./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_10-ptrmunge_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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:56:42,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:56:42,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:56:42,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:56:42,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:56:42,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:56:42,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:56:42,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:56:42,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:56:42,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:56:42,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:56:42,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:56:42,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:56:42,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:56:42,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:56:42,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:56:42,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:56:42,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:56:42,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:56:42,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:56:42,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:56:42,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:56:42,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:56:42,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:56:42,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:56:42,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:56:42,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:56:42,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:56:42,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:56:42,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:56:42,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:56:42,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:56:42,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:56:42,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:56:42,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:56:42,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:56:42,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:56:42,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:56:42,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:56:42,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:56:42,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:56:42,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:56:42,475 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:56:42,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:56:42,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:56:42,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:56:42,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:56:42,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:56:42,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:56:42,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:56:42,478 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:56:42,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:56:42,479 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:56:42,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:56:42,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:56:42,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:56:42,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:56:42,481 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:56:42,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:56:42,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:56:42,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:56:42,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:56:42,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:42,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:56:42,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:56:42,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:56:42,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:56:42,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:56:42,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:56:42,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:56:42,483 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:56:42,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:56:42,483 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:56:42,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:56:42,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:56:42,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:56:42,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:56:42,720 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:56:42,720 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:56:42,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-31 19:56:43,733 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:56:43,981 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:56:43,981 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-31 19:56:43,994 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2869aa12e/3fa2aa48aeae4e93b3edc0ac6e14bdf7/FLAGeed2f14cd [2023-08-31 19:56:44,003 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2869aa12e/3fa2aa48aeae4e93b3edc0ac6e14bdf7 [2023-08-31 19:56:44,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:56:44,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:56:44,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:44,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:56:44,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:56:44,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cbbae95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44, skipping insertion in model container [2023-08-31 19:56:44,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:56:44,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:56:44,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:44,320 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:56:44,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:44,409 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:56:44,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44 WrapperNode [2023-08-31 19:56:44,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:44,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:44,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:56:44,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:56:44,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,470 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2023-08-31 19:56:44,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:44,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:56:44,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:56:44,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:56:44,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,506 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:56:44,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:56:44,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:56:44,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:56:44,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (1/1) ... [2023-08-31 19:56:44,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:44,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:56:44,579 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) [2023-08-31 19:56:44,587 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 [2023-08-31 19:56:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:56:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:56:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:56:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:56:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:56:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:56:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:56:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:56:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:56:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:56:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:56:44,610 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:56:44,721 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:56:44,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:56:44,934 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:56:44,939 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:56:44,939 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:56:44,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:44 BoogieIcfgContainer [2023-08-31 19:56:44,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:56:44,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:56:44,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:56:44,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:56:44,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:56:44" (1/3) ... [2023-08-31 19:56:44,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170b9eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:44, skipping insertion in model container [2023-08-31 19:56:44,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:44" (2/3) ... [2023-08-31 19:56:44,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170b9eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:44, skipping insertion in model container [2023-08-31 19:56:44,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:44" (3/3) ... [2023-08-31 19:56:44,946 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2023-08-31 19:56:44,951 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:56:44,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:56:44,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-31 19:56:44,958 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:56:44,999 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:56:45,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 206 flow [2023-08-31 19:56:45,072 INFO L130 PetriNetUnfolder]: 0/98 cut-off events. [2023-08-31 19:56:45,072 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:56:45,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 0/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-31 19:56:45,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 99 transitions, 206 flow [2023-08-31 19:56:45,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 91 transitions, 185 flow [2023-08-31 19:56:45,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:56:45,085 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 91 transitions, 185 flow [2023-08-31 19:56:45,102 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 91 transitions, 185 flow [2023-08-31 19:56:45,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 185 flow [2023-08-31 19:56:45,122 INFO L130 PetriNetUnfolder]: 0/91 cut-off events. [2023-08-31 19:56:45,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:45,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:56:45,124 INFO L119 LiptonReduction]: Number of co-enabled transitions 1836 [2023-08-31 19:56:46,998 INFO L134 LiptonReduction]: Checked pairs total: 10947 [2023-08-31 19:56:46,999 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-31 19:56:47,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:56:47,011 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;@3af3160f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:56:47,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-31 19:56:47,015 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-31 19:56:47,015 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:47,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:47,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:47,016 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)] === [2023-08-31 19:56:47,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:47,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1539204769, now seen corresponding path program 1 times [2023-08-31 19:56:47,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:47,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116146165] [2023-08-31 19:56:47,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:47,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:47,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:47,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116146165] [2023-08-31 19:56:47,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116146165] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:47,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:47,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:47,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713943147] [2023-08-31 19:56:47,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:47,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:47,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:47,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:47,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-31 19:56:47,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-08-31 19:56:47,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:47,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-31 19:56:47,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:47,725 INFO L130 PetriNetUnfolder]: 182/519 cut-off events. [2023-08-31 19:56:47,725 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:47,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 519 events. 182/519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2536 event pairs, 83 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 912. Up to 289 conditions per place. [2023-08-31 19:56:47,730 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 51 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-31 19:56:47,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 323 flow [2023-08-31 19:56:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-31 19:56:47,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6196868008948546 [2023-08-31 19:56:47,740 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-31 19:56:47,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-31 19:56:47,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:47,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-31 19:56:47,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2023-08-31 19:56:47,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:47,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:47,750 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 554 transitions. [2023-08-31 19:56:47,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 323 flow [2023-08-31 19:56:47,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:47,753 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-31 19:56:47,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, 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} [2023-08-31 19:56:47,757 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-31 19:56:47,757 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-31 19:56:47,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-08-31 19:56:47,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:47,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:47,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:56:47,758 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)] === [2023-08-31 19:56:47,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:47,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1776116605, now seen corresponding path program 1 times [2023-08-31 19:56:47,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:47,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74354862] [2023-08-31 19:56:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:47,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:47,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:47,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:47,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74354862] [2023-08-31 19:56:47,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74354862] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:47,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:47,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:47,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674598972] [2023-08-31 19:56:47,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:47,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:47,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:48,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-31 19:56:48,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-08-31 19:56:48,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:48,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-31 19:56:48,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:48,193 INFO L130 PetriNetUnfolder]: 214/619 cut-off events. [2023-08-31 19:56:48,193 INFO L131 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2023-08-31 19:56:48,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 619 events. 214/619 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3221 event pairs, 86 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1292. Up to 348 conditions per place. [2023-08-31 19:56:48,199 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 60 selfloop transitions, 26 changer transitions 0/104 dead transitions. [2023-08-31 19:56:48,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 104 transitions, 508 flow [2023-08-31 19:56:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2023-08-31 19:56:48,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6152125279642058 [2023-08-31 19:56:48,203 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2023-08-31 19:56:48,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2023-08-31 19:56:48,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:48,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2023-08-31 19:56:48,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 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) [2023-08-31 19:56:48,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:48,207 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:48,207 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 550 transitions. [2023-08-31 19:56:48,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 104 transitions, 508 flow [2023-08-31 19:56:48,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 104 transitions, 508 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:48,213 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-31 19:56:48,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, 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} [2023-08-31 19:56:48,214 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-31 19:56:48,214 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-31 19:56:48,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-08-31 19:56:48,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:48,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:48,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:56:48,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:48,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash 389650683, now seen corresponding path program 1 times [2023-08-31 19:56:48,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:48,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59244098] [2023-08-31 19:56:48,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:48,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:48,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:48,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59244098] [2023-08-31 19:56:48,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59244098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:48,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:48,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:48,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096691321] [2023-08-31 19:56:48,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:48,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:48,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:48,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:48,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:48,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-31 19:56:48,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2023-08-31 19:56:48,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:48,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-31 19:56:48,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:48,676 INFO L130 PetriNetUnfolder]: 416/961 cut-off events. [2023-08-31 19:56:48,676 INFO L131 PetriNetUnfolder]: For 608/611 co-relation queries the response was YES. [2023-08-31 19:56:48,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 961 events. 416/961 cut-off events. For 608/611 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4872 event pairs, 176 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 2651. Up to 740 conditions per place. [2023-08-31 19:56:48,681 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 53 changer transitions 0/150 dead transitions. [2023-08-31 19:56:48,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 150 transitions, 964 flow [2023-08-31 19:56:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2023-08-31 19:56:48,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5738255033557047 [2023-08-31 19:56:48,683 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2023-08-31 19:56:48,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2023-08-31 19:56:48,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:48,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2023-08-31 19:56:48,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2023-08-31 19:56:48,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:48,686 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:48,686 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 513 transitions. [2023-08-31 19:56:48,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 150 transitions, 964 flow [2023-08-31 19:56:48,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 150 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:48,691 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 892 flow [2023-08-31 19:56:48,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-08-31 19:56:48,692 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-31 19:56:48,692 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 892 flow [2023-08-31 19:56:48,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2023-08-31 19:56:48,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:48,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:48,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:56:48,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:48,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash 195939132, now seen corresponding path program 1 times [2023-08-31 19:56:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179660330] [2023-08-31 19:56:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:48,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:48,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179660330] [2023-08-31 19:56:48,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179660330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:48,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:48,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256896141] [2023-08-31 19:56:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:48,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:48,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-31 19:56:48,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 892 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2023-08-31 19:56:48,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:48,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-31 19:56:48,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:49,226 INFO L130 PetriNetUnfolder]: 527/1189 cut-off events. [2023-08-31 19:56:49,226 INFO L131 PetriNetUnfolder]: For 1459/1476 co-relation queries the response was YES. [2023-08-31 19:56:49,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 1189 events. 527/1189 cut-off events. For 1459/1476 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6290 event pairs, 151 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 3983. Up to 901 conditions per place. [2023-08-31 19:56:49,232 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 138 selfloop transitions, 83 changer transitions 0/228 dead transitions. [2023-08-31 19:56:49,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 228 transitions, 1804 flow [2023-08-31 19:56:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:49,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-08-31 19:56:49,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5961968680089486 [2023-08-31 19:56:49,236 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-08-31 19:56:49,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-08-31 19:56:49,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:49,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-08-31 19:56:49,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 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) [2023-08-31 19:56:49,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:49,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:56:49,239 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 892 flow. Second operand 6 states and 533 transitions. [2023-08-31 19:56:49,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 228 transitions, 1804 flow [2023-08-31 19:56:49,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 228 transitions, 1748 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:49,247 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1600 flow [2023-08-31 19:56:49,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1600, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-08-31 19:56:49,248 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-31 19:56:49,248 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1600 flow [2023-08-31 19:56:49,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2023-08-31 19:56:49,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:49,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:49,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:56:49,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:49,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:49,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1709265970, now seen corresponding path program 1 times [2023-08-31 19:56:49,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:49,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204280223] [2023-08-31 19:56:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:49,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:49,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:49,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204280223] [2023-08-31 19:56:49,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204280223] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:49,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:49,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:49,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588056483] [2023-08-31 19:56:49,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:49,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:49,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:49,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:49,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:49,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:49,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 199 transitions, 1600 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:49,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:49,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:49,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:50,300 INFO L130 PetriNetUnfolder]: 803/1970 cut-off events. [2023-08-31 19:56:50,301 INFO L131 PetriNetUnfolder]: For 4043/4117 co-relation queries the response was YES. [2023-08-31 19:56:50,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7888 conditions, 1970 events. 803/1970 cut-off events. For 4043/4117 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13288 event pairs, 71 based on Foata normal form. 24/1953 useless extension candidates. Maximal degree in co-relation 7860. Up to 694 conditions per place. [2023-08-31 19:56:50,314 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 301 selfloop transitions, 64 changer transitions 0/418 dead transitions. [2023-08-31 19:56:50,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 418 transitions, 4038 flow [2023-08-31 19:56:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:56:50,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:56:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2023-08-31 19:56:50,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5784014643075046 [2023-08-31 19:56:50,316 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2023-08-31 19:56:50,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2023-08-31 19:56:50,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:50,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2023-08-31 19:56:50,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 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) [2023-08-31 19:56:50,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:56:50,320 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:56:50,320 INFO L175 Difference]: Start difference. First operand has 84 places, 199 transitions, 1600 flow. Second operand 11 states and 948 transitions. [2023-08-31 19:56:50,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 418 transitions, 4038 flow [2023-08-31 19:56:50,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 418 transitions, 3892 flow, removed 73 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:50,345 INFO L231 Difference]: Finished difference. Result has 101 places, 252 transitions, 2332 flow [2023-08-31 19:56:50,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2332, PETRI_PLACES=101, PETRI_TRANSITIONS=252} [2023-08-31 19:56:50,346 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 56 predicate places. [2023-08-31 19:56:50,346 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 252 transitions, 2332 flow [2023-08-31 19:56:50,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:50,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:50,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:50,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:56:50,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:50,347 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:50,347 INFO L85 PathProgramCache]: Analyzing trace with hash 191672506, now seen corresponding path program 2 times [2023-08-31 19:56:50,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:50,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30336482] [2023-08-31 19:56:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:50,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:50,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:50,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30336482] [2023-08-31 19:56:50,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30336482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:50,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:50,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:50,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637059529] [2023-08-31 19:56:50,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:50,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:50,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:50,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:50,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:50,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 252 transitions, 2332 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:50,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:50,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:50,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:51,373 INFO L130 PetriNetUnfolder]: 855/2074 cut-off events. [2023-08-31 19:56:51,373 INFO L131 PetriNetUnfolder]: For 6273/6354 co-relation queries the response was YES. [2023-08-31 19:56:51,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8901 conditions, 2074 events. 855/2074 cut-off events. For 6273/6354 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 14096 event pairs, 91 based on Foata normal form. 16/2045 useless extension candidates. Maximal degree in co-relation 8864. Up to 1237 conditions per place. [2023-08-31 19:56:51,387 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 181 selfloop transitions, 88 changer transitions 0/322 dead transitions. [2023-08-31 19:56:51,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 322 transitions, 3421 flow [2023-08-31 19:56:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:56:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:56:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 780 transitions. [2023-08-31 19:56:51,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5816554809843401 [2023-08-31 19:56:51,389 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 780 transitions. [2023-08-31 19:56:51,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 780 transitions. [2023-08-31 19:56:51,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:51,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 780 transitions. [2023-08-31 19:56:51,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.66666666666667) internal successors, (780), 9 states have internal predecessors, (780), 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) [2023-08-31 19:56:51,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:56:51,392 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:56:51,393 INFO L175 Difference]: Start difference. First operand has 101 places, 252 transitions, 2332 flow. Second operand 9 states and 780 transitions. [2023-08-31 19:56:51,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 322 transitions, 3421 flow [2023-08-31 19:56:51,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 322 transitions, 3416 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:51,419 INFO L231 Difference]: Finished difference. Result has 111 places, 273 transitions, 2980 flow [2023-08-31 19:56:51,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2327, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2980, PETRI_PLACES=111, PETRI_TRANSITIONS=273} [2023-08-31 19:56:51,421 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 66 predicate places. [2023-08-31 19:56:51,421 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 273 transitions, 2980 flow [2023-08-31 19:56:51,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:51,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:51,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:51,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:56:51,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:51,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:51,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1081218985, now seen corresponding path program 1 times [2023-08-31 19:56:51,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:51,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248320482] [2023-08-31 19:56:51,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:51,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:51,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:51,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248320482] [2023-08-31 19:56:51,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248320482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:51,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:51,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:51,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463934797] [2023-08-31 19:56:51,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:51,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:51,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:51,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:51,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:52,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:52,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 273 transitions, 2980 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:52,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:52,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:52,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:52,482 INFO L130 PetriNetUnfolder]: 929/2221 cut-off events. [2023-08-31 19:56:52,482 INFO L131 PetriNetUnfolder]: For 9139/9187 co-relation queries the response was YES. [2023-08-31 19:56:52,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10018 conditions, 2221 events. 929/2221 cut-off events. For 9139/9187 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 15036 event pairs, 83 based on Foata normal form. 16/2190 useless extension candidates. Maximal degree in co-relation 9977. Up to 797 conditions per place. [2023-08-31 19:56:52,500 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 336 selfloop transitions, 70 changer transitions 0/489 dead transitions. [2023-08-31 19:56:52,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 489 transitions, 5479 flow [2023-08-31 19:56:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:56:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:56:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 867 transitions. [2023-08-31 19:56:52,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5818791946308725 [2023-08-31 19:56:52,503 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 867 transitions. [2023-08-31 19:56:52,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 867 transitions. [2023-08-31 19:56:52,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:52,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 867 transitions. [2023-08-31 19:56:52,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.7) internal successors, (867), 10 states have internal predecessors, (867), 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) [2023-08-31 19:56:52,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:52,508 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:52,508 INFO L175 Difference]: Start difference. First operand has 111 places, 273 transitions, 2980 flow. Second operand 10 states and 867 transitions. [2023-08-31 19:56:52,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 489 transitions, 5479 flow [2023-08-31 19:56:52,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 489 transitions, 5410 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-31 19:56:52,539 INFO L231 Difference]: Finished difference. Result has 121 places, 326 transitions, 3779 flow [2023-08-31 19:56:52,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2924, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3779, PETRI_PLACES=121, PETRI_TRANSITIONS=326} [2023-08-31 19:56:52,540 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2023-08-31 19:56:52,540 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 326 transitions, 3779 flow [2023-08-31 19:56:52,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:52,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:52,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:52,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:56:52,541 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:52,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:52,541 INFO L85 PathProgramCache]: Analyzing trace with hash 842864954, now seen corresponding path program 3 times [2023-08-31 19:56:52,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:52,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277436079] [2023-08-31 19:56:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:52,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:52,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:52,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:52,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277436079] [2023-08-31 19:56:52,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277436079] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:52,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:52,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:52,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222439575] [2023-08-31 19:56:52,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:52,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:52,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:53,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:53,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 326 transitions, 3779 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:53,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:53,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:53,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:53,725 INFO L130 PetriNetUnfolder]: 1008/2408 cut-off events. [2023-08-31 19:56:53,726 INFO L131 PetriNetUnfolder]: For 12584/12639 co-relation queries the response was YES. [2023-08-31 19:56:53,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11484 conditions, 2408 events. 1008/2408 cut-off events. For 12584/12639 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16675 event pairs, 101 based on Foata normal form. 14/2368 useless extension candidates. Maximal degree in co-relation 11437. Up to 1349 conditions per place. [2023-08-31 19:56:53,752 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 219 selfloop transitions, 117 changer transitions 0/419 dead transitions. [2023-08-31 19:56:53,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 419 transitions, 5320 flow [2023-08-31 19:56:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:56:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:56:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 866 transitions. [2023-08-31 19:56:53,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5812080536912752 [2023-08-31 19:56:53,755 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 866 transitions. [2023-08-31 19:56:53,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 866 transitions. [2023-08-31 19:56:53,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:53,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 866 transitions. [2023-08-31 19:56:53,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.6) internal successors, (866), 10 states have internal predecessors, (866), 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) [2023-08-31 19:56:53,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:53,760 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:53,760 INFO L175 Difference]: Start difference. First operand has 121 places, 326 transitions, 3779 flow. Second operand 10 states and 866 transitions. [2023-08-31 19:56:53,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 419 transitions, 5320 flow [2023-08-31 19:56:53,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 419 transitions, 5309 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:53,801 INFO L231 Difference]: Finished difference. Result has 133 places, 358 transitions, 4795 flow [2023-08-31 19:56:53,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3772, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4795, PETRI_PLACES=133, PETRI_TRANSITIONS=358} [2023-08-31 19:56:53,804 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 88 predicate places. [2023-08-31 19:56:53,804 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 358 transitions, 4795 flow [2023-08-31 19:56:53,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:53,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:53,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:53,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:56:53,805 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:53,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2076080314, now seen corresponding path program 4 times [2023-08-31 19:56:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:53,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524809740] [2023-08-31 19:56:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:53,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:53,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:53,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524809740] [2023-08-31 19:56:53,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524809740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:53,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:53,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:53,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220512509] [2023-08-31 19:56:53,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:53,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:53,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:53,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:53,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:54,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:54,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 358 transitions, 4795 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:54,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:54,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:54,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:54,875 INFO L130 PetriNetUnfolder]: 1043/2497 cut-off events. [2023-08-31 19:56:54,876 INFO L131 PetriNetUnfolder]: For 18636/18775 co-relation queries the response was YES. [2023-08-31 19:56:54,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12691 conditions, 2497 events. 1043/2497 cut-off events. For 18636/18775 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 17550 event pairs, 97 based on Foata normal form. 45/2483 useless extension candidates. Maximal degree in co-relation 12639. Up to 733 conditions per place. [2023-08-31 19:56:54,897 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 352 selfloop transitions, 103 changer transitions 0/538 dead transitions. [2023-08-31 19:56:54,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 538 transitions, 7165 flow [2023-08-31 19:56:54,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:56:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:56:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 872 transitions. [2023-08-31 19:56:54,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5852348993288591 [2023-08-31 19:56:54,899 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 872 transitions. [2023-08-31 19:56:54,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 872 transitions. [2023-08-31 19:56:54,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:54,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 872 transitions. [2023-08-31 19:56:54,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.2) internal successors, (872), 10 states have internal predecessors, (872), 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) [2023-08-31 19:56:54,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:54,903 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:54,903 INFO L175 Difference]: Start difference. First operand has 133 places, 358 transitions, 4795 flow. Second operand 10 states and 872 transitions. [2023-08-31 19:56:54,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 538 transitions, 7165 flow [2023-08-31 19:56:54,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 538 transitions, 7077 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-31 19:56:54,958 INFO L231 Difference]: Finished difference. Result has 145 places, 384 transitions, 5487 flow [2023-08-31 19:56:54,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4722, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5487, PETRI_PLACES=145, PETRI_TRANSITIONS=384} [2023-08-31 19:56:54,960 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 100 predicate places. [2023-08-31 19:56:54,960 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 384 transitions, 5487 flow [2023-08-31 19:56:54,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:54,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:54,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:54,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:56:54,961 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:54,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1402981190, now seen corresponding path program 5 times [2023-08-31 19:56:54,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:54,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003621685] [2023-08-31 19:56:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:54,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:55,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:55,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:55,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003621685] [2023-08-31 19:56:55,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003621685] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:55,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:55,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:55,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226263515] [2023-08-31 19:56:55,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:55,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:55,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:55,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:55,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 384 transitions, 5487 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:55,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:55,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:55,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:56,136 INFO L130 PetriNetUnfolder]: 1138/2727 cut-off events. [2023-08-31 19:56:56,137 INFO L131 PetriNetUnfolder]: For 27774/27913 co-relation queries the response was YES. [2023-08-31 19:56:56,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14788 conditions, 2727 events. 1138/2727 cut-off events. For 27774/27913 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 19577 event pairs, 115 based on Foata normal form. 37/2694 useless extension candidates. Maximal degree in co-relation 14729. Up to 1444 conditions per place. [2023-08-31 19:56:56,158 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 267 selfloop transitions, 145 changer transitions 0/495 dead transitions. [2023-08-31 19:56:56,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 495 transitions, 7537 flow [2023-08-31 19:56:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:56:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:56:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-08-31 19:56:56,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825503355704698 [2023-08-31 19:56:56,162 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-08-31 19:56:56,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-08-31 19:56:56,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:56,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-08-31 19:56:56,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 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) [2023-08-31 19:56:56,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:56,170 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:56,170 INFO L175 Difference]: Start difference. First operand has 145 places, 384 transitions, 5487 flow. Second operand 10 states and 868 transitions. [2023-08-31 19:56:56,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 495 transitions, 7537 flow [2023-08-31 19:56:56,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 495 transitions, 7436 flow, removed 48 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:56,246 INFO L231 Difference]: Finished difference. Result has 158 places, 425 transitions, 6837 flow [2023-08-31 19:56:56,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5396, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6837, PETRI_PLACES=158, PETRI_TRANSITIONS=425} [2023-08-31 19:56:56,247 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 113 predicate places. [2023-08-31 19:56:56,248 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 425 transitions, 6837 flow [2023-08-31 19:56:56,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:56,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:56,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:56,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:56:56,248 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:56,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:56,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1212173786, now seen corresponding path program 1 times [2023-08-31 19:56:56,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:56,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937937365] [2023-08-31 19:56:56,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:56,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:56,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:56,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937937365] [2023-08-31 19:56:56,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937937365] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:56,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:56,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:56,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812376151] [2023-08-31 19:56:56,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:56,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:56,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:56,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:56,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:56,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:56:56,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 425 transitions, 6837 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:56:56,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:56,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:56:56,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:57,714 INFO L130 PetriNetUnfolder]: 1710/3768 cut-off events. [2023-08-31 19:56:57,714 INFO L131 PetriNetUnfolder]: For 40498/40556 co-relation queries the response was YES. [2023-08-31 19:56:57,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21365 conditions, 3768 events. 1710/3768 cut-off events. For 40498/40556 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 26646 event pairs, 355 based on Foata normal form. 23/3731 useless extension candidates. Maximal degree in co-relation 21300. Up to 2593 conditions per place. [2023-08-31 19:56:57,743 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 407 selfloop transitions, 230 changer transitions 0/648 dead transitions. [2023-08-31 19:56:57,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 648 transitions, 9881 flow [2023-08-31 19:56:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:56:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:56:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2023-08-31 19:56:57,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5503355704697986 [2023-08-31 19:56:57,746 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2023-08-31 19:56:57,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2023-08-31 19:56:57,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:57,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2023-08-31 19:56:57,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 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) [2023-08-31 19:56:57,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:57,749 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:56:57,750 INFO L175 Difference]: Start difference. First operand has 158 places, 425 transitions, 6837 flow. Second operand 10 states and 820 transitions. [2023-08-31 19:56:57,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 648 transitions, 9881 flow [2023-08-31 19:56:57,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 648 transitions, 9746 flow, removed 44 selfloop flow, removed 4 redundant places. [2023-08-31 19:56:57,855 INFO L231 Difference]: Finished difference. Result has 169 places, 509 transitions, 8285 flow [2023-08-31 19:56:57,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=6702, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8285, PETRI_PLACES=169, PETRI_TRANSITIONS=509} [2023-08-31 19:56:57,858 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 124 predicate places. [2023-08-31 19:56:57,858 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 509 transitions, 8285 flow [2023-08-31 19:56:57,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:56:57,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:57,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:57,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 19:56:57,859 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:57,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:57,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1244559529, now seen corresponding path program 2 times [2023-08-31 19:56:57,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:57,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774378848] [2023-08-31 19:56:57,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:57,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:58,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:58,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774378848] [2023-08-31 19:56:58,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774378848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:58,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:58,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:58,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557443964] [2023-08-31 19:56:58,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:58,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:58,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:58,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:58,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:58,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 509 transitions, 8285 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:58,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:58,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:58,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:58,996 INFO L130 PetriNetUnfolder]: 1392/3270 cut-off events. [2023-08-31 19:56:58,996 INFO L131 PetriNetUnfolder]: For 41898/42000 co-relation queries the response was YES. [2023-08-31 19:56:59,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19372 conditions, 3270 events. 1392/3270 cut-off events. For 41898/42000 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 24229 event pairs, 134 based on Foata normal form. 28/3234 useless extension candidates. Maximal degree in co-relation 19302. Up to 2060 conditions per place. [2023-08-31 19:56:59,023 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 299 selfloop transitions, 154 changer transitions 0/589 dead transitions. [2023-08-31 19:56:59,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 589 transitions, 10106 flow [2023-08-31 19:56:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:56:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:56:59,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 774 transitions. [2023-08-31 19:56:59,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5771812080536913 [2023-08-31 19:56:59,026 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 774 transitions. [2023-08-31 19:56:59,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 774 transitions. [2023-08-31 19:56:59,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:59,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 774 transitions. [2023-08-31 19:56:59,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 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) [2023-08-31 19:56:59,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:56:59,030 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:56:59,030 INFO L175 Difference]: Start difference. First operand has 169 places, 509 transitions, 8285 flow. Second operand 9 states and 774 transitions. [2023-08-31 19:56:59,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 589 transitions, 10106 flow [2023-08-31 19:56:59,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 589 transitions, 10067 flow, removed 19 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:59,145 INFO L231 Difference]: Finished difference. Result has 179 places, 532 transitions, 9286 flow [2023-08-31 19:56:59,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=8252, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9286, PETRI_PLACES=179, PETRI_TRANSITIONS=532} [2023-08-31 19:56:59,147 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 134 predicate places. [2023-08-31 19:56:59,147 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 532 transitions, 9286 flow [2023-08-31 19:56:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:59,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:59,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:59,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 19:56:59,147 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:59,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:59,148 INFO L85 PathProgramCache]: Analyzing trace with hash 759309596, now seen corresponding path program 6 times [2023-08-31 19:56:59,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:59,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784717539] [2023-08-31 19:56:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:59,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:59,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:59,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784717539] [2023-08-31 19:56:59,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784717539] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:59,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:59,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:56:59,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89860429] [2023-08-31 19:56:59,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:59,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:56:59,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:59,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:56:59,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:56:59,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:56:59,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 532 transitions, 9286 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:56:59,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:59,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:56:59,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:00,378 INFO L130 PetriNetUnfolder]: 1435/3366 cut-off events. [2023-08-31 19:57:00,378 INFO L131 PetriNetUnfolder]: For 55172/55378 co-relation queries the response was YES. [2023-08-31 19:57:00,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21038 conditions, 3366 events. 1435/3366 cut-off events. For 55172/55378 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 25118 event pairs, 140 based on Foata normal form. 47/3337 useless extension candidates. Maximal degree in co-relation 20964. Up to 1781 conditions per place. [2023-08-31 19:57:00,401 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 356 selfloop transitions, 169 changer transitions 0/637 dead transitions. [2023-08-31 19:57:00,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 637 transitions, 11646 flow [2023-08-31 19:57:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-08-31 19:57:00,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825503355704698 [2023-08-31 19:57:00,403 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-08-31 19:57:00,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-08-31 19:57:00,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:00,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-08-31 19:57:00,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 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) [2023-08-31 19:57:00,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:00,407 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:00,407 INFO L175 Difference]: Start difference. First operand has 179 places, 532 transitions, 9286 flow. Second operand 10 states and 868 transitions. [2023-08-31 19:57:00,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 637 transitions, 11646 flow [2023-08-31 19:57:00,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 637 transitions, 11440 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-31 19:57:00,526 INFO L231 Difference]: Finished difference. Result has 186 places, 561 transitions, 10524 flow [2023-08-31 19:57:00,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=9087, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10524, PETRI_PLACES=186, PETRI_TRANSITIONS=561} [2023-08-31 19:57:00,526 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 141 predicate places. [2023-08-31 19:57:00,526 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 561 transitions, 10524 flow [2023-08-31 19:57:00,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:00,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:00,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:00,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 19:57:00,527 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:00,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash -629270941, now seen corresponding path program 3 times [2023-08-31 19:57:00,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:00,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863155905] [2023-08-31 19:57:00,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:00,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:00,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:00,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863155905] [2023-08-31 19:57:00,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863155905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:00,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:00,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:00,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083558243] [2023-08-31 19:57:00,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:00,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:00,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:01,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:57:01,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 561 transitions, 10524 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:01,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:01,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:57:01,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:01,850 INFO L130 PetriNetUnfolder]: 1522/3541 cut-off events. [2023-08-31 19:57:01,850 INFO L131 PetriNetUnfolder]: For 60321/60452 co-relation queries the response was YES. [2023-08-31 19:57:01,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22529 conditions, 3541 events. 1522/3541 cut-off events. For 60321/60452 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 26573 event pairs, 194 based on Foata normal form. 43/3513 useless extension candidates. Maximal degree in co-relation 22451. Up to 2188 conditions per place. [2023-08-31 19:57:01,952 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 335 selfloop transitions, 190 changer transitions 0/663 dead transitions. [2023-08-31 19:57:01,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 663 transitions, 12834 flow [2023-08-31 19:57:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 859 transitions. [2023-08-31 19:57:01,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5765100671140939 [2023-08-31 19:57:01,956 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 859 transitions. [2023-08-31 19:57:01,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 859 transitions. [2023-08-31 19:57:01,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:01,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 859 transitions. [2023-08-31 19:57:01,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 85.9) internal successors, (859), 10 states have internal predecessors, (859), 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) [2023-08-31 19:57:01,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:01,960 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:01,961 INFO L175 Difference]: Start difference. First operand has 186 places, 561 transitions, 10524 flow. Second operand 10 states and 859 transitions. [2023-08-31 19:57:01,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 663 transitions, 12834 flow [2023-08-31 19:57:02,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 663 transitions, 12650 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:02,093 INFO L231 Difference]: Finished difference. Result has 196 places, 595 transitions, 11820 flow [2023-08-31 19:57:02,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=10343, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11820, PETRI_PLACES=196, PETRI_TRANSITIONS=595} [2023-08-31 19:57:02,094 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 151 predicate places. [2023-08-31 19:57:02,094 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 595 transitions, 11820 flow [2023-08-31 19:57:02,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:02,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:02,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:02,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 19:57:02,094 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:02,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:02,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1152685874, now seen corresponding path program 1 times [2023-08-31 19:57:02,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:02,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265811522] [2023-08-31 19:57:02,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:02,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:02,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:02,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265811522] [2023-08-31 19:57:02,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265811522] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:02,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:02,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:02,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102802070] [2023-08-31 19:57:02,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:02,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:02,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:02,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:02,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:02,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:02,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 595 transitions, 11820 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:02,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:02,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:02,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:03,454 INFO L130 PetriNetUnfolder]: 2054/4522 cut-off events. [2023-08-31 19:57:03,455 INFO L131 PetriNetUnfolder]: For 77374/77418 co-relation queries the response was YES. [2023-08-31 19:57:03,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29662 conditions, 4522 events. 2054/4522 cut-off events. For 77374/77418 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33508 event pairs, 464 based on Foata normal form. 28/4476 useless extension candidates. Maximal degree in co-relation 29580. Up to 3199 conditions per place. [2023-08-31 19:57:03,492 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 499 selfloop transitions, 308 changer transitions 0/823 dead transitions. [2023-08-31 19:57:03,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 823 transitions, 16406 flow [2023-08-31 19:57:03,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 797 transitions. [2023-08-31 19:57:03,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348993288590604 [2023-08-31 19:57:03,494 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 797 transitions. [2023-08-31 19:57:03,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 797 transitions. [2023-08-31 19:57:03,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:03,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 797 transitions. [2023-08-31 19:57:03,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.7) internal successors, (797), 10 states have internal predecessors, (797), 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) [2023-08-31 19:57:03,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:03,497 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:03,497 INFO L175 Difference]: Start difference. First operand has 196 places, 595 transitions, 11820 flow. Second operand 10 states and 797 transitions. [2023-08-31 19:57:03,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 823 transitions, 16406 flow [2023-08-31 19:57:03,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 823 transitions, 16298 flow, removed 21 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:03,757 INFO L231 Difference]: Finished difference. Result has 207 places, 689 transitions, 14279 flow [2023-08-31 19:57:03,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=11712, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14279, PETRI_PLACES=207, PETRI_TRANSITIONS=689} [2023-08-31 19:57:03,757 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 162 predicate places. [2023-08-31 19:57:03,757 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 689 transitions, 14279 flow [2023-08-31 19:57:03,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:03,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:03,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:03,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 19:57:03,758 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:03,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash 274183847, now seen corresponding path program 4 times [2023-08-31 19:57:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419274698] [2023-08-31 19:57:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:03,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:03,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:03,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419274698] [2023-08-31 19:57:03,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419274698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:03,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:03,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:03,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8729556] [2023-08-31 19:57:03,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:03,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:03,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:03,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:03,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:04,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:57:04,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 689 transitions, 14279 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:04,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:04,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:57:04,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:05,198 INFO L130 PetriNetUnfolder]: 1690/3918 cut-off events. [2023-08-31 19:57:05,198 INFO L131 PetriNetUnfolder]: For 77143/77290 co-relation queries the response was YES. [2023-08-31 19:57:05,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27137 conditions, 3918 events. 1690/3918 cut-off events. For 77143/77290 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 30037 event pairs, 148 based on Foata normal form. 54/3896 useless extension candidates. Maximal degree in co-relation 27049. Up to 1244 conditions per place. [2023-08-31 19:57:05,230 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 583 selfloop transitions, 148 changer transitions 0/893 dead transitions. [2023-08-31 19:57:05,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 893 transitions, 18024 flow [2023-08-31 19:57:05,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:57:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:57:05,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 944 transitions. [2023-08-31 19:57:05,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5759609517998779 [2023-08-31 19:57:05,232 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 944 transitions. [2023-08-31 19:57:05,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 944 transitions. [2023-08-31 19:57:05,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:05,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 944 transitions. [2023-08-31 19:57:05,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.81818181818181) internal successors, (944), 11 states have internal predecessors, (944), 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) [2023-08-31 19:57:05,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:57:05,235 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:57:05,236 INFO L175 Difference]: Start difference. First operand has 207 places, 689 transitions, 14279 flow. Second operand 11 states and 944 transitions. [2023-08-31 19:57:05,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 893 transitions, 18024 flow [2023-08-31 19:57:05,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 893 transitions, 17957 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:05,465 INFO L231 Difference]: Finished difference. Result has 222 places, 719 transitions, 15283 flow [2023-08-31 19:57:05,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=14222, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15283, PETRI_PLACES=222, PETRI_TRANSITIONS=719} [2023-08-31 19:57:05,465 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 177 predicate places. [2023-08-31 19:57:05,466 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 719 transitions, 15283 flow [2023-08-31 19:57:05,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:05,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:05,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:05,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 19:57:05,466 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:05,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:05,467 INFO L85 PathProgramCache]: Analyzing trace with hash -523263794, now seen corresponding path program 2 times [2023-08-31 19:57:05,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:05,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601837099] [2023-08-31 19:57:05,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:05,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:05,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:05,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601837099] [2023-08-31 19:57:05,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601837099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:05,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:05,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:05,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361006897] [2023-08-31 19:57:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:05,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:05,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:05,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:05,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:05,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:05,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 719 transitions, 15283 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:05,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:05,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:05,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:07,150 INFO L130 PetriNetUnfolder]: 2069/4526 cut-off events. [2023-08-31 19:57:07,151 INFO L131 PetriNetUnfolder]: For 90757/90811 co-relation queries the response was YES. [2023-08-31 19:57:07,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32560 conditions, 4526 events. 2069/4526 cut-off events. For 90757/90811 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 33234 event pairs, 437 based on Foata normal form. 23/4483 useless extension candidates. Maximal degree in co-relation 32465. Up to 1759 conditions per place. [2023-08-31 19:57:07,195 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 744 selfloop transitions, 211 changer transitions 0/968 dead transitions. [2023-08-31 19:57:07,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 968 transitions, 19951 flow [2023-08-31 19:57:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 837 transitions. [2023-08-31 19:57:07,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561744966442953 [2023-08-31 19:57:07,197 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 837 transitions. [2023-08-31 19:57:07,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 837 transitions. [2023-08-31 19:57:07,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:07,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 837 transitions. [2023-08-31 19:57:07,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.7) internal successors, (837), 10 states have internal predecessors, (837), 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) [2023-08-31 19:57:07,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:07,200 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:07,200 INFO L175 Difference]: Start difference. First operand has 222 places, 719 transitions, 15283 flow. Second operand 10 states and 837 transitions. [2023-08-31 19:57:07,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 968 transitions, 19951 flow [2023-08-31 19:57:07,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 968 transitions, 19754 flow, removed 98 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:07,560 INFO L231 Difference]: Finished difference. Result has 236 places, 794 transitions, 16822 flow [2023-08-31 19:57:07,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=15148, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16822, PETRI_PLACES=236, PETRI_TRANSITIONS=794} [2023-08-31 19:57:07,560 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 191 predicate places. [2023-08-31 19:57:07,561 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 794 transitions, 16822 flow [2023-08-31 19:57:07,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:07,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:07,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:07,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 19:57:07,561 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:07,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:07,562 INFO L85 PathProgramCache]: Analyzing trace with hash -285610316, now seen corresponding path program 2 times [2023-08-31 19:57:07,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:07,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021907432] [2023-08-31 19:57:07,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:07,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:07,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:07,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021907432] [2023-08-31 19:57:07,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021907432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:07,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:07,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851868234] [2023-08-31 19:57:07,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:07,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:07,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:07,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:07,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 794 transitions, 16822 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:07,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:07,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:07,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:09,244 INFO L130 PetriNetUnfolder]: 2006/4392 cut-off events. [2023-08-31 19:57:09,244 INFO L131 PetriNetUnfolder]: For 96536/96572 co-relation queries the response was YES. [2023-08-31 19:57:09,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32930 conditions, 4392 events. 2006/4392 cut-off events. For 96536/96572 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 32132 event pairs, 362 based on Foata normal form. 50/4377 useless extension candidates. Maximal degree in co-relation 32828. Up to 1744 conditions per place. [2023-08-31 19:57:09,281 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 843 selfloop transitions, 160 changer transitions 0/1019 dead transitions. [2023-08-31 19:57:09,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 1019 transitions, 22081 flow [2023-08-31 19:57:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:57:09,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:57:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 873 transitions. [2023-08-31 19:57:09,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5326418547895058 [2023-08-31 19:57:09,283 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 873 transitions. [2023-08-31 19:57:09,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 873 transitions. [2023-08-31 19:57:09,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:09,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 873 transitions. [2023-08-31 19:57:09,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.36363636363636) internal successors, (873), 11 states have internal predecessors, (873), 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) [2023-08-31 19:57:09,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:57:09,286 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:57:09,286 INFO L175 Difference]: Start difference. First operand has 236 places, 794 transitions, 16822 flow. Second operand 11 states and 873 transitions. [2023-08-31 19:57:09,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 1019 transitions, 22081 flow [2023-08-31 19:57:09,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1019 transitions, 21942 flow, removed 65 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:09,626 INFO L231 Difference]: Finished difference. Result has 250 places, 833 transitions, 17927 flow [2023-08-31 19:57:09,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=16729, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=794, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17927, PETRI_PLACES=250, PETRI_TRANSITIONS=833} [2023-08-31 19:57:09,627 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 205 predicate places. [2023-08-31 19:57:09,627 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 833 transitions, 17927 flow [2023-08-31 19:57:09,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:09,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:09,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:09,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 19:57:09,627 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:09,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1199982051, now seen corresponding path program 5 times [2023-08-31 19:57:09,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:09,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656212431] [2023-08-31 19:57:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:09,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:09,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656212431] [2023-08-31 19:57:09,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656212431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:09,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:09,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:09,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173975505] [2023-08-31 19:57:09,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:09,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:09,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:09,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:10,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:57:10,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 833 transitions, 17927 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:10,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:10,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:57:10,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:11,181 INFO L130 PetriNetUnfolder]: 1760/4023 cut-off events. [2023-08-31 19:57:11,181 INFO L131 PetriNetUnfolder]: For 103801/103945 co-relation queries the response was YES. [2023-08-31 19:57:11,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31910 conditions, 4023 events. 1760/4023 cut-off events. For 103801/103945 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 30665 event pairs, 188 based on Foata normal form. 48/3993 useless extension candidates. Maximal degree in co-relation 31802. Up to 2485 conditions per place. [2023-08-31 19:57:11,220 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 540 selfloop transitions, 233 changer transitions 0/962 dead transitions. [2023-08-31 19:57:11,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 962 transitions, 21488 flow [2023-08-31 19:57:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2023-08-31 19:57:11,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778523489932886 [2023-08-31 19:57:11,221 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 861 transitions. [2023-08-31 19:57:11,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 861 transitions. [2023-08-31 19:57:11,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:11,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 861 transitions. [2023-08-31 19:57:11,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2023-08-31 19:57:11,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:11,224 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:11,224 INFO L175 Difference]: Start difference. First operand has 250 places, 833 transitions, 17927 flow. Second operand 10 states and 861 transitions. [2023-08-31 19:57:11,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 962 transitions, 21488 flow [2023-08-31 19:57:11,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 962 transitions, 21282 flow, removed 53 selfloop flow, removed 3 redundant places. [2023-08-31 19:57:11,594 INFO L231 Difference]: Finished difference. Result has 262 places, 878 transitions, 19854 flow [2023-08-31 19:57:11,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=17743, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19854, PETRI_PLACES=262, PETRI_TRANSITIONS=878} [2023-08-31 19:57:11,595 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 217 predicate places. [2023-08-31 19:57:11,595 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 878 transitions, 19854 flow [2023-08-31 19:57:11,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:11,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:11,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:11,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 19:57:11,596 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:11,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:11,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1194263780, now seen corresponding path program 3 times [2023-08-31 19:57:11,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:11,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030093449] [2023-08-31 19:57:11,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:11,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:11,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:11,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030093449] [2023-08-31 19:57:11,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030093449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:11,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:11,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:11,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428191010] [2023-08-31 19:57:11,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:11,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:11,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:11,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:11,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:11,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:11,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 878 transitions, 19854 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:11,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:11,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:11,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:13,351 INFO L130 PetriNetUnfolder]: 2083/4547 cut-off events. [2023-08-31 19:57:13,351 INFO L131 PetriNetUnfolder]: For 118130/118176 co-relation queries the response was YES. [2023-08-31 19:57:13,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36418 conditions, 4547 events. 2083/4547 cut-off events. For 118130/118176 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33518 event pairs, 447 based on Foata normal form. 28/4512 useless extension candidates. Maximal degree in co-relation 36304. Up to 2142 conditions per place. [2023-08-31 19:57:13,405 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 842 selfloop transitions, 174 changer transitions 0/1032 dead transitions. [2023-08-31 19:57:13,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1032 transitions, 23870 flow [2023-08-31 19:57:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:13,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2023-08-31 19:57:13,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-31 19:57:13,411 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2023-08-31 19:57:13,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2023-08-31 19:57:13,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:13,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2023-08-31 19:57:13,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 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) [2023-08-31 19:57:13,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:13,414 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:13,414 INFO L175 Difference]: Start difference. First operand has 262 places, 878 transitions, 19854 flow. Second operand 10 states and 805 transitions. [2023-08-31 19:57:13,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1032 transitions, 23870 flow [2023-08-31 19:57:13,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1032 transitions, 23672 flow, removed 70 selfloop flow, removed 3 redundant places. [2023-08-31 19:57:13,972 INFO L231 Difference]: Finished difference. Result has 272 places, 903 transitions, 20663 flow [2023-08-31 19:57:13,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=19668, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20663, PETRI_PLACES=272, PETRI_TRANSITIONS=903} [2023-08-31 19:57:13,974 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 227 predicate places. [2023-08-31 19:57:13,974 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 903 transitions, 20663 flow [2023-08-31 19:57:13,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:13,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:13,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:13,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 19:57:13,975 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:13,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash 364009928, now seen corresponding path program 3 times [2023-08-31 19:57:13,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:13,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632622156] [2023-08-31 19:57:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:13,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:14,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:14,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632622156] [2023-08-31 19:57:14,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632622156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:14,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:14,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:14,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645284018] [2023-08-31 19:57:14,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:14,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:14,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:14,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:14,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:14,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:14,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 903 transitions, 20663 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:14,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:14,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:14,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:16,120 INFO L130 PetriNetUnfolder]: 2198/4759 cut-off events. [2023-08-31 19:57:16,120 INFO L131 PetriNetUnfolder]: For 127982/128015 co-relation queries the response was YES. [2023-08-31 19:57:16,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38781 conditions, 4759 events. 2198/4759 cut-off events. For 127982/128015 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 34966 event pairs, 482 based on Foata normal form. 14/4699 useless extension candidates. Maximal degree in co-relation 38664. Up to 3606 conditions per place. [2023-08-31 19:57:16,182 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 565 selfloop transitions, 417 changer transitions 0/998 dead transitions. [2023-08-31 19:57:16,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 998 transitions, 23786 flow [2023-08-31 19:57:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:57:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:57:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2023-08-31 19:57:16,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5525727069351231 [2023-08-31 19:57:16,184 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2023-08-31 19:57:16,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2023-08-31 19:57:16,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:16,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2023-08-31 19:57:16,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 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) [2023-08-31 19:57:16,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:16,186 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:16,186 INFO L175 Difference]: Start difference. First operand has 272 places, 903 transitions, 20663 flow. Second operand 9 states and 741 transitions. [2023-08-31 19:57:16,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 998 transitions, 23786 flow [2023-08-31 19:57:16,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 998 transitions, 23539 flow, removed 78 selfloop flow, removed 3 redundant places. [2023-08-31 19:57:16,782 INFO L231 Difference]: Finished difference. Result has 280 places, 918 transitions, 22108 flow [2023-08-31 19:57:16,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=20459, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22108, PETRI_PLACES=280, PETRI_TRANSITIONS=918} [2023-08-31 19:57:16,784 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 235 predicate places. [2023-08-31 19:57:16,784 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 918 transitions, 22108 flow [2023-08-31 19:57:16,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:16,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:16,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:16,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 19:57:16,784 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:16,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2022772808, now seen corresponding path program 4 times [2023-08-31 19:57:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:16,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843371470] [2023-08-31 19:57:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:16,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:16,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:16,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843371470] [2023-08-31 19:57:16,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843371470] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:16,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:16,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:16,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194838561] [2023-08-31 19:57:16,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:16,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:16,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:16,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:16,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:17,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:17,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 918 transitions, 22108 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:17,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:17,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:17,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:19,135 INFO L130 PetriNetUnfolder]: 2280/4924 cut-off events. [2023-08-31 19:57:19,136 INFO L131 PetriNetUnfolder]: For 138997/139030 co-relation queries the response was YES. [2023-08-31 19:57:19,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41579 conditions, 4924 events. 2280/4924 cut-off events. For 138997/139030 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 36425 event pairs, 469 based on Foata normal form. 25/4882 useless extension candidates. Maximal degree in co-relation 41460. Up to 3516 conditions per place. [2023-08-31 19:57:19,193 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 648 selfloop transitions, 433 changer transitions 0/1097 dead transitions. [2023-08-31 19:57:19,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 1097 transitions, 26717 flow [2023-08-31 19:57:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:19,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 822 transitions. [2023-08-31 19:57:19,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516778523489932 [2023-08-31 19:57:19,195 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 822 transitions. [2023-08-31 19:57:19,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 822 transitions. [2023-08-31 19:57:19,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:19,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 822 transitions. [2023-08-31 19:57:19,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.2) internal successors, (822), 10 states have internal predecessors, (822), 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) [2023-08-31 19:57:19,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:19,197 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:19,197 INFO L175 Difference]: Start difference. First operand has 280 places, 918 transitions, 22108 flow. Second operand 10 states and 822 transitions. [2023-08-31 19:57:19,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 1097 transitions, 26717 flow [2023-08-31 19:57:19,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 1097 transitions, 26454 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:19,821 INFO L231 Difference]: Finished difference. Result has 290 places, 968 transitions, 24025 flow [2023-08-31 19:57:19,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=21849, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24025, PETRI_PLACES=290, PETRI_TRANSITIONS=968} [2023-08-31 19:57:19,822 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 245 predicate places. [2023-08-31 19:57:19,822 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 968 transitions, 24025 flow [2023-08-31 19:57:19,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:19,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:19,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:19,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 19:57:19,823 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:19,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash 414952538, now seen corresponding path program 5 times [2023-08-31 19:57:19,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:19,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854312243] [2023-08-31 19:57:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:19,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:19,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:19,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854312243] [2023-08-31 19:57:19,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854312243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:19,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:19,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:19,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703902375] [2023-08-31 19:57:19,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:19,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:19,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:19,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:19,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:20,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:20,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 968 transitions, 24025 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:20,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:20,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:20,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:22,031 INFO L130 PetriNetUnfolder]: 2300/4964 cut-off events. [2023-08-31 19:57:22,031 INFO L131 PetriNetUnfolder]: For 150165/150198 co-relation queries the response was YES. [2023-08-31 19:57:22,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43719 conditions, 4964 events. 2300/4964 cut-off events. For 150165/150198 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 36762 event pairs, 473 based on Foata normal form. 25/4917 useless extension candidates. Maximal degree in co-relation 43595. Up to 3684 conditions per place. [2023-08-31 19:57:22,089 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 625 selfloop transitions, 458 changer transitions 0/1099 dead transitions. [2023-08-31 19:57:22,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1099 transitions, 27936 flow [2023-08-31 19:57:22,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:22,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:22,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 822 transitions. [2023-08-31 19:57:22,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516778523489932 [2023-08-31 19:57:22,091 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 822 transitions. [2023-08-31 19:57:22,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 822 transitions. [2023-08-31 19:57:22,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:22,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 822 transitions. [2023-08-31 19:57:22,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.2) internal successors, (822), 10 states have internal predecessors, (822), 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) [2023-08-31 19:57:22,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:22,093 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:22,093 INFO L175 Difference]: Start difference. First operand has 290 places, 968 transitions, 24025 flow. Second operand 10 states and 822 transitions. [2023-08-31 19:57:22,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1099 transitions, 27936 flow [2023-08-31 19:57:22,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 1099 transitions, 27653 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-08-31 19:57:22,722 INFO L231 Difference]: Finished difference. Result has 300 places, 1001 transitions, 25683 flow [2023-08-31 19:57:22,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=23742, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=426, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25683, PETRI_PLACES=300, PETRI_TRANSITIONS=1001} [2023-08-31 19:57:22,723 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 255 predicate places. [2023-08-31 19:57:22,723 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 1001 transitions, 25683 flow [2023-08-31 19:57:22,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:22,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:22,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:22,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 19:57:22,723 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:22,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1573861707, now seen corresponding path program 6 times [2023-08-31 19:57:22,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:22,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421715303] [2023-08-31 19:57:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:22,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:22,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:22,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421715303] [2023-08-31 19:57:22,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421715303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:22,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:22,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894553572] [2023-08-31 19:57:22,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:22,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:22,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:22,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:22,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:23,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-31 19:57:23,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 1001 transitions, 25683 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:23,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:23,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-31 19:57:23,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:24,575 INFO L130 PetriNetUnfolder]: 1966/4400 cut-off events. [2023-08-31 19:57:24,575 INFO L131 PetriNetUnfolder]: For 159361/159503 co-relation queries the response was YES. [2023-08-31 19:57:24,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41274 conditions, 4400 events. 1966/4400 cut-off events. For 159361/159503 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 33651 event pairs, 208 based on Foata normal form. 47/4365 useless extension candidates. Maximal degree in co-relation 41146. Up to 2660 conditions per place. [2023-08-31 19:57:24,628 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 652 selfloop transitions, 278 changer transitions 0/1131 dead transitions. [2023-08-31 19:57:24,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 1131 transitions, 30332 flow [2023-08-31 19:57:24,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2023-08-31 19:57:24,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778523489932886 [2023-08-31 19:57:24,630 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 861 transitions. [2023-08-31 19:57:24,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 861 transitions. [2023-08-31 19:57:24,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:24,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 861 transitions. [2023-08-31 19:57:24,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 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) [2023-08-31 19:57:24,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:24,632 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:24,632 INFO L175 Difference]: Start difference. First operand has 300 places, 1001 transitions, 25683 flow. Second operand 10 states and 861 transitions. [2023-08-31 19:57:24,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 1131 transitions, 30332 flow [2023-08-31 19:57:25,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1131 transitions, 29851 flow, removed 67 selfloop flow, removed 5 redundant places. [2023-08-31 19:57:25,316 INFO L231 Difference]: Finished difference. Result has 309 places, 1032 transitions, 27380 flow [2023-08-31 19:57:25,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=25221, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27380, PETRI_PLACES=309, PETRI_TRANSITIONS=1032} [2023-08-31 19:57:25,317 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 264 predicate places. [2023-08-31 19:57:25,317 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 1032 transitions, 27380 flow [2023-08-31 19:57:25,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2023-08-31 19:57:25,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:25,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:25,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 19:57:25,317 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:25,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1806564088, now seen corresponding path program 6 times [2023-08-31 19:57:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:25,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107625189] [2023-08-31 19:57:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:25,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107625189] [2023-08-31 19:57:25,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107625189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:25,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:25,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64511126] [2023-08-31 19:57:25,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:25,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:25,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:25,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:25,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 1032 transitions, 27380 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:25,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:25,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:25,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:27,533 INFO L130 PetriNetUnfolder]: 2305/4971 cut-off events. [2023-08-31 19:57:27,534 INFO L131 PetriNetUnfolder]: For 173202/173233 co-relation queries the response was YES. [2023-08-31 19:57:27,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46066 conditions, 4971 events. 2305/4971 cut-off events. For 173202/173233 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 36710 event pairs, 449 based on Foata normal form. 51/4951 useless extension candidates. Maximal degree in co-relation 45934. Up to 2515 conditions per place. [2023-08-31 19:57:27,603 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 957 selfloop transitions, 243 changer transitions 0/1215 dead transitions. [2023-08-31 19:57:27,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 1215 transitions, 32601 flow [2023-08-31 19:57:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:57:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:57:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 899 transitions. [2023-08-31 19:57:27,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485051860890787 [2023-08-31 19:57:27,605 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 899 transitions. [2023-08-31 19:57:27,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 899 transitions. [2023-08-31 19:57:27,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:27,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 899 transitions. [2023-08-31 19:57:27,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.72727272727273) internal successors, (899), 11 states have internal predecessors, (899), 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) [2023-08-31 19:57:27,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:57:27,609 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 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) [2023-08-31 19:57:27,609 INFO L175 Difference]: Start difference. First operand has 309 places, 1032 transitions, 27380 flow. Second operand 11 states and 899 transitions. [2023-08-31 19:57:27,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 1215 transitions, 32601 flow [2023-08-31 19:57:28,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 1215 transitions, 32292 flow, removed 88 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:28,455 INFO L231 Difference]: Finished difference. Result has 322 places, 1049 transitions, 28339 flow [2023-08-31 19:57:28,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=27155, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28339, PETRI_PLACES=322, PETRI_TRANSITIONS=1049} [2023-08-31 19:57:28,456 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 277 predicate places. [2023-08-31 19:57:28,456 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 1049 transitions, 28339 flow [2023-08-31 19:57:28,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:28,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:28,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:28,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 19:57:28,457 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:28,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:28,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1210359308, now seen corresponding path program 4 times [2023-08-31 19:57:28,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:28,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42402134] [2023-08-31 19:57:28,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:28,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:28,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:28,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:28,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42402134] [2023-08-31 19:57:28,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42402134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:28,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:28,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:28,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881419225] [2023-08-31 19:57:28,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:28,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:28,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:28,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:28,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:28,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 1049 transitions, 28339 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:28,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:28,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:28,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:30,740 INFO L130 PetriNetUnfolder]: 2330/5013 cut-off events. [2023-08-31 19:57:30,741 INFO L131 PetriNetUnfolder]: For 184779/184791 co-relation queries the response was YES. [2023-08-31 19:57:30,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48019 conditions, 5013 events. 2330/5013 cut-off events. For 184779/184791 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 37168 event pairs, 513 based on Foata normal form. 17/4954 useless extension candidates. Maximal degree in co-relation 47881. Up to 3882 conditions per place. [2023-08-31 19:57:30,811 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 727 selfloop transitions, 418 changer transitions 0/1160 dead transitions. [2023-08-31 19:57:30,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1160 transitions, 32839 flow [2023-08-31 19:57:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:57:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:57:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 714 transitions. [2023-08-31 19:57:30,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5324384787472036 [2023-08-31 19:57:30,813 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 714 transitions. [2023-08-31 19:57:30,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 714 transitions. [2023-08-31 19:57:30,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:30,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 714 transitions. [2023-08-31 19:57:30,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2023-08-31 19:57:30,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:30,815 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:30,815 INFO L175 Difference]: Start difference. First operand has 322 places, 1049 transitions, 28339 flow. Second operand 9 states and 714 transitions. [2023-08-31 19:57:30,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1160 transitions, 32839 flow [2023-08-31 19:57:31,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1160 transitions, 32491 flow, removed 135 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:31,674 INFO L231 Difference]: Finished difference. Result has 331 places, 1062 transitions, 29725 flow [2023-08-31 19:57:31,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=28039, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=29725, PETRI_PLACES=331, PETRI_TRANSITIONS=1062} [2023-08-31 19:57:31,675 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 286 predicate places. [2023-08-31 19:57:31,675 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 1062 transitions, 29725 flow [2023-08-31 19:57:31,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:31,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:31,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:31,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-31 19:57:31,676 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:31,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:31,676 INFO L85 PathProgramCache]: Analyzing trace with hash -743994444, now seen corresponding path program 5 times [2023-08-31 19:57:31,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:31,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259502332] [2023-08-31 19:57:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:31,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:31,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:31,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259502332] [2023-08-31 19:57:31,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259502332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:31,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:31,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:31,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403822408] [2023-08-31 19:57:31,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:31,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:31,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:31,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:31,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:32,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:32,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 1062 transitions, 29725 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:32,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:32,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:32,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:33,994 INFO L130 PetriNetUnfolder]: 2404/5172 cut-off events. [2023-08-31 19:57:33,995 INFO L131 PetriNetUnfolder]: For 195109/195121 co-relation queries the response was YES. [2023-08-31 19:57:34,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50233 conditions, 5172 events. 2404/5172 cut-off events. For 195109/195121 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 38573 event pairs, 498 based on Foata normal form. 28/5130 useless extension candidates. Maximal degree in co-relation 50092. Up to 3793 conditions per place. [2023-08-31 19:57:34,068 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 791 selfloop transitions, 419 changer transitions 0/1225 dead transitions. [2023-08-31 19:57:34,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1225 transitions, 35213 flow [2023-08-31 19:57:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 795 transitions. [2023-08-31 19:57:34,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5335570469798657 [2023-08-31 19:57:34,070 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 795 transitions. [2023-08-31 19:57:34,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 795 transitions. [2023-08-31 19:57:34,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:34,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 795 transitions. [2023-08-31 19:57:34,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.5) internal successors, (795), 10 states have internal predecessors, (795), 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) [2023-08-31 19:57:34,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:34,072 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:34,072 INFO L175 Difference]: Start difference. First operand has 331 places, 1062 transitions, 29725 flow. Second operand 10 states and 795 transitions. [2023-08-31 19:57:34,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1225 transitions, 35213 flow [2023-08-31 19:57:34,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 1225 transitions, 34931 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:34,955 INFO L231 Difference]: Finished difference. Result has 341 places, 1098 transitions, 31523 flow [2023-08-31 19:57:34,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=29445, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31523, PETRI_PLACES=341, PETRI_TRANSITIONS=1098} [2023-08-31 19:57:34,956 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 296 predicate places. [2023-08-31 19:57:34,956 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 1098 transitions, 31523 flow [2023-08-31 19:57:34,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:34,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:34,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:34,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-31 19:57:34,957 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:34,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1113404018, now seen corresponding path program 6 times [2023-08-31 19:57:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992614491] [2023-08-31 19:57:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:35,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:35,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:35,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992614491] [2023-08-31 19:57:35,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992614491] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:35,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:35,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:57:35,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132096780] [2023-08-31 19:57:35,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:35,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:57:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:35,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:57:35,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:57:35,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-31 19:57:35,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 1098 transitions, 31523 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:35,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:35,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-31 19:57:35,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:37,378 INFO L130 PetriNetUnfolder]: 2422/5213 cut-off events. [2023-08-31 19:57:37,379 INFO L131 PetriNetUnfolder]: For 204888/204898 co-relation queries the response was YES. [2023-08-31 19:57:37,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52122 conditions, 5213 events. 2422/5213 cut-off events. For 204888/204898 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 38970 event pairs, 492 based on Foata normal form. 28/5166 useless extension candidates. Maximal degree in co-relation 51976. Up to 3959 conditions per place. [2023-08-31 19:57:37,448 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 764 selfloop transitions, 454 changer transitions 0/1233 dead transitions. [2023-08-31 19:57:37,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1233 transitions, 36600 flow [2023-08-31 19:57:37,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:37,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:37,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 792 transitions. [2023-08-31 19:57:37,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315436241610738 [2023-08-31 19:57:37,450 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 792 transitions. [2023-08-31 19:57:37,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 792 transitions. [2023-08-31 19:57:37,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:37,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 792 transitions. [2023-08-31 19:57:37,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.2) internal successors, (792), 10 states have internal predecessors, (792), 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) [2023-08-31 19:57:37,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:37,452 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:37,452 INFO L175 Difference]: Start difference. First operand has 341 places, 1098 transitions, 31523 flow. Second operand 10 states and 792 transitions. [2023-08-31 19:57:37,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1233 transitions, 36600 flow [2023-08-31 19:57:38,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 1233 transitions, 36382 flow, removed 71 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:38,307 INFO L231 Difference]: Finished difference. Result has 348 places, 1118 transitions, 33080 flow [2023-08-31 19:57:38,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=31293, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=33080, PETRI_PLACES=348, PETRI_TRANSITIONS=1118} [2023-08-31 19:57:38,308 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 303 predicate places. [2023-08-31 19:57:38,308 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 1118 transitions, 33080 flow [2023-08-31 19:57:38,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 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) [2023-08-31 19:57:38,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:38,309 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] [2023-08-31 19:57:38,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-31 19:57:38,309 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:38,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1675085254, now seen corresponding path program 1 times [2023-08-31 19:57:38,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:38,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466732312] [2023-08-31 19:57:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466732312] [2023-08-31 19:57:38,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466732312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:38,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:38,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:57:38,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115968537] [2023-08-31 19:57:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:38,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:57:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:57:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:57:38,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-31 19:57:38,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 1118 transitions, 33080 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2023-08-31 19:57:38,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:38,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-31 19:57:38,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:40,061 INFO L130 PetriNetUnfolder]: 2180/4768 cut-off events. [2023-08-31 19:57:40,062 INFO L131 PetriNetUnfolder]: For 214477/214594 co-relation queries the response was YES. [2023-08-31 19:57:40,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49874 conditions, 4768 events. 2180/4768 cut-off events. For 214477/214594 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 35977 event pairs, 274 based on Foata normal form. 46/4768 useless extension candidates. Maximal degree in co-relation 49727. Up to 3463 conditions per place. [2023-08-31 19:57:40,126 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 708 selfloop transitions, 93 changer transitions 168/1228 dead transitions. [2023-08-31 19:57:40,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 1228 transitions, 37913 flow [2023-08-31 19:57:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:57:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:57:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2023-08-31 19:57:40,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6129753914988815 [2023-08-31 19:57:40,127 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2023-08-31 19:57:40,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2023-08-31 19:57:40,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:40,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2023-08-31 19:57:40,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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) [2023-08-31 19:57:40,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:57:40,129 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 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) [2023-08-31 19:57:40,129 INFO L175 Difference]: Start difference. First operand has 348 places, 1118 transitions, 33080 flow. Second operand 6 states and 548 transitions. [2023-08-31 19:57:40,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 1228 transitions, 37913 flow [2023-08-31 19:57:40,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1228 transitions, 37285 flow, removed 70 selfloop flow, removed 6 redundant places. [2023-08-31 19:57:40,935 INFO L231 Difference]: Finished difference. Result has 352 places, 1048 transitions, 31050 flow [2023-08-31 19:57:40,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=32452, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=31050, PETRI_PLACES=352, PETRI_TRANSITIONS=1048} [2023-08-31 19:57:40,936 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 307 predicate places. [2023-08-31 19:57:40,936 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 1048 transitions, 31050 flow [2023-08-31 19:57:40,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2023-08-31 19:57:40,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:40,937 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] [2023-08-31 19:57:40,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-31 19:57:40,937 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:40,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2022430577, now seen corresponding path program 1 times [2023-08-31 19:57:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:40,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828611192] [2023-08-31 19:57:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:41,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828611192] [2023-08-31 19:57:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828611192] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:57:41,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423700604] [2023-08-31 19:57:41,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:41,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:57:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:41,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:57:41,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:57:41,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 149 [2023-08-31 19:57:41,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1048 transitions, 31050 flow. Second operand has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 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) [2023-08-31 19:57:41,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:41,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 149 [2023-08-31 19:57:41,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:43,323 INFO L130 PetriNetUnfolder]: 2302/5081 cut-off events. [2023-08-31 19:57:43,324 INFO L131 PetriNetUnfolder]: For 211237/211249 co-relation queries the response was YES. [2023-08-31 19:57:43,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51682 conditions, 5081 events. 2302/5081 cut-off events. For 211237/211249 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 38042 event pairs, 499 based on Foata normal form. 24/5089 useless extension candidates. Maximal degree in co-relation 51532. Up to 3653 conditions per place. [2023-08-31 19:57:43,411 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 712 selfloop transitions, 420 changer transitions 32/1179 dead transitions. [2023-08-31 19:57:43,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1179 transitions, 35365 flow [2023-08-31 19:57:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 19:57:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 19:57:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 666 transitions. [2023-08-31 19:57:43,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587248322147651 [2023-08-31 19:57:43,413 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 666 transitions. [2023-08-31 19:57:43,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 666 transitions. [2023-08-31 19:57:43,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:43,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 666 transitions. [2023-08-31 19:57:43,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 83.25) internal successors, (666), 8 states have internal predecessors, (666), 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) [2023-08-31 19:57:43,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 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) [2023-08-31 19:57:43,421 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 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) [2023-08-31 19:57:43,421 INFO L175 Difference]: Start difference. First operand has 352 places, 1048 transitions, 31050 flow. Second operand 8 states and 666 transitions. [2023-08-31 19:57:43,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1179 transitions, 35365 flow [2023-08-31 19:57:44,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1179 transitions, 34249 flow, removed 152 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:44,311 INFO L231 Difference]: Finished difference. Result has 359 places, 1056 transitions, 31713 flow [2023-08-31 19:57:44,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=30066, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=31713, PETRI_PLACES=359, PETRI_TRANSITIONS=1056} [2023-08-31 19:57:44,312 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 314 predicate places. [2023-08-31 19:57:44,312 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 1056 transitions, 31713 flow [2023-08-31 19:57:44,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 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) [2023-08-31 19:57:44,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:44,313 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] [2023-08-31 19:57:44,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-31 19:57:44,313 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:44,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:44,313 INFO L85 PathProgramCache]: Analyzing trace with hash 906309544, now seen corresponding path program 1 times [2023-08-31 19:57:44,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:44,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456659359] [2023-08-31 19:57:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:44,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:44,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:44,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456659359] [2023-08-31 19:57:44,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456659359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:44,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:44,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:57:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416729098] [2023-08-31 19:57:44,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:44,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:57:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:44,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:57:44,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:57:44,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-31 19:57:44,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 1056 transitions, 31713 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 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) [2023-08-31 19:57:44,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:44,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-31 19:57:44,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:46,342 INFO L130 PetriNetUnfolder]: 1971/4534 cut-off events. [2023-08-31 19:57:46,343 INFO L131 PetriNetUnfolder]: For 224971/225116 co-relation queries the response was YES. [2023-08-31 19:57:46,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48138 conditions, 4534 events. 1971/4534 cut-off events. For 224971/225116 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 35174 event pairs, 239 based on Foata normal form. 88/4600 useless extension candidates. Maximal degree in co-relation 47984. Up to 2951 conditions per place. [2023-08-31 19:57:46,402 INFO L137 encePairwiseOnDemand]: 141/149 looper letters, 608 selfloop transitions, 35 changer transitions 336/1172 dead transitions. [2023-08-31 19:57:46,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1172 transitions, 35818 flow [2023-08-31 19:57:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:57:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:57:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 782 transitions. [2023-08-31 19:57:46,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5831469052945563 [2023-08-31 19:57:46,403 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 782 transitions. [2023-08-31 19:57:46,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 782 transitions. [2023-08-31 19:57:46,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:46,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 782 transitions. [2023-08-31 19:57:46,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.88888888888889) internal successors, (782), 9 states have internal predecessors, (782), 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) [2023-08-31 19:57:46,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:46,405 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:46,405 INFO L175 Difference]: Start difference. First operand has 359 places, 1056 transitions, 31713 flow. Second operand 9 states and 782 transitions. [2023-08-31 19:57:46,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1172 transitions, 35818 flow [2023-08-31 19:57:47,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 1172 transitions, 35702 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 19:57:47,218 INFO L231 Difference]: Finished difference. Result has 370 places, 824 transitions, 24288 flow [2023-08-31 19:57:47,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=31627, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1021, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=24288, PETRI_PLACES=370, PETRI_TRANSITIONS=824} [2023-08-31 19:57:47,219 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 325 predicate places. [2023-08-31 19:57:47,219 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 824 transitions, 24288 flow [2023-08-31 19:57:47,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 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) [2023-08-31 19:57:47,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:47,220 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] [2023-08-31 19:57:47,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-31 19:57:47,220 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:47,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:47,220 INFO L85 PathProgramCache]: Analyzing trace with hash -194410995, now seen corresponding path program 2 times [2023-08-31 19:57:47,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:47,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136911511] [2023-08-31 19:57:47,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:47,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:47,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:47,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136911511] [2023-08-31 19:57:47,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136911511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:47,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:47,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:57:47,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209396604] [2023-08-31 19:57:47,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:47,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:57:47,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:47,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:57:47,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:57:47,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-31 19:57:47,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 824 transitions, 24288 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:47,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:47,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-31 19:57:47,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:49,356 INFO L130 PetriNetUnfolder]: 1674/3914 cut-off events. [2023-08-31 19:57:49,356 INFO L131 PetriNetUnfolder]: For 181354/181366 co-relation queries the response was YES. [2023-08-31 19:57:49,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41281 conditions, 3914 events. 1674/3914 cut-off events. For 181354/181366 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 29318 event pairs, 402 based on Foata normal form. 15/3919 useless extension candidates. Maximal degree in co-relation 41121. Up to 1691 conditions per place. [2023-08-31 19:57:49,406 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 563 selfloop transitions, 26 changer transitions 385/989 dead transitions. [2023-08-31 19:57:49,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 989 transitions, 28349 flow [2023-08-31 19:57:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2023-08-31 19:57:49,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-31 19:57:49,408 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2023-08-31 19:57:49,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2023-08-31 19:57:49,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:49,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2023-08-31 19:57:49,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 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) [2023-08-31 19:57:49,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:49,410 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:49,410 INFO L175 Difference]: Start difference. First operand has 370 places, 824 transitions, 24288 flow. Second operand 10 states and 805 transitions. [2023-08-31 19:57:49,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 989 transitions, 28349 flow [2023-08-31 19:57:50,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 989 transitions, 27045 flow, removed 159 selfloop flow, removed 12 redundant places. [2023-08-31 19:57:50,055 INFO L231 Difference]: Finished difference. Result has 369 places, 572 transitions, 15165 flow [2023-08-31 19:57:50,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=23244, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15165, PETRI_PLACES=369, PETRI_TRANSITIONS=572} [2023-08-31 19:57:50,056 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 324 predicate places. [2023-08-31 19:57:50,056 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 572 transitions, 15165 flow [2023-08-31 19:57:50,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:50,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:50,057 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] [2023-08-31 19:57:50,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-31 19:57:50,057 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:50,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1815637884, now seen corresponding path program 2 times [2023-08-31 19:57:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:50,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505926953] [2023-08-31 19:57:50,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:50,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:50,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505926953] [2023-08-31 19:57:50,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505926953] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:50,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:50,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:57:50,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135592444] [2023-08-31 19:57:50,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:50,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:57:50,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:50,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:57:50,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:57:50,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-31 19:57:50,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 572 transitions, 15165 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 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) [2023-08-31 19:57:50,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:50,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-31 19:57:50,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:51,347 INFO L130 PetriNetUnfolder]: 914/2269 cut-off events. [2023-08-31 19:57:51,347 INFO L131 PetriNetUnfolder]: For 105787/105851 co-relation queries the response was YES. [2023-08-31 19:57:51,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24313 conditions, 2269 events. 914/2269 cut-off events. For 105787/105851 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 15829 event pairs, 156 based on Foata normal form. 36/2292 useless extension candidates. Maximal degree in co-relation 24166. Up to 1784 conditions per place. [2023-08-31 19:57:51,375 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 423 selfloop transitions, 39 changer transitions 9/592 dead transitions. [2023-08-31 19:57:51,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 592 transitions, 16490 flow [2023-08-31 19:57:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 19:57:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 19:57:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 692 transitions. [2023-08-31 19:57:51,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5805369127516778 [2023-08-31 19:57:51,376 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 692 transitions. [2023-08-31 19:57:51,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 692 transitions. [2023-08-31 19:57:51,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:51,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 692 transitions. [2023-08-31 19:57:51,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 86.5) internal successors, (692), 8 states have internal predecessors, (692), 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) [2023-08-31 19:57:51,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 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) [2023-08-31 19:57:51,378 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 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) [2023-08-31 19:57:51,378 INFO L175 Difference]: Start difference. First operand has 369 places, 572 transitions, 15165 flow. Second operand 8 states and 692 transitions. [2023-08-31 19:57:51,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 592 transitions, 16490 flow [2023-08-31 19:57:51,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 592 transitions, 14815 flow, removed 66 selfloop flow, removed 46 redundant places. [2023-08-31 19:57:51,699 INFO L231 Difference]: Finished difference. Result has 311 places, 572 transitions, 13635 flow [2023-08-31 19:57:51,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13546, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13635, PETRI_PLACES=311, PETRI_TRANSITIONS=572} [2023-08-31 19:57:51,700 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 266 predicate places. [2023-08-31 19:57:51,700 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 572 transitions, 13635 flow [2023-08-31 19:57:51,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 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) [2023-08-31 19:57:51,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:51,700 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] [2023-08-31 19:57:51,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-31 19:57:51,701 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:51,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash 31039561, now seen corresponding path program 3 times [2023-08-31 19:57:51,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:51,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30261973] [2023-08-31 19:57:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:51,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:52,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:52,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30261973] [2023-08-31 19:57:52,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30261973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:52,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:52,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:57:52,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362438312] [2023-08-31 19:57:52,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:52,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:57:52,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:52,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:57:52,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:57:52,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-31 19:57:52,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 572 transitions, 13635 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:52,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:52,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-31 19:57:52,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:53,452 INFO L130 PetriNetUnfolder]: 1055/2503 cut-off events. [2023-08-31 19:57:53,452 INFO L131 PetriNetUnfolder]: For 79825/79837 co-relation queries the response was YES. [2023-08-31 19:57:53,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23828 conditions, 2503 events. 1055/2503 cut-off events. For 79825/79837 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 17042 event pairs, 187 based on Foata normal form. 15/2508 useless extension candidates. Maximal degree in co-relation 23705. Up to 845 conditions per place. [2023-08-31 19:57:53,481 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 198 selfloop transitions, 25 changer transitions 558/787 dead transitions. [2023-08-31 19:57:53,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 787 transitions, 18439 flow [2023-08-31 19:57:53,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 781 transitions. [2023-08-31 19:57:53,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241610738255034 [2023-08-31 19:57:53,483 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 781 transitions. [2023-08-31 19:57:53,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 781 transitions. [2023-08-31 19:57:53,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:53,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 781 transitions. [2023-08-31 19:57:53,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.1) internal successors, (781), 10 states have internal predecessors, (781), 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) [2023-08-31 19:57:53,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:53,485 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:53,485 INFO L175 Difference]: Start difference. First operand has 311 places, 572 transitions, 13635 flow. Second operand 10 states and 781 transitions. [2023-08-31 19:57:53,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 787 transitions, 18439 flow [2023-08-31 19:57:53,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 787 transitions, 18198 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-31 19:57:53,813 INFO L231 Difference]: Finished difference. Result has 315 places, 217 transitions, 4034 flow [2023-08-31 19:57:53,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13459, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4034, PETRI_PLACES=315, PETRI_TRANSITIONS=217} [2023-08-31 19:57:53,814 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 270 predicate places. [2023-08-31 19:57:53,814 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 217 transitions, 4034 flow [2023-08-31 19:57:53,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:53,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:53,814 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] [2023-08-31 19:57:53,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-31 19:57:53,814 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:53,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:53,815 INFO L85 PathProgramCache]: Analyzing trace with hash -833565660, now seen corresponding path program 3 times [2023-08-31 19:57:53,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:53,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422604637] [2023-08-31 19:57:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:54,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422604637] [2023-08-31 19:57:54,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422604637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:54,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:54,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:57:54,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671945019] [2023-08-31 19:57:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:54,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:57:54,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:57:54,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:57:54,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2023-08-31 19:57:54,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 217 transitions, 4034 flow. Second operand has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2023-08-31 19:57:54,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:54,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2023-08-31 19:57:54,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:54,608 INFO L130 PetriNetUnfolder]: 289/793 cut-off events. [2023-08-31 19:57:54,609 INFO L131 PetriNetUnfolder]: For 19303/19303 co-relation queries the response was YES. [2023-08-31 19:57:54,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7524 conditions, 793 events. 289/793 cut-off events. For 19303/19303 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4210 event pairs, 50 based on Foata normal form. 11/802 useless extension candidates. Maximal degree in co-relation 7399. Up to 589 conditions per place. [2023-08-31 19:57:54,617 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 157 selfloop transitions, 35 changer transitions 30/256 dead transitions. [2023-08-31 19:57:54,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 256 transitions, 5171 flow [2023-08-31 19:57:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:57:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:57:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 769 transitions. [2023-08-31 19:57:54,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734526472781506 [2023-08-31 19:57:54,619 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 769 transitions. [2023-08-31 19:57:54,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 769 transitions. [2023-08-31 19:57:54,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:54,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 769 transitions. [2023-08-31 19:57:54,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.44444444444444) internal successors, (769), 9 states have internal predecessors, (769), 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) [2023-08-31 19:57:54,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:54,621 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:54,621 INFO L175 Difference]: Start difference. First operand has 315 places, 217 transitions, 4034 flow. Second operand 9 states and 769 transitions. [2023-08-31 19:57:54,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 256 transitions, 5171 flow [2023-08-31 19:57:54,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 256 transitions, 3742 flow, removed 120 selfloop flow, removed 79 redundant places. [2023-08-31 19:57:54,681 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 2885 flow [2023-08-31 19:57:54,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2791, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2885, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2023-08-31 19:57:54,681 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2023-08-31 19:57:54,682 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 2885 flow [2023-08-31 19:57:54,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2023-08-31 19:57:54,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:54,682 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] [2023-08-31 19:57:54,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-31 19:57:54,682 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:54,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:54,682 INFO L85 PathProgramCache]: Analyzing trace with hash -170968354, now seen corresponding path program 4 times [2023-08-31 19:57:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725064082] [2023-08-31 19:57:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:54,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:54,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:54,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725064082] [2023-08-31 19:57:54,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725064082] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:54,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:54,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:57:54,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196005151] [2023-08-31 19:57:54,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:54,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:57:54,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:54,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:57:54,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:57:55,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-31 19:57:55,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 2885 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 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) [2023-08-31 19:57:55,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:55,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-31 19:57:55,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:55,451 INFO L130 PetriNetUnfolder]: 302/820 cut-off events. [2023-08-31 19:57:55,452 INFO L131 PetriNetUnfolder]: For 10729/10729 co-relation queries the response was YES. [2023-08-31 19:57:55,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 820 events. 302/820 cut-off events. For 10729/10729 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4354 event pairs, 54 based on Foata normal form. 11/825 useless extension candidates. Maximal degree in co-relation 6043. Up to 502 conditions per place. [2023-08-31 19:57:55,458 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 151 selfloop transitions, 30 changer transitions 64/279 dead transitions. [2023-08-31 19:57:55,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 279 transitions, 4225 flow [2023-08-31 19:57:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:57:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:57:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 778 transitions. [2023-08-31 19:57:55,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5801640566741237 [2023-08-31 19:57:55,459 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 778 transitions. [2023-08-31 19:57:55,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 778 transitions. [2023-08-31 19:57:55,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:55,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 778 transitions. [2023-08-31 19:57:55,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.44444444444444) internal successors, (778), 9 states have internal predecessors, (778), 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) [2023-08-31 19:57:55,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:55,461 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:55,461 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 2885 flow. Second operand 9 states and 778 transitions. [2023-08-31 19:57:55,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 279 transitions, 4225 flow [2023-08-31 19:57:55,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 279 transitions, 4034 flow, removed 30 selfloop flow, removed 10 redundant places. [2023-08-31 19:57:55,490 INFO L231 Difference]: Finished difference. Result has 218 places, 213 transitions, 2771 flow [2023-08-31 19:57:55,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2760, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2771, PETRI_PLACES=218, PETRI_TRANSITIONS=213} [2023-08-31 19:57:55,491 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2023-08-31 19:57:55,491 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 213 transitions, 2771 flow [2023-08-31 19:57:55,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 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) [2023-08-31 19:57:55,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:55,491 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] [2023-08-31 19:57:55,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-31 19:57:55,492 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:55,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:55,492 INFO L85 PathProgramCache]: Analyzing trace with hash -787920113, now seen corresponding path program 4 times [2023-08-31 19:57:55,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:55,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263722934] [2023-08-31 19:57:55,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:55,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:55,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263722934] [2023-08-31 19:57:55,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263722934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:55,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:55,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:57:55,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922853890] [2023-08-31 19:57:55,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:55,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:57:55,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:55,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:57:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:57:56,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-31 19:57:56,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 213 transitions, 2771 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:56,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:56,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-31 19:57:56,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:56,560 INFO L130 PetriNetUnfolder]: 291/798 cut-off events. [2023-08-31 19:57:56,561 INFO L131 PetriNetUnfolder]: For 10140/10140 co-relation queries the response was YES. [2023-08-31 19:57:56,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5965 conditions, 798 events. 291/798 cut-off events. For 10140/10140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4279 event pairs, 32 based on Foata normal form. 9/806 useless extension candidates. Maximal degree in co-relation 5877. Up to 356 conditions per place. [2023-08-31 19:57:56,566 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 202 selfloop transitions, 37 changer transitions 81/326 dead transitions. [2023-08-31 19:57:56,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 326 transitions, 4409 flow [2023-08-31 19:57:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 769 transitions. [2023-08-31 19:57:56,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5161073825503356 [2023-08-31 19:57:56,567 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 769 transitions. [2023-08-31 19:57:56,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 769 transitions. [2023-08-31 19:57:56,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:56,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 769 transitions. [2023-08-31 19:57:56,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.9) internal successors, (769), 10 states have internal predecessors, (769), 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) [2023-08-31 19:57:56,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:56,569 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:56,569 INFO L175 Difference]: Start difference. First operand has 218 places, 213 transitions, 2771 flow. Second operand 10 states and 769 transitions. [2023-08-31 19:57:56,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 326 transitions, 4409 flow [2023-08-31 19:57:56,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 326 transitions, 4146 flow, removed 26 selfloop flow, removed 12 redundant places. [2023-08-31 19:57:56,598 INFO L231 Difference]: Finished difference. Result has 215 places, 195 transitions, 2456 flow [2023-08-31 19:57:56,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2569, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2456, PETRI_PLACES=215, PETRI_TRANSITIONS=195} [2023-08-31 19:57:56,598 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 170 predicate places. [2023-08-31 19:57:56,598 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 195 transitions, 2456 flow [2023-08-31 19:57:56,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:56,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:56,599 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] [2023-08-31 19:57:56,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-31 19:57:56,599 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:56,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash 2129359247, now seen corresponding path program 5 times [2023-08-31 19:57:56,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93579978] [2023-08-31 19:57:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:56,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:56,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93579978] [2023-08-31 19:57:56,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93579978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:56,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:56,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:57:56,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379756808] [2023-08-31 19:57:56,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:56,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:57:56,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:57:56,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:57:57,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-31 19:57:57,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 195 transitions, 2456 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:57,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:57,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-31 19:57:57,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:57,496 INFO L130 PetriNetUnfolder]: 239/693 cut-off events. [2023-08-31 19:57:57,496 INFO L131 PetriNetUnfolder]: For 8478/8478 co-relation queries the response was YES. [2023-08-31 19:57:57,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5159 conditions, 693 events. 239/693 cut-off events. For 8478/8478 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3636 event pairs, 39 based on Foata normal form. 4/697 useless extension candidates. Maximal degree in co-relation 5073. Up to 476 conditions per place. [2023-08-31 19:57:57,500 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 149 selfloop transitions, 31 changer transitions 42/228 dead transitions. [2023-08-31 19:57:57,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 228 transitions, 3131 flow [2023-08-31 19:57:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:57:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:57:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 672 transitions. [2023-08-31 19:57:57,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011185682326622 [2023-08-31 19:57:57,501 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 672 transitions. [2023-08-31 19:57:57,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 672 transitions. [2023-08-31 19:57:57,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:57,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 672 transitions. [2023-08-31 19:57:57,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 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) [2023-08-31 19:57:57,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:57,503 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2023-08-31 19:57:57,503 INFO L175 Difference]: Start difference. First operand has 215 places, 195 transitions, 2456 flow. Second operand 9 states and 672 transitions. [2023-08-31 19:57:57,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 228 transitions, 3131 flow [2023-08-31 19:57:57,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 228 transitions, 3010 flow, removed 7 selfloop flow, removed 11 redundant places. [2023-08-31 19:57:57,527 INFO L231 Difference]: Finished difference. Result has 213 places, 176 transitions, 2082 flow [2023-08-31 19:57:57,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2337, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2082, PETRI_PLACES=213, PETRI_TRANSITIONS=176} [2023-08-31 19:57:57,528 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 168 predicate places. [2023-08-31 19:57:57,528 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 176 transitions, 2082 flow [2023-08-31 19:57:57,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:57,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:57,528 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] [2023-08-31 19:57:57,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-31 19:57:57,528 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:57,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:57,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1301568573, now seen corresponding path program 6 times [2023-08-31 19:57:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:57,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687215371] [2023-08-31 19:57:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:57,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687215371] [2023-08-31 19:57:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687215371] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:57,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:57,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:57:57,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340987756] [2023-08-31 19:57:57,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:57,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:57:57,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:57,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:57:57,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:57:58,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-31 19:57:58,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 176 transitions, 2082 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:58,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:58,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-31 19:57:58,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:58,458 INFO L130 PetriNetUnfolder]: 203/569 cut-off events. [2023-08-31 19:57:58,458 INFO L131 PetriNetUnfolder]: For 6774/6774 co-relation queries the response was YES. [2023-08-31 19:57:58,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4158 conditions, 569 events. 203/569 cut-off events. For 6774/6774 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2680 event pairs, 27 based on Foata normal form. 9/577 useless extension candidates. Maximal degree in co-relation 4074. Up to 333 conditions per place. [2023-08-31 19:57:58,461 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 135 selfloop transitions, 24 changer transitions 76/241 dead transitions. [2023-08-31 19:57:58,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 241 transitions, 3053 flow [2023-08-31 19:57:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 754 transitions. [2023-08-31 19:57:58,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060402684563758 [2023-08-31 19:57:58,463 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 754 transitions. [2023-08-31 19:57:58,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 754 transitions. [2023-08-31 19:57:58,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:58,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 754 transitions. [2023-08-31 19:57:58,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 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) [2023-08-31 19:57:58,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:58,465 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:58,465 INFO L175 Difference]: Start difference. First operand has 213 places, 176 transitions, 2082 flow. Second operand 10 states and 754 transitions. [2023-08-31 19:57:58,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 241 transitions, 3053 flow [2023-08-31 19:57:58,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 241 transitions, 2849 flow, removed 16 selfloop flow, removed 20 redundant places. [2023-08-31 19:57:58,482 INFO L231 Difference]: Finished difference. Result has 201 places, 155 transitions, 1660 flow [2023-08-31 19:57:58,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1660, PETRI_PLACES=201, PETRI_TRANSITIONS=155} [2023-08-31 19:57:58,483 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 156 predicate places. [2023-08-31 19:57:58,483 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 155 transitions, 1660 flow [2023-08-31 19:57:58,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:58,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:58,483 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] [2023-08-31 19:57:58,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-31 19:57:58,484 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:58,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash -549311811, now seen corresponding path program 7 times [2023-08-31 19:57:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:58,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467516209] [2023-08-31 19:57:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:58,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467516209] [2023-08-31 19:57:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467516209] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:58,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:58,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:57:58,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376059417] [2023-08-31 19:57:58,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:58,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:57:58,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:58,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:57:58,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:57:59,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-31 19:57:59,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 155 transitions, 1660 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:59,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:59,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-31 19:57:59,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:59,532 INFO L130 PetriNetUnfolder]: 148/423 cut-off events. [2023-08-31 19:57:59,533 INFO L131 PetriNetUnfolder]: For 3517/3517 co-relation queries the response was YES. [2023-08-31 19:57:59,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 423 events. 148/423 cut-off events. For 3517/3517 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1774 event pairs, 21 based on Foata normal form. 9/431 useless extension candidates. Maximal degree in co-relation 2674. Up to 106 conditions per place. [2023-08-31 19:57:59,535 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 46 selfloop transitions, 9 changer transitions 193/250 dead transitions. [2023-08-31 19:57:59,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 250 transitions, 2944 flow [2023-08-31 19:57:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:57:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:57:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 766 transitions. [2023-08-31 19:57:59,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140939597315436 [2023-08-31 19:57:59,537 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 766 transitions. [2023-08-31 19:57:59,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 766 transitions. [2023-08-31 19:57:59,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:59,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 766 transitions. [2023-08-31 19:57:59,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 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) [2023-08-31 19:57:59,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:59,539 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 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) [2023-08-31 19:57:59,539 INFO L175 Difference]: Start difference. First operand has 201 places, 155 transitions, 1660 flow. Second operand 10 states and 766 transitions. [2023-08-31 19:57:59,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 250 transitions, 2944 flow [2023-08-31 19:57:59,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 250 transitions, 2774 flow, removed 7 selfloop flow, removed 20 redundant places. [2023-08-31 19:57:59,551 INFO L231 Difference]: Finished difference. Result has 183 places, 55 transitions, 519 flow [2023-08-31 19:57:59,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1476, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=519, PETRI_PLACES=183, PETRI_TRANSITIONS=55} [2023-08-31 19:57:59,551 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 138 predicate places. [2023-08-31 19:57:59,551 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 55 transitions, 519 flow [2023-08-31 19:57:59,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 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) [2023-08-31 19:57:59,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:59,552 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] [2023-08-31 19:57:59,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-31 19:57:59,552 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:57:59,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash -282308628, now seen corresponding path program 5 times [2023-08-31 19:57:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:59,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614068219] [2023-08-31 19:57:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:59,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:59,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:59,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614068219] [2023-08-31 19:57:59,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614068219] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:59,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:59,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:57:59,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616912684] [2023-08-31 19:57:59,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:59,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:57:59,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:59,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:57:59,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:58:00,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2023-08-31 19:58:00,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 55 transitions, 519 flow. Second operand has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2023-08-31 19:58:00,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:00,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2023-08-31 19:58:00,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:00,105 INFO L130 PetriNetUnfolder]: 21/92 cut-off events. [2023-08-31 19:58:00,105 INFO L131 PetriNetUnfolder]: For 536/536 co-relation queries the response was YES. [2023-08-31 19:58:00,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 92 events. 21/92 cut-off events. For 536/536 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 162 event pairs, 0 based on Foata normal form. 11/103 useless extension candidates. Maximal degree in co-relation 509. Up to 27 conditions per place. [2023-08-31 19:58:00,106 INFO L137 encePairwiseOnDemand]: 142/149 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2023-08-31 19:58:00,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 78 transitions, 878 flow [2023-08-31 19:58:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 19:58:00,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 19:58:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 663 transitions. [2023-08-31 19:58:00,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562080536912751 [2023-08-31 19:58:00,107 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 663 transitions. [2023-08-31 19:58:00,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 663 transitions. [2023-08-31 19:58:00,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:00,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 663 transitions. [2023-08-31 19:58:00,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.875) internal successors, (663), 8 states have internal predecessors, (663), 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) [2023-08-31 19:58:00,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 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) [2023-08-31 19:58:00,109 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 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) [2023-08-31 19:58:00,109 INFO L175 Difference]: Start difference. First operand has 183 places, 55 transitions, 519 flow. Second operand 8 states and 663 transitions. [2023-08-31 19:58:00,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 78 transitions, 878 flow [2023-08-31 19:58:00,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 78 transitions, 497 flow, removed 35 selfloop flow, removed 75 redundant places. [2023-08-31 19:58:00,112 INFO L231 Difference]: Finished difference. Result has 87 places, 0 transitions, 0 flow [2023-08-31 19:58:00,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=87, PETRI_TRANSITIONS=0} [2023-08-31 19:58:00,112 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 42 predicate places. [2023-08-31 19:58:00,113 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 0 transitions, 0 flow [2023-08-31 19:58:00,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 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) [2023-08-31 19:58:00,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-31 19:58:00,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-31 19:58:00,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-31 19:58:00,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-31 19:58:00,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-31 19:58:00,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-31 19:58:00,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-31 19:58:00,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-31 19:58:00,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-31 19:58:00,116 INFO L445 BasicCegarLoop]: Path program histogram: [7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1] [2023-08-31 19:58:00,119 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:58:00,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:58:00,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:58:00 BasicIcfg [2023-08-31 19:58:00,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:58:00,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:58:00,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:58:00,124 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:58:00,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:44" (3/4) ... [2023-08-31 19:58:00,126 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:58:00,130 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 19:58:00,133 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-31 19:58:00,133 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 19:58:00,133 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 19:58:00,159 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:58:00,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:58:00,160 INFO L158 Benchmark]: Toolchain (without parser) took 76152.83ms. Allocated memory was 86.0MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 61.3MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 956.9MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,160 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:00,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.41ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 53.6MB in the end (delta: 7.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.46ms. Allocated memory is still 86.0MB. Free memory was 53.6MB in the beginning and 51.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,160 INFO L158 Benchmark]: Boogie Preprocessor took 41.22ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,160 INFO L158 Benchmark]: RCFGBuilder took 427.58ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 57.9MB in the end (delta: -8.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,161 INFO L158 Benchmark]: TraceAbstraction took 75181.60ms. Allocated memory was 86.0MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 57.2MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 951.6MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,161 INFO L158 Benchmark]: Witness Printer took 35.31ms. Allocated memory is still 2.1GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:00,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.41ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 53.6MB in the end (delta: 7.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.46ms. Allocated memory is still 86.0MB. Free memory was 53.6MB in the beginning and 51.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.22ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.58ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 57.9MB in the end (delta: -8.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 75181.60ms. Allocated memory was 86.0MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 57.2MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 951.6MB. Max. memory is 16.1GB. * Witness Printer took 35.31ms. Allocated memory is still 2.1GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 95 PlacesBefore, 45 PlacesAfterwards, 91 TransitionsBefore, 41 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 10947 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2229, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 499, dependent conditional: 0, dependent unconditional: 499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 709, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2229, independent: 1065, independent conditional: 0, independent unconditional: 1065, dependent: 455, dependent conditional: 0, dependent unconditional: 455, unknown: 709, unknown conditional: 0, unknown unconditional: 709] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - PositiveResult [Line: 934]: 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, 129 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: 75.1s, OverallIterations: 41, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 63.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10906 SdHoareTripleChecker+Valid, 17.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8667 mSDsluCounter, 5097 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4295 mSDsCounter, 2524 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36755 IncrementalHoareTripleChecker+Invalid, 39279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2524 mSolverCounterUnsat, 802 mSDtfsCounter, 36755 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 540 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33080occurred in iteration=28, InterpolantAutomatonStates: 380, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 874 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 833 ConstructedInterpolants, 0 QuantifiedInterpolants, 14682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 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! [2023-08-31 19:58:00,173 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