./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.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 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:30:52,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:30:52,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:30:52,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:30:52,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:30:52,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:30:52,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:30:52,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:30:52,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:30:52,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:30:52,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:30:52,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:30:52,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:30:52,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:30:52,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:30:52,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:30:52,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:30:52,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:30:52,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:30:52,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:30:52,422 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:30:52,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:30:52,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:30:52,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:30:52,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:30:52,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:30:52,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:30:52,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:30:52,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:30:52,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:30:52,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:30:52,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:30:52,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:30:52,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:30:52,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:30:52,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:30:52,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:30:52,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:30:52,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:30:52,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:30:52,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:30:52,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:30:52,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:30:52,475 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:30:52,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:30:52,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:30:52,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:30:52,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:30:52,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:30:52,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:30:52,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:30:52,478 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:30:52,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:30:52,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:30:52,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:30:52,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:30:52,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:30:52,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:30:52,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:30:52,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:30:52,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:30:52,481 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:30:52,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:30:52,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:30:52,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:30:52,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:30:52,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:30:52,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:30:52,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:30:52,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:30:52,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:30:52,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:30:52,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:30:52,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:30:52,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:30:52,484 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:30:52,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:30:52,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:30:52,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 [2022-04-18 16:30:52,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:30:52,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:30:52,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:30:52,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:30:52,720 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:30:52,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2022-04-18 16:30:52,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16dafc06/b59f04e7b8bb48eeba48c99978cb187b/FLAG9da79b97c [2022-04-18 16:30:53,222 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:30:53,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2022-04-18 16:30:53,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16dafc06/b59f04e7b8bb48eeba48c99978cb187b/FLAG9da79b97c [2022-04-18 16:30:53,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16dafc06/b59f04e7b8bb48eeba48c99978cb187b [2022-04-18 16:30:53,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:30:53,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:30:53,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:30:53,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:30:53,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:30:53,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:30:53" (1/1) ... [2022-04-18 16:30:53,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcec8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:53, skipping insertion in model container [2022-04-18 16:30:53,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:30:53" (1/1) ... [2022-04-18 16:30:53,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:30:53,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:30:54,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43296,43309] [2022-04-18 16:30:54,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43503,43516] [2022-04-18 16:30:54,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43783,43796] [2022-04-18 16:30:54,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:30:54,310 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:30:54,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43296,43309] [2022-04-18 16:30:54,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43503,43516] [2022-04-18 16:30:54,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i[43783,43796] [2022-04-18 16:30:54,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:30:54,445 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:30:54,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54 WrapperNode [2022-04-18 16:30:54,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:30:54,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:30:54,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:30:54,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:30:54,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,541 INFO L137 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 483 [2022-04-18 16:30:54,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:30:54,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:30:54,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:30:54,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:30:54,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:30:54,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:30:54,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:30:54,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:30:54,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (1/1) ... [2022-04-18 16:30:54,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:30:54,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:30:54,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:30:54,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:30:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 16:30:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 16:30:54,704 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 16:30:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 16:30:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:30:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:30:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:30:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:30:54,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 16:30:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:30:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:30:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:30:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:30:54,707 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:30:54,845 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:30:54,846 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:30:55,524 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:30:55,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:30:55,536 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 16:30:55,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:55 BoogieIcfgContainer [2022-04-18 16:30:55,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:30:55,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:30:55,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:30:55,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:30:55,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:30:53" (1/3) ... [2022-04-18 16:30:55,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349a1b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:55, skipping insertion in model container [2022-04-18 16:30:55,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:54" (2/3) ... [2022-04-18 16:30:55,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349a1b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:55, skipping insertion in model container [2022-04-18 16:30:55,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:55" (3/3) ... [2022-04-18 16:30:55,546 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2022-04-18 16:30:55,553 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:30:55,554 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:30:55,554 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-04-18 16:30:55,554 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:30:55,670 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:30:55,709 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:30:55,714 INFO L340 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 [2022-04-18 16:30:55,714 INFO L341 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-04-18 16:30:55,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 547 places, 555 transitions, 1126 flow [2022-04-18 16:30:55,918 INFO L129 PetriNetUnfolder]: 15/553 cut-off events. [2022-04-18 16:30:55,919 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:30:55,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 553 events. 15/553 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 793 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-04-18 16:30:55,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 547 places, 555 transitions, 1126 flow [2022-04-18 16:30:55,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 535 places, 543 transitions, 1095 flow [2022-04-18 16:30:55,948 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2022-04-18 16:30:55,948 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:30:55,948 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:55,949 INFO L255 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, 1, 1, 1, 1] [2022-04-18 16:30:55,950 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 16:30:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:55,954 INFO L85 PathProgramCache]: Analyzing trace with hash 513904802, now seen corresponding path program 1 times [2022-04-18 16:30:55,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:55,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865255774] [2022-04-18 16:30:55,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:55,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:56,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:56,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865255774] [2022-04-18 16:30:56,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865255774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:56,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:56,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:56,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138042016] [2022-04-18 16:30:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:56,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:56,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:56,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:56,260 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 555 [2022-04-18 16:30:56,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 543 transitions, 1095 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:56,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:56,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 555 [2022-04-18 16:30:56,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:56,594 INFO L129 PetriNetUnfolder]: 59/1327 cut-off events. [2022-04-18 16:30:56,594 INFO L130 PetriNetUnfolder]: For 33/34 co-relation queries the response was YES. [2022-04-18 16:30:56,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1327 events. 59/1327 cut-off events. For 33/34 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5621 event pairs, 27 based on Foata normal form. 23/1185 useless extension candidates. Maximal degree in co-relation 1149. Up to 79 conditions per place. [2022-04-18 16:30:56,610 INFO L132 encePairwiseOnDemand]: 547/555 looper letters, 15 selfloop transitions, 2 changer transitions 0/532 dead transitions. [2022-04-18 16:30:56,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 532 transitions, 1107 flow [2022-04-18 16:30:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:30:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:30:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1604 transitions. [2022-04-18 16:30:56,626 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9633633633633634 [2022-04-18 16:30:56,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1604 transitions. [2022-04-18 16:30:56,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1604 transitions. [2022-04-18 16:30:56,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:56,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1604 transitions. [2022-04-18 16:30:56,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.6666666666666) internal successors, (1604), 3 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:56,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:56,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:56,649 INFO L186 Difference]: Start difference. First operand has 535 places, 543 transitions, 1095 flow. Second operand 3 states and 1604 transitions. [2022-04-18 16:30:56,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 532 transitions, 1107 flow [2022-04-18 16:30:56,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 532 transitions, 1102 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 16:30:56,664 INFO L242 Difference]: Finished difference. Result has 528 places, 532 transitions, 1072 flow [2022-04-18 16:30:56,667 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=528, PETRI_TRANSITIONS=532} [2022-04-18 16:30:56,669 INFO L335 CegarLoopForPetriNet]: 535 programPoint places, -7 predicate places. [2022-04-18 16:30:56,670 INFO L478 AbstractCegarLoop]: Abstraction has has 528 places, 532 transitions, 1072 flow [2022-04-18 16:30:56,671 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:56,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:56,671 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:30:56,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:30:56,672 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 16:30:56,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:56,672 INFO L85 PathProgramCache]: Analyzing trace with hash -628617836, now seen corresponding path program 1 times [2022-04-18 16:30:56,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:56,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120718052] [2022-04-18 16:30:56,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:56,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:56,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120718052] [2022-04-18 16:30:56,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120718052] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:56,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:56,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004435902] [2022-04-18 16:30:56,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:56,729 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:56,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:56,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:56,732 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 555 [2022-04-18 16:30:56,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 532 transitions, 1072 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:56,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:56,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 555 [2022-04-18 16:30:56,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:57,115 INFO L129 PetriNetUnfolder]: 71/1704 cut-off events. [2022-04-18 16:30:57,116 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-04-18 16:30:57,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 1704 events. 71/1704 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6911 event pairs, 27 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 1762. Up to 85 conditions per place. [2022-04-18 16:30:57,139 INFO L132 encePairwiseOnDemand]: 552/555 looper letters, 15 selfloop transitions, 2 changer transitions 0/531 dead transitions. [2022-04-18 16:30:57,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 531 transitions, 1104 flow [2022-04-18 16:30:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:30:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:30:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1599 transitions. [2022-04-18 16:30:57,147 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9603603603603603 [2022-04-18 16:30:57,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1599 transitions. [2022-04-18 16:30:57,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1599 transitions. [2022-04-18 16:30:57,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:57,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1599 transitions. [2022-04-18 16:30:57,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 533.0) internal successors, (1599), 3 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:57,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:57,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:57,156 INFO L186 Difference]: Start difference. First operand has 528 places, 532 transitions, 1072 flow. Second operand 3 states and 1599 transitions. [2022-04-18 16:30:57,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 531 transitions, 1104 flow [2022-04-18 16:30:57,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 531 transitions, 1100 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:30:57,187 INFO L242 Difference]: Finished difference. Result has 527 places, 531 transitions, 1070 flow [2022-04-18 16:30:57,188 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1070, PETRI_PLACES=527, PETRI_TRANSITIONS=531} [2022-04-18 16:30:57,190 INFO L335 CegarLoopForPetriNet]: 535 programPoint places, -8 predicate places. [2022-04-18 16:30:57,190 INFO L478 AbstractCegarLoop]: Abstraction has has 527 places, 531 transitions, 1070 flow [2022-04-18 16:30:57,191 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:57,191 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:57,191 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:30:57,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:30:57,191 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 16:30:57,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:57,192 INFO L85 PathProgramCache]: Analyzing trace with hash -568710566, now seen corresponding path program 1 times [2022-04-18 16:30:57,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:57,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604858132] [2022-04-18 16:30:57,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:57,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:57,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:57,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604858132] [2022-04-18 16:30:57,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604858132] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:57,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:57,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:30:57,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002862129] [2022-04-18 16:30:57,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:57,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:30:57,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:57,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:30:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:30:57,337 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 555 [2022-04-18 16:30:57,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 531 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 320.5) internal successors, (1923), 6 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:30:57,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:57,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 555 [2022-04-18 16:30:57,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:27,687 INFO L129 PetriNetUnfolder]: 90108/202625 cut-off events. [2022-04-18 16:31:27,687 INFO L130 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-04-18 16:31:28,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337292 conditions, 202625 events. 90108/202625 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 2195519 event pairs, 85782 based on Foata normal form. 0/173600 useless extension candidates. Maximal degree in co-relation 337246. Up to 134415 conditions per place. [2022-04-18 16:31:29,111 INFO L132 encePairwiseOnDemand]: 549/555 looper letters, 220 selfloop transitions, 5 changer transitions 0/530 dead transitions. [2022-04-18 16:31:29,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 530 transitions, 1518 flow [2022-04-18 16:31:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2140 transitions. [2022-04-18 16:31:29,119 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6426426426426426 [2022-04-18 16:31:29,119 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2140 transitions. [2022-04-18 16:31:29,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2140 transitions. [2022-04-18 16:31:29,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:29,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2140 transitions. [2022-04-18 16:31:29,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 356.6666666666667) internal successors, (2140), 6 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:29,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 555.0) internal successors, (3885), 7 states have internal predecessors, (3885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:29,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 555.0) internal successors, (3885), 7 states have internal predecessors, (3885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:29,133 INFO L186 Difference]: Start difference. First operand has 527 places, 531 transitions, 1070 flow. Second operand 6 states and 2140 transitions. [2022-04-18 16:31:29,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 530 transitions, 1518 flow [2022-04-18 16:31:29,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 530 transitions, 1514 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:29,143 INFO L242 Difference]: Finished difference. Result has 529 places, 530 transitions, 1074 flow [2022-04-18 16:31:29,144 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1074, PETRI_PLACES=529, PETRI_TRANSITIONS=530} [2022-04-18 16:31:29,145 INFO L335 CegarLoopForPetriNet]: 535 programPoint places, -6 predicate places. [2022-04-18 16:31:29,145 INFO L478 AbstractCegarLoop]: Abstraction has has 529 places, 530 transitions, 1074 flow [2022-04-18 16:31:29,147 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.5) internal successors, (1923), 6 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:29,147 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:29,147 INFO L255 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, 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] [2022-04-18 16:31:29,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:31:29,147 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 16:31:29,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:29,148 INFO L85 PathProgramCache]: Analyzing trace with hash -472156325, now seen corresponding path program 1 times [2022-04-18 16:31:29,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:29,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446260571] [2022-04-18 16:31:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:29,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:29,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:29,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446260571] [2022-04-18 16:31:29,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446260571] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:29,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:29,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:29,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720860846] [2022-04-18 16:31:29,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:29,253 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:29,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:29,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:29,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:29,257 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 555 [2022-04-18 16:31:29,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 530 transitions, 1074 flow. Second operand has 6 states, 6 states have (on average 321.5) internal successors, (1929), 6 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:29,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:29,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 555 [2022-04-18 16:31:29,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand