MB in the beginning and 49.8MB in the end (delta: -8.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.97ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 47.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.22ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 45.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.22ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 54.6MB in the end (delta: -9.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10976.28ms. Allocated memory was 83.9MB in the beginning and 211.8MB in the end (delta: 127.9MB). Free memory was 53.5MB in the beginning and 102.4MB in the end (delta: -48.9MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Witness Printer took 35.99ms. Allocated memory is still 211.8MB. Free memory was 102.4MB in the beginning and 99.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 86 PlacesBefore, 45 PlacesAfterwards, 82 TransitionsBefore, 41 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 10402 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1744, independent: 1240, independent conditional: 0, independent unconditional: 1240, dependent: 504, dependent conditional: 0, dependent unconditional: 504, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 472, independent: 428, independent conditional: 0, independent unconditional: 428, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1744, independent: 812, independent conditional: 0, independent unconditional: 812, dependent: 460, dependent conditional: 0, dependent unconditional: 460, unknown: 472, unknown conditional: 0, unknown unconditional: 472] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 117 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1789 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1262 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 216 mSDsCounter, 596 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4944 IncrementalHoareTripleChecker+Invalid, 5540 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 596 mSolverCounterUnsat, 99 mSDtfsCounter, 4944 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1592occurred in iteration=4, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 3388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 01:58:18,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE