./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/09-regions_28-list2alloc.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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:07:37,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:07:37,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:07:37,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:07:37,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:07:37,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:07:37,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:07:37,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:07:37,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:07:37,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:07:37,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:07:37,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:07:37,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:07:37,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:07:37,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:07:37,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:07:37,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:07:37,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:07:37,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:07:37,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:07:37,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:07:37,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:07:37,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:07:37,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:07:37,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:07:37,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:07:37,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:07:37,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:07:37,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:07:37,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:07:37,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:07:37,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:07:37,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:07:37,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:07:37,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:07:37,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:07:37,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:07:37,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:07:37,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:07:37,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:07:37,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:07:37,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:07:37,509 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:07:37,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:07:37,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:07:37,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:07:37,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:07:37,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:07:37,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:07:37,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:07:37,512 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:07:37,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:07:37,513 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:07:37,513 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:07:37,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:07:37,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:07:37,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:07:37,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:07:37,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:07:37,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:07:37,514 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:07:37,515 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:07:37,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:07:37,515 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:07:37,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:07:37,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:07:37,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:07:37,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:07:37,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:07:37,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:07:37,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:07:37,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:07:37,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:07:37,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:07:37,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:07:37,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:07:37,517 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:07:37,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:07:37,518 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:07:37,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:07:37,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:07:37,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:07:37,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:07:37,870 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:07:37,870 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:07:37,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-29 18:07:39,163 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:07:39,464 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:07:39,464 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-29 18:07:39,487 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ed44db2/80d7ba41cd604df08574f406834b900c/FLAG569b20c9c [2023-08-29 18:07:39,504 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ed44db2/80d7ba41cd604df08574f406834b900c [2023-08-29 18:07:39,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:07:39,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:07:39,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:07:39,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:07:39,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:07:39,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:07:39" (1/1) ... [2023-08-29 18:07:39,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431c0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:39, skipping insertion in model container [2023-08-29 18:07:39,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:07:39" (1/1) ... [2023-08-29 18:07:39,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:07:39,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:07:40,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:07:40,124 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:07:40,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:07:40,291 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:07:40,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40 WrapperNode [2023-08-29 18:07:40,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:07:40,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:07:40,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:07:40,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:07:40,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,379 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-08-29 18:07:40,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:07:40,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:07:40,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:07:40,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:07:40,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,440 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:07:40,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:07:40,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:07:40,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:07:40,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (1/1) ... [2023-08-29 18:07:40,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:07:40,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:07:40,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:07:40,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:07:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:07:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:07:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:07:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:07:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:07:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:07:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:07:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 18:07:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:07:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:07:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:07:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:07:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:07:40,503 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:07:40,619 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:07:40,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:07:40,978 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:07:40,986 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:07:40,986 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 18:07:40,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:07:40 BoogieIcfgContainer [2023-08-29 18:07:40,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:07:40,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:07:40,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:07:40,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:07:40,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:07:39" (1/3) ... [2023-08-29 18:07:40,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0d28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:07:40, skipping insertion in model container [2023-08-29 18:07:40,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:07:40" (2/3) ... [2023-08-29 18:07:40,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0d28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:07:40, skipping insertion in model container [2023-08-29 18:07:40,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:07:40" (3/3) ... [2023-08-29 18:07:40,994 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2023-08-29 18:07:41,001 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:07:41,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:07:41,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 18:07:41,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:07:41,108 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 18:07:41,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 172 transitions, 349 flow [2023-08-29 18:07:41,233 INFO L130 PetriNetUnfolder]: 0/171 cut-off events. [2023-08-29 18:07:41,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:07:41,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 18:07:41,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 172 transitions, 349 flow [2023-08-29 18:07:41,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 171 transitions, 345 flow [2023-08-29 18:07:41,250 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:07:41,265 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-29 18:07:41,270 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-29 18:07:41,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 171 transitions, 345 flow [2023-08-29 18:07:41,309 INFO L130 PetriNetUnfolder]: 0/171 cut-off events. [2023-08-29 18:07:41,309 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:07:41,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 18:07:41,313 INFO L119 LiptonReduction]: Number of co-enabled transitions 2544 [2023-08-29 18:07:59,188 WARN L222 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 145 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:08:13,169 WARN L222 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 145 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:08:30,106 WARN L222 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:08:39,563 WARN L222 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:08:51,318 WARN L222 SmtUtils]: Spent 11.75s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:09:08,500 WARN L222 SmtUtils]: Spent 17.18s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:09:19,110 WARN L222 SmtUtils]: Spent 10.61s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:09:19,115 INFO L134 LiptonReduction]: Checked pairs total: 17799 [2023-08-29 18:09:19,115 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-29 18:09:19,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:09:19,139 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;@56e5069f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:09:19,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-29 18:09:19,141 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:09:19,141 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:09:19,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:09:19,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:09:19,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 18:09:19,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:09:19,146 INFO L85 PathProgramCache]: Analyzing trace with hash 567, now seen corresponding path program 1 times [2023-08-29 18:09:19,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:09:19,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988335306] [2023-08-29 18:09:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:09:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:09:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:09:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:09:19,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:09:19,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988335306] [2023-08-29 18:09:19,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988335306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:09:19,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:09:19,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:09:19,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112095713] [2023-08-29 18:09:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:09:19,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:09:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:09:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:09:19,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:09:19,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 312 [2023-08-29 18:09:19,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:09:19,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 312 [2023-08-29 18:09:19,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:09:19,426 INFO L130 PetriNetUnfolder]: 60/273 cut-off events. [2023-08-29 18:09:19,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:09:19,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 273 events. 60/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1125 event pairs, 60 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 408. Up to 140 conditions per place. [2023-08-29 18:09:19,432 INFO L137 encePairwiseOnDemand]: 305/312 looper letters, 19 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-08-29 18:09:19,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 139 flow [2023-08-29 18:09:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:09:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:09:19,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 368 transitions. [2023-08-29 18:09:19,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-08-29 18:09:19,453 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 368 transitions. [2023-08-29 18:09:19,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 368 transitions. [2023-08-29 18:09:19,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:09:19,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 368 transitions. [2023-08-29 18:09:19,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 184.0) internal successors, (368), 2 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,471 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,472 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 2 states and 368 transitions. [2023-08-29 18:09:19,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 139 flow [2023-08-29 18:09:19,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:09:19,480 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 100 flow [2023-08-29 18:09:19,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2023-08-29 18:09:19,487 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2023-08-29 18:09:19,487 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 100 flow [2023-08-29 18:09:19,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:09:19,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 18:09:19,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:09:19,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 18:09:19,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:09:19,499 INFO L85 PathProgramCache]: Analyzing trace with hash 539660998, now seen corresponding path program 1 times [2023-08-29 18:09:19,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:09:19,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662817812] [2023-08-29 18:09:19,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:09:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:09:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:09:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:09:19,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:09:19,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662817812] [2023-08-29 18:09:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662817812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:09:19,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:09:19,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:09:19,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258209751] [2023-08-29 18:09:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:09:19,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:09:19,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:09:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:09:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:09:19,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 312 [2023-08-29 18:09:19,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 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) [2023-08-29 18:09:19,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:09:19,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 312 [2023-08-29 18:09:19,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:09:19,802 INFO L130 PetriNetUnfolder]: 78/319 cut-off events. [2023-08-29 18:09:19,802 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:09:19,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 319 events. 78/319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1326 event pairs, 56 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 498. Up to 171 conditions per place. [2023-08-29 18:09:19,804 INFO L137 encePairwiseOnDemand]: 308/312 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-08-29 18:09:19,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 154 flow [2023-08-29 18:09:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:09:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:09:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2023-08-29 18:09:19,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2023-08-29 18:09:19,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2023-08-29 18:09:19,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2023-08-29 18:09:19,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:09:19,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2023-08-29 18:09:19,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,818 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:19,819 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 100 flow. Second operand 3 states and 519 transitions. [2023-08-29 18:09:19,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 154 flow [2023-08-29 18:09:19,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:09:19,821 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2023-08-29 18:09:19,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-08-29 18:09:19,823 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-08-29 18:09:19,823 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2023-08-29 18:09:19,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 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) [2023-08-29 18:09:19,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:09:19,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:09:19,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:09:19,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 18:09:19,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:09:19,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1305759350, now seen corresponding path program 1 times [2023-08-29 18:09:19,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:09:19,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54944] [2023-08-29 18:09:19,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:09:19,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:09:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:09:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:09:20,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:09:20,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54944] [2023-08-29 18:09:20,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54944] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:09:20,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:09:20,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:09:20,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636793946] [2023-08-29 18:09:20,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:09:20,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:09:20,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:09:20,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:09:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:09:20,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 312 [2023-08-29 18:09:20,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:20,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:09:20,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 312 [2023-08-29 18:09:20,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:09:20,754 INFO L130 PetriNetUnfolder]: 212/558 cut-off events. [2023-08-29 18:09:20,754 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-08-29 18:09:20,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 558 events. 212/558 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2392 event pairs, 130 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 1061. Up to 382 conditions per place. [2023-08-29 18:09:20,758 INFO L137 encePairwiseOnDemand]: 301/312 looper letters, 52 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-29 18:09:20,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 87 transitions, 342 flow [2023-08-29 18:09:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:09:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:09:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2023-08-29 18:09:20,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.468482905982906 [2023-08-29 18:09:20,761 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2023-08-29 18:09:20,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2023-08-29 18:09:20,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:09:20,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2023-08-29 18:09:20,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.16666666666666) internal successors, (877), 6 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:20,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:20,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:20,777 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 6 states and 877 transitions. [2023-08-29 18:09:20,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 87 transitions, 342 flow [2023-08-29 18:09:20,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 87 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:09:20,779 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 260 flow [2023-08-29 18:09:20,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=64, PETRI_TRANSITIONS=70} [2023-08-29 18:09:20,780 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2023-08-29 18:09:20,780 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 260 flow [2023-08-29 18:09:20,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:20,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:09:20,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:09:20,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:09:20,781 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 18:09:20,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:09:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash -163821742, now seen corresponding path program 1 times [2023-08-29 18:09:20,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:09:20,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114288385] [2023-08-29 18:09:20,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:09:20,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:09:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:09:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:09:21,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:09:21,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114288385] [2023-08-29 18:09:21,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114288385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:09:21,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:09:21,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:09:21,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082153508] [2023-08-29 18:09:21,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:09:21,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:09:21,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:09:21,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:09:21,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:09:21,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 312 [2023-08-29 18:09:21,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 70 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 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) [2023-08-29 18:09:21,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:09:21,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 312 [2023-08-29 18:09:21,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:09:21,667 INFO L130 PetriNetUnfolder]: 371/844 cut-off events. [2023-08-29 18:09:21,667 INFO L131 PetriNetUnfolder]: For 242/246 co-relation queries the response was YES. [2023-08-29 18:09:21,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2103 conditions, 844 events. 371/844 cut-off events. For 242/246 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3784 event pairs, 116 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 2094. Up to 625 conditions per place. [2023-08-29 18:09:21,672 INFO L137 encePairwiseOnDemand]: 290/312 looper letters, 92 selfloop transitions, 80 changer transitions 8/189 dead transitions. [2023-08-29 18:09:21,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 964 flow [2023-08-29 18:09:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:09:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:09:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2023-08-29 18:09:21,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909188034188034 [2023-08-29 18:09:21,676 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2023-08-29 18:09:21,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2023-08-29 18:09:21,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:09:21,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2023-08-29 18:09:21,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,683 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 260 flow. Second operand 6 states and 919 transitions. [2023-08-29 18:09:21,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 964 flow [2023-08-29 18:09:21,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 189 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:09:21,689 INFO L231 Difference]: Finished difference. Result has 73 places, 145 transitions, 788 flow [2023-08-29 18:09:21,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=73, PETRI_TRANSITIONS=145} [2023-08-29 18:09:21,690 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 13 predicate places. [2023-08-29 18:09:21,690 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 145 transitions, 788 flow [2023-08-29 18:09:21,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 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) [2023-08-29 18:09:21,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:09:21,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:09:21,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:09:21,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 18:09:21,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:09:21,692 INFO L85 PathProgramCache]: Analyzing trace with hash -613171814, now seen corresponding path program 1 times [2023-08-29 18:09:21,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:09:21,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949469667] [2023-08-29 18:09:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:09:21,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:09:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:09:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:09:21,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:09:21,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949469667] [2023-08-29 18:09:21,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949469667] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:09:21,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:09:21,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:09:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026178977] [2023-08-29 18:09:21,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:09:21,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:09:21,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:09:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:09:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:09:21,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 312 [2023-08-29 18:09:21,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 145 transitions, 788 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:09:21,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 312 [2023-08-29 18:09:21,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:09:21,926 INFO L130 PetriNetUnfolder]: 217/610 cut-off events. [2023-08-29 18:09:21,926 INFO L131 PetriNetUnfolder]: For 403/427 co-relation queries the response was YES. [2023-08-29 18:09:21,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 610 events. 217/610 cut-off events. For 403/427 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2914 event pairs, 27 based on Foata normal form. 7/607 useless extension candidates. Maximal degree in co-relation 1736. Up to 206 conditions per place. [2023-08-29 18:09:21,931 INFO L137 encePairwiseOnDemand]: 307/312 looper letters, 34 selfloop transitions, 4 changer transitions 4/156 dead transitions. [2023-08-29 18:09:21,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 156 transitions, 908 flow [2023-08-29 18:09:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:09:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:09:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2023-08-29 18:09:21,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561965811965812 [2023-08-29 18:09:21,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2023-08-29 18:09:21,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2023-08-29 18:09:21,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:09:21,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2023-08-29 18:09:21,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,937 INFO L175 Difference]: Start difference. First operand has 73 places, 145 transitions, 788 flow. Second operand 3 states and 526 transitions. [2023-08-29 18:09:21,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 156 transitions, 908 flow [2023-08-29 18:09:21,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 156 transitions, 884 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-29 18:09:21,944 INFO L231 Difference]: Finished difference. Result has 76 places, 145 transitions, 778 flow [2023-08-29 18:09:21,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=76, PETRI_TRANSITIONS=145} [2023-08-29 18:09:21,945 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2023-08-29 18:09:21,945 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 145 transitions, 778 flow [2023-08-29 18:09:21,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:09:21,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:09:21,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:09:21,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:09:21,946 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-29 18:09:21,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:09:21,947 INFO L85 PathProgramCache]: Analyzing trace with hash 178969448, now seen corresponding path program 2 times [2023-08-29 18:09:21,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:09:21,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252856630] [2023-08-29 18:09:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:09:21,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:09:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:09:21,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:09:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:09:22,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:09:22,033 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:09:22,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-29 18:09:22,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2023-08-29 18:09:22,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-29 18:09:22,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-08-29 18:09:22,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-29 18:09:22,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-29 18:09:22,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:09:22,038 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-29 18:09:22,043 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:09:22,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:09:22,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:09:22 BasicIcfg [2023-08-29 18:09:22,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:09:22,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:09:22,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:09:22,098 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:09:22,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:07:40" (3/4) ... [2023-08-29 18:09:22,100 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 18:09:22,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:09:22,102 INFO L158 Benchmark]: Toolchain (without parser) took 102592.37ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 48.6MB in the beginning and 67.0MB in the end (delta: -18.4MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-08-29 18:09:22,102 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:09:22,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 781.74ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.4MB in the beginning and 42.4MB in the end (delta: 6.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-08-29 18:09:22,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.12ms. Allocated memory is still 88.1MB. Free memory was 42.4MB in the beginning and 64.1MB in the end (delta: -21.7MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-08-29 18:09:22,103 INFO L158 Benchmark]: Boogie Preprocessor took 61.35ms. Allocated memory is still 88.1MB. Free memory was 64.1MB in the beginning and 61.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:09:22,103 INFO L158 Benchmark]: RCFGBuilder took 543.34ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 63.4MB in the end (delta: -1.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-08-29 18:09:22,103 INFO L158 Benchmark]: TraceAbstraction took 101107.66ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 62.9MB in the beginning and 67.0MB in the end (delta: -4.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-08-29 18:09:22,104 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 107.0MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:09:22,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 781.74ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.4MB in the beginning and 42.4MB in the end (delta: 6.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.12ms. Allocated memory is still 88.1MB. Free memory was 42.4MB in the beginning and 64.1MB in the end (delta: -21.7MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.35ms. Allocated memory is still 88.1MB. Free memory was 64.1MB in the beginning and 61.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.34ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 63.4MB in the end (delta: -1.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 101107.66ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 62.9MB in the beginning and 67.0MB in the end (delta: -4.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 107.0MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.8s, 175 PlacesBefore, 60 PlacesAfterwards, 171 TransitionsBefore, 56 TransitionsAfterwards, 2544 CoEnabledTransitionPairs, 9 FixpointIterations, 109 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 140 TotalNumberOfCompositions, 17799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4147, independent: 3268, independent conditional: 0, independent unconditional: 3268, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1148, independent: 1047, independent conditional: 0, independent unconditional: 1047, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4147, independent: 2221, independent conditional: 0, independent unconditional: 2221, dependent: 778, dependent conditional: 0, dependent unconditional: 778, unknown: 1148, unknown conditional: 0, unknown unconditional: 1148] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; [L1251] EXPR 0 A->datum VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, t1={9:0}] [L1251] 0 data = &A->datum [L1237] EXPR 1 A->datum VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1253] 0 *data = 42 VAL [*data = 42=52, A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, data={-3:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->datum = x [1229] * C: *data = 42 [1253] * C: p->datum = x [1229] * C: B = new(5) [1247] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: A = new(3) [1246] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 228 locations, 21 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: 100.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 98.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 368 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 817 IncrementalHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 21 mSDtfsCounter, 817 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 18:09:22,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE