./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_19-call_by_ptr_rc.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/04-mutex_19-call_by_ptr_rc.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 0a92542e2dda55880e261e8e9c4c926ece76b9696d64e1535984774b57178a24 --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 17:28:51,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:28:51,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:28:51,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:28:51,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:28:51,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:28:51,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:28:51,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:28:51,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:28:51,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:28:51,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:28:51,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:28:51,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:28:51,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:28:51,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:28:51,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:28:51,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:28:51,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:28:51,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:28:51,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:28:51,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:28:51,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:28:51,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:28:51,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:28:51,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:28:51,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:28:51,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:28:51,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:28:51,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:28:51,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:28:51,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:28:51,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:28:51,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:28:51,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:28:51,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:28:51,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:28:51,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:28:51,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:28:51,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:28:51,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:28:51,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:28:51,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:28:51,405 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:28:51,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:28:51,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:28:51,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:28:51,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:28:51,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:28:51,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:28:51,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:28:51,408 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:28:51,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:28:51,408 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:28:51,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:28:51,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:28:51,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:28:51,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:51,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:28:51,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:28:51,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:28:51,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:28:51,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:28:51,411 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:28:51,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:28:51,412 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:28:51,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:28:51,412 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:28:51,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a92542e2dda55880e261e8e9c4c926ece76b9696d64e1535984774b57178a24 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:28:51,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:28:51,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:28:51,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:28:51,662 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:28:51,662 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:28:51,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_19-call_by_ptr_rc.i [2023-08-29 17:28:52,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:28:52,797 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:28:52,798 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_19-call_by_ptr_rc.i [2023-08-29 17:28:52,806 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/184009642/260a39b19cfa4f198f45097ac0b084cf/FLAG13265602f [2023-08-29 17:28:52,818 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/184009642/260a39b19cfa4f198f45097ac0b084cf [2023-08-29 17:28:52,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:28:52,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:28:52,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:52,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:28:52,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:28:52,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:52" (1/1) ... [2023-08-29 17:28:52,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702a88ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:52, skipping insertion in model container [2023-08-29 17:28:52,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:52" (1/1) ... [2023-08-29 17:28:52,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:28:52,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:28:53,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:53,067 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:28:53,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:53,134 WARN L667 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:28:53,139 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:28:53,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53 WrapperNode [2023-08-29 17:28:53,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:53,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:28:53,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:28:53,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:28:53,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,191 INFO L138 Inliner]: procedures = 166, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2023-08-29 17:28:53,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:28:53,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:28:53,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:28:53,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:28:53,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:28:53,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:28:53,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:28:53,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:28:53,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (1/1) ... [2023-08-29 17:28:53,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:53,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:28:53,256 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 17:28:53,278 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 17:28:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:28:53,287 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:28:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:28:53,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:28:53,288 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 17:28:53,413 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:28:53,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:28:53,538 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:28:53,543 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:28:53,543 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 17:28:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:53 BoogieIcfgContainer [2023-08-29 17:28:53,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:28:53,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:28:53,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:28:53,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:28:53,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:28:52" (1/3) ... [2023-08-29 17:28:53,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9939bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:28:53, skipping insertion in model container [2023-08-29 17:28:53,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:53" (2/3) ... [2023-08-29 17:28:53,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9939bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:28:53, skipping insertion in model container [2023-08-29 17:28:53,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:53" (3/3) ... [2023-08-29 17:28:53,549 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_19-call_by_ptr_rc.i [2023-08-29 17:28:53,553 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:28:53,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:28:53,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 17:28:53,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:28:53,589 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 17:28:53,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 99 transitions, 206 flow [2023-08-29 17:28:53,653 INFO L130 PetriNetUnfolder]: 3/98 cut-off events. [2023-08-29 17:28:53,653 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 17:28:53,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 3/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-29 17:28:53,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 99 transitions, 206 flow [2023-08-29 17:28:53,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 91 transitions, 185 flow [2023-08-29 17:28:53,661 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:28:53,666 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 91 transitions, 185 flow [2023-08-29 17:28:53,668 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 91 transitions, 185 flow [2023-08-29 17:28:53,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 185 flow [2023-08-29 17:28:53,683 INFO L130 PetriNetUnfolder]: 3/91 cut-off events. [2023-08-29 17:28:53,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:53,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-29 17:28:53,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 1530 [2023-08-29 17:28:55,587 INFO L134 LiptonReduction]: Checked pairs total: 3742 [2023-08-29 17:28:55,587 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-29 17:28:55,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:28:55,600 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;@3302b4b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:28:55,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 17:28:55,602 INFO L130 PetriNetUnfolder]: 1/6 cut-off events. [2023-08-29 17:28:55,602 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:55,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:55,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 17:28:55,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:55,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash 10178532, now seen corresponding path program 1 times [2023-08-29 17:28:55,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:55,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888804965] [2023-08-29 17:28:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:55,710 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 17:28:55,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:55,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888804965] [2023-08-29 17:28:55,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888804965] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:55,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:55,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 17:28:55,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330970802] [2023-08-29 17:28:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:55,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:28:55,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:55,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:28:55,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:28:55,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2023-08-29 17:28:55,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 17:28:55,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:55,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2023-08-29 17:28:55,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:55,759 INFO L130 PetriNetUnfolder]: 23/74 cut-off events. [2023-08-29 17:28:55,760 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:55,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 74 events. 23/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 229 event pairs, 15 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 118. Up to 49 conditions per place. [2023-08-29 17:28:55,761 INFO L137 encePairwiseOnDemand]: 172/173 looper letters, 12 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-29 17:28:55,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 23 transitions, 73 flow [2023-08-29 17:28:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:28:55,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:28:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 205 transitions. [2023-08-29 17:28:55,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5924855491329479 [2023-08-29 17:28:55,769 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 205 transitions. [2023-08-29 17:28:55,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 205 transitions. [2023-08-29 17:28:55,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:55,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 205 transitions. [2023-08-29 17:28:55,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 102.5) internal successors, (205), 2 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 17:28:55,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 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 17:28:55,776 INFO L81 ComplementDD]: Finished complementDD. Result has 3 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 17:28:55,777 INFO L175 Difference]: Start difference. First operand has 26 places, 24 transitions, 51 flow. Second operand 2 states and 205 transitions. [2023-08-29 17:28:55,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 23 transitions, 73 flow [2023-08-29 17:28:55,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:55,782 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 48 flow [2023-08-29 17:28:55,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-08-29 17:28:55,785 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-08-29 17:28:55,785 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 48 flow [2023-08-29 17:28:55,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 17:28:55,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:55,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:28:55,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:28:55,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:55,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash 315512791, now seen corresponding path program 1 times [2023-08-29 17:28:55,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:55,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866723080] [2023-08-29 17:28:55,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:55,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:55,827 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 17:28:55,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:55,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866723080] [2023-08-29 17:28:55,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866723080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:55,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:55,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020319206] [2023-08-29 17:28:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:55,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:55,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:55,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 173 [2023-08-29 17:28:55,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 17:28:55,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:55,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 173 [2023-08-29 17:28:55,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:55,903 INFO L130 PetriNetUnfolder]: 66/165 cut-off events. [2023-08-29 17:28:55,904 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:55,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 165 events. 66/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 615 event pairs, 19 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 305. Up to 78 conditions per place. [2023-08-29 17:28:55,907 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 26 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-08-29 17:28:55,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 37 transitions, 140 flow [2023-08-29 17:28:55,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:55,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-29 17:28:55,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741811175337187 [2023-08-29 17:28:55,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-29 17:28:55,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-29 17:28:55,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:55,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-29 17:28:55,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states 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 17:28:55,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:55,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:55,917 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 48 flow. Second operand 3 states and 298 transitions. [2023-08-29 17:28:55,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 37 transitions, 140 flow [2023-08-29 17:28:55,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:28:55,918 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 100 flow [2023-08-29 17:28:55,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2023-08-29 17:28:55,918 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-29 17:28:55,919 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 100 flow [2023-08-29 17:28:55,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 17:28:55,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:55,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:55,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:28:55,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:55,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:55,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2053360727, now seen corresponding path program 1 times [2023-08-29 17:28:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:55,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380667592] [2023-08-29 17:28:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:55,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:55,976 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 17:28:55,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:55,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380667592] [2023-08-29 17:28:55,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380667592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:55,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:55,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:55,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897222062] [2023-08-29 17:28:55,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:55,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:55,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:55,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:55,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 173 [2023-08-29 17:28:55,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 17:28:55,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:55,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 173 [2023-08-29 17:28:55,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:56,022 INFO L130 PetriNetUnfolder]: 81/194 cut-off events. [2023-08-29 17:28:56,022 INFO L131 PetriNetUnfolder]: For 70/72 co-relation queries the response was YES. [2023-08-29 17:28:56,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 194 events. 81/194 cut-off events. For 70/72 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 715 event pairs, 20 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 456. Up to 118 conditions per place. [2023-08-29 17:28:56,024 INFO L137 encePairwiseOnDemand]: 167/173 looper letters, 23 selfloop transitions, 7 changer transitions 1/40 dead transitions. [2023-08-29 17:28:56,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 40 transitions, 194 flow [2023-08-29 17:28:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:56,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2023-08-29 17:28:56,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606936416184971 [2023-08-29 17:28:56,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2023-08-29 17:28:56,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2023-08-29 17:28:56,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:56,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2023-08-29 17:28:56,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states 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 17:28:56,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:56,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:56,028 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 100 flow. Second operand 3 states and 291 transitions. [2023-08-29 17:28:56,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 40 transitions, 194 flow [2023-08-29 17:28:56,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:56,029 INFO L231 Difference]: Finished difference. Result has 31 places, 34 transitions, 144 flow [2023-08-29 17:28:56,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=31, PETRI_TRANSITIONS=34} [2023-08-29 17:28:56,030 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-29 17:28:56,030 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 34 transitions, 144 flow [2023-08-29 17:28:56,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 17:28:56,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:56,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:56,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:28:56,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:56,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2107762206, now seen corresponding path program 1 times [2023-08-29 17:28:56,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:56,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644201301] [2023-08-29 17:28:56,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:56,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:56,058 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 17:28:56,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:56,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644201301] [2023-08-29 17:28:56,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644201301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:56,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:56,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:56,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856998424] [2023-08-29 17:28:56,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:56,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:56,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:56,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:56,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:56,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 173 [2023-08-29 17:28:56,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 34 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 17:28:56,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:56,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 173 [2023-08-29 17:28:56,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:56,105 INFO L130 PetriNetUnfolder]: 86/199 cut-off events. [2023-08-29 17:28:56,106 INFO L131 PetriNetUnfolder]: For 215/237 co-relation queries the response was YES. [2023-08-29 17:28:56,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 199 events. 86/199 cut-off events. For 215/237 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 732 event pairs, 19 based on Foata normal form. 7/171 useless extension candidates. Maximal degree in co-relation 578. Up to 134 conditions per place. [2023-08-29 17:28:56,107 INFO L137 encePairwiseOnDemand]: 167/173 looper letters, 20 selfloop transitions, 8 changer transitions 4/42 dead transitions. [2023-08-29 17:28:56,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 244 flow [2023-08-29 17:28:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-08-29 17:28:56,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5472061657032755 [2023-08-29 17:28:56,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-08-29 17:28:56,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-08-29 17:28:56,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:56,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-08-29 17:28:56,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states 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 17:28:56,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:56,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:56,111 INFO L175 Difference]: Start difference. First operand has 31 places, 34 transitions, 144 flow. Second operand 3 states and 284 transitions. [2023-08-29 17:28:56,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 244 flow [2023-08-29 17:28:56,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:56,112 INFO L231 Difference]: Finished difference. Result has 33 places, 37 transitions, 184 flow [2023-08-29 17:28:56,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=33, PETRI_TRANSITIONS=37} [2023-08-29 17:28:56,113 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-29 17:28:56,113 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 37 transitions, 184 flow [2023-08-29 17:28:56,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 17:28:56,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:56,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:56,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:28:56,114 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:56,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1607194690, now seen corresponding path program 1 times [2023-08-29 17:28:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:56,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717512640] [2023-08-29 17:28:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:56,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:28:56,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:28:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:28:56,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:28:56,156 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:28:56,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 17:28:56,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 17:28:56,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 17:28:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 17:28:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 17:28:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 17:28:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 17:28:56,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 17:28:56,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:28:56,158 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 17:28:56,162 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:28:56,162 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:28:56,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:28:56 BasicIcfg [2023-08-29 17:28:56,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:28:56,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:28:56,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:28:56,179 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:28:56,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:53" (3/4) ... [2023-08-29 17:28:56,181 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:28:56,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:28:56,181 INFO L158 Benchmark]: Toolchain (without parser) took 3361.08ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 60.5MB in the beginning and 36.1MB in the end (delta: 24.4MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-08-29 17:28:56,181 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 81.8MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:28:56,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.72ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 41.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 17:28:56,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.17ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:56,182 INFO L158 Benchmark]: Boogie Preprocessor took 41.46ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 37.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:56,183 INFO L158 Benchmark]: RCFGBuilder took 310.68ms. Allocated memory is still 81.8MB. Free memory was 37.2MB in the beginning and 50.3MB in the end (delta: -13.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 17:28:56,183 INFO L158 Benchmark]: TraceAbstraction took 2632.85ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 49.6MB in the beginning and 36.1MB in the end (delta: 13.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2023-08-29 17:28:56,183 INFO L158 Benchmark]: Witness Printer took 2.20ms. Allocated memory is still 102.8MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:28:56,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 81.8MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.72ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 41.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.17ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.46ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 37.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.68ms. Allocated memory is still 81.8MB. Free memory was 37.2MB in the beginning and 50.3MB in the end (delta: -13.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2632.85ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 49.6MB in the beginning and 36.1MB in the end (delta: 13.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 2.20ms. Allocated memory is still 102.8MB. Free memory is still 36.1MB. 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: 1.9s, 92 PlacesBefore, 26 PlacesAfterwards, 91 TransitionsBefore, 24 TransitionsAfterwards, 1530 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 3742 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1524, independent: 1346, independent conditional: 0, independent unconditional: 1346, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 777, independent: 742, independent conditional: 0, independent unconditional: 742, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1524, independent: 604, independent conditional: 0, independent unconditional: 604, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 777, unknown conditional: 0, unknown unconditional: 777] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 697]: Data race detected Data race detected The following path leads to a data race: [L686] 0 int glob; [L687] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L688] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L702] 0 pthread_t id; [L703] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, id={3:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L704] CALL 0 foo(bar) [L681] 0 int i = 0; VAL [arg={0:0}, arg={0:0}, callback={-1:1}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L691] EXPR 1 glob+1 VAL [arg={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L681] COND TRUE 0 i < 10 [L682] COND TRUE 0 __VERIFIER_nondet_int() [L683] CALL 0 callback() [L697] 0 glob+1 VAL [arg={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L691] EXPR 1 glob+1 VAL [arg={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L691] 1 glob=glob+1 VAL [arg={0:0}, arg={0:0}, glob=1, glob=glob+1=25, mutex1={1:0}, mutex2={2:0}] [L697] 0 glob+1 VAL [arg={0:0}, arg={0:0}, glob=1, glob=glob+1=25, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~glob~0 between C: glob=glob+1 [691] and C: glob+1 [697] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: 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: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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, 114 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 28 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=4, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 17:28:56,223 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