./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_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 c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:57:48,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:57:48,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:57:48,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:57:48,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:57:48,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:57:48,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:57:48,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:57:48,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:57:48,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:57:48,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:57:48,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:57:48,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:57:48,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:57:48,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:57:48,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:57:48,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:57:48,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:57:48,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:57:48,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:57:48,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:57:48,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:57:48,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:57:48,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:57:48,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:57:48,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:57:48,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:57:48,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:57:48,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:57:48,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:57:48,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:57:48,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:57:48,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:57:48,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:57:48,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:57:48,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:57:48,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:57:48,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:57:48,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:57:48,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:57:48,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:57:48,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:57:48,516 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:57:48,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:57:48,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:57:48,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:57:48,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:57:48,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:57:48,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:57:48,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:57:48,519 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:57:48,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:57:48,520 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:57:48,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:57:48,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:57:48,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:57:48,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:57:48,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:57:48,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:57:48,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:57:48,522 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:57:48,522 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:57:48,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:57:48,523 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:57:48,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:57:48,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:57:48,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:57:48,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:57:48,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:48,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:57:48,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:57:48,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:57:48,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:57:48,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:57:48,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:57:48,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:57:48,526 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:57:48,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:57:48,527 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:57:48,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:57:48,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:57:48,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:57:48,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:57:48,882 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:57:48,883 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:57:48,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2023-08-29 01:57:49,981 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:57:50,264 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:57:50,264 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2023-08-29 01:57:50,282 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/743072846/6a6c0c87564b40ebb14192ed0217e900/FLAGe36588ffa [2023-08-29 01:57:50,293 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/743072846/6a6c0c87564b40ebb14192ed0217e900 [2023-08-29 01:57:50,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:57:50,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:57:50,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:50,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:57:50,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:57:50,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aeda8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50, skipping insertion in model container [2023-08-29 01:57:50,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:57:50,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:57:50,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:50,690 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:57:50,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:50,807 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:57:50,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50 WrapperNode [2023-08-29 01:57:50,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:50,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:50,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:57:50,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:57:50,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,871 INFO L138 Inliner]: procedures = 266, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-08-29 01:57:50,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:50,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:57:50,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:57:50,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:57:50,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:57:50,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:57:50,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:57:50,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:57:50,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (1/1) ... [2023-08-29 01:57:50,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:50,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:57:50,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 01:57:50,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 01:57:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:57:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:57:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:57:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:57:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:57:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:57:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:57:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:57:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:57:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:57:51,009 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:57:51,201 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:57:51,204 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:57:51,379 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:57:51,387 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:57:51,387 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:57:51,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:51 BoogieIcfgContainer [2023-08-29 01:57:51,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:57:51,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:57:51,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:57:51,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:57:51,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:57:50" (1/3) ... [2023-08-29 01:57:51,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226dce5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:57:51, skipping insertion in model container [2023-08-29 01:57:51,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:50" (2/3) ... [2023-08-29 01:57:51,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226dce5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:57:51, skipping insertion in model container [2023-08-29 01:57:51,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:51" (3/3) ... [2023-08-29 01:57:51,399 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2023-08-29 01:57:51,407 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:57:51,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:57:51,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 01:57:51,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:57:51,474 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 01:57:51,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2023-08-29 01:57:51,542 INFO L130 PetriNetUnfolder]: 3/76 cut-off events. [2023-08-29 01:57:51,542 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:51,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-29 01:57:51,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2023-08-29 01:57:51,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 155 flow [2023-08-29 01:57:51,552 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:57:51,564 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 155 flow [2023-08-29 01:57:51,566 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 155 flow [2023-08-29 01:57:51,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 155 flow [2023-08-29 01:57:51,593 INFO L130 PetriNetUnfolder]: 3/76 cut-off events. [2023-08-29 01:57:51,593 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:51,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-29 01:57:51,595 INFO L119 LiptonReduction]: Number of co-enabled transitions 1020 [2023-08-29 01:57:53,890 INFO L134 LiptonReduction]: Checked pairs total: 3997 [2023-08-29 01:57:53,891 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-29 01:57:53,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:57:53,909 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;@3669ebda, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:57:53,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 01:57:53,913 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-29 01:57:53,913 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:53,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:53,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:57:53,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 01:57:53,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash 260568128, now seen corresponding path program 1 times [2023-08-29 01:57:53,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:53,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524994234] [2023-08-29 01:57:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:53,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:57:54,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:54,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524994234] [2023-08-29 01:57:54,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524994234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:54,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:54,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:54,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529848038] [2023-08-29 01:57:54,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:54,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:54,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:54,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 138 [2023-08-29 01:57:54,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:54,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 138 [2023-08-29 01:57:54,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:54,320 INFO L130 PetriNetUnfolder]: 63/173 cut-off events. [2023-08-29 01:57:54,321 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:54,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 173 events. 63/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 715 event pairs, 24 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 310. Up to 82 conditions per place. [2023-08-29 01:57:54,325 INFO L137 encePairwiseOnDemand]: 130/138 looper letters, 26 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-08-29 01:57:54,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 37 transitions, 141 flow [2023-08-29 01:57:54,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:54,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2023-08-29 01:57:54,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5748792270531401 [2023-08-29 01:57:54,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2023-08-29 01:57:54,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2023-08-29 01:57:54,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:54,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2023-08-29 01:57:54,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,355 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,357 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 238 transitions. [2023-08-29 01:57:54,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 37 transitions, 141 flow [2023-08-29 01:57:54,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:57:54,361 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 100 flow [2023-08-29 01:57:54,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, 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 01:57:54,365 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-29 01:57:54,366 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 100 flow [2023-08-29 01:57:54,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:54,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:54,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:57:54,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 01:57:54,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1417966142, now seen corresponding path program 1 times [2023-08-29 01:57:54,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794137786] [2023-08-29 01:57:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:57:54,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:54,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794137786] [2023-08-29 01:57:54,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794137786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:54,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:54,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:54,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483939648] [2023-08-29 01:57:54,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:54,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:54,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:54,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:54,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:54,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 138 [2023-08-29 01:57:54,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:54,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 138 [2023-08-29 01:57:54,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:54,522 INFO L130 PetriNetUnfolder]: 54/163 cut-off events. [2023-08-29 01:57:54,522 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2023-08-29 01:57:54,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 163 events. 54/163 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 662 event pairs, 28 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 364. Up to 105 conditions per place. [2023-08-29 01:57:54,524 INFO L137 encePairwiseOnDemand]: 133/138 looper letters, 18 selfloop transitions, 6 changer transitions 2/36 dead transitions. [2023-08-29 01:57:54,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 176 flow [2023-08-29 01:57:54,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2023-08-29 01:57:54,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.538647342995169 [2023-08-29 01:57:54,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2023-08-29 01:57:54,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2023-08-29 01:57:54,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:54,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2023-08-29 01:57:54,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,529 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,529 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 100 flow. Second operand 3 states and 223 transitions. [2023-08-29 01:57:54,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 176 flow [2023-08-29 01:57:54,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:57:54,531 INFO L231 Difference]: Finished difference. Result has 30 places, 33 transitions, 130 flow [2023-08-29 01:57:54,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, 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=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=30, PETRI_TRANSITIONS=33} [2023-08-29 01:57:54,532 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-29 01:57:54,532 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 33 transitions, 130 flow [2023-08-29 01:57:54,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:54,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:54,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:57:54,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 01:57:54,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1716698633, now seen corresponding path program 1 times [2023-08-29 01:57:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:54,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430749302] [2023-08-29 01:57:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:57:54,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:54,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430749302] [2023-08-29 01:57:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430749302] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:54,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986492428] [2023-08-29 01:57:54,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:54,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:54,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:54,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:54,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:54,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 138 [2023-08-29 01:57:54,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 33 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:54,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 138 [2023-08-29 01:57:54,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:54,654 INFO L130 PetriNetUnfolder]: 64/182 cut-off events. [2023-08-29 01:57:54,654 INFO L131 PetriNetUnfolder]: For 113/123 co-relation queries the response was YES. [2023-08-29 01:57:54,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 182 events. 64/182 cut-off events. For 113/123 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 738 event pairs, 19 based on Foata normal form. 2/172 useless extension candidates. Maximal degree in co-relation 437. Up to 95 conditions per place. [2023-08-29 01:57:54,655 INFO L137 encePairwiseOnDemand]: 132/138 looper letters, 17 selfloop transitions, 7 changer transitions 10/44 dead transitions. [2023-08-29 01:57:54,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 237 flow [2023-08-29 01:57:54,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:54,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-08-29 01:57:54,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531400966183575 [2023-08-29 01:57:54,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-08-29 01:57:54,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-08-29 01:57:54,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:54,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-08-29 01:57:54,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,661 INFO L175 Difference]: Start difference. First operand has 30 places, 33 transitions, 130 flow. Second operand 3 states and 229 transitions. [2023-08-29 01:57:54,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 237 flow [2023-08-29 01:57:54,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:57:54,663 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 158 flow [2023-08-29 01:57:54,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-29 01:57:54,664 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-29 01:57:54,665 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 158 flow [2023-08-29 01:57:54,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:57:54,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:54,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:54,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:57:54,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 01:57:54,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1087079268, now seen corresponding path program 1 times [2023-08-29 01:57:54,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:54,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714707261] [2023-08-29 01:57:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:54,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:57:54,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:57:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:57:54,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:57:54,709 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:57:54,710 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 01:57:54,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 01:57:54,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-29 01:57:54,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-29 01:57:54,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 01:57:54,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 01:57:54,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 01:57:54,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:57:54,713 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 01:57:54,718 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:57:54,718 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:57:54,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:57:54 BasicIcfg [2023-08-29 01:57:54,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:57:54,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:57:54,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:57:54,738 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:57:54,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:51" (3/4) ... [2023-08-29 01:57:54,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:57:54,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:57:54,741 INFO L158 Benchmark]: Toolchain (without parser) took 4444.54ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.5MB in the beginning and 66.3MB in the end (delta: -1.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-08-29 01:57:54,741 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:54,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.12ms. Allocated memory is still 88.1MB. Free memory was 64.2MB in the beginning and 37.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-08-29 01:57:54,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.81ms. Allocated memory is still 88.1MB. Free memory was 37.0MB in the beginning and 34.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:57:54,742 INFO L158 Benchmark]: Boogie Preprocessor took 46.13ms. Allocated memory is still 88.1MB. Free memory was 34.9MB in the beginning and 33.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:54,743 INFO L158 Benchmark]: RCFGBuilder took 470.34ms. Allocated memory is still 88.1MB. Free memory was 33.2MB in the beginning and 57.4MB in the end (delta: -24.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2023-08-29 01:57:54,743 INFO L158 Benchmark]: TraceAbstraction took 3344.00ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 56.9MB in the beginning and 66.3MB in the end (delta: -9.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2023-08-29 01:57:54,744 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 107.0MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:54,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.12ms. Allocated memory is still 88.1MB. Free memory was 64.2MB in the beginning and 37.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.81ms. Allocated memory is still 88.1MB. Free memory was 37.0MB in the beginning and 34.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.13ms. Allocated memory is still 88.1MB. Free memory was 34.9MB in the beginning and 33.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 470.34ms. Allocated memory is still 88.1MB. Free memory was 33.2MB in the beginning and 57.4MB in the end (delta: -24.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3344.00ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 56.9MB in the beginning and 66.3MB in the end (delta: -9.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 107.0MB. Free memory is still 66.3MB. 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: 2.3s, 77 PlacesBefore, 26 PlacesAfterwards, 76 TransitionsBefore, 23 TransitionsAfterwards, 1020 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 3997 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1507, independent: 1239, independent conditional: 0, independent unconditional: 1239, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 551, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1507, independent: 725, independent conditional: 0, independent unconditional: 725, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 551, unknown conditional: 0, unknown unconditional: 551] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 933]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L938] 0 int i = __VERIFIER_nondet_int(); [L939] 0 pthread_t id; [L940] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=1, id={3:0}, m={1:0}, n={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L942] COND TRUE 0 \read(i) [L945] COND TRUE 0 \read(i) [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob++=0, glob=1, i=1, id={3:0}, m={1:0}, n={2:0}, pthread_mutex_lock(&m)=25, pthread_mutex_lock(&n)=0] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob++=0, glob++=26, glob=1, i=1, id={3:0}, m={1:0}, n={2:0}, pthread_mutex_lock(&m)=25] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] Now there is a data race on ~glob~0 between C: glob++ [946] and C: glob++ [933] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 940]: 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: 933]: 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, 94 locations, 7 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: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 33 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 01:57:54,797 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