./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 17:26:54,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 17:26:54,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 17:26:54,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 17:26:54,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 17:26:54,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 17:26:54,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 17:26:54,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 17:26:54,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 17:26:54,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 17:26:54,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 17:26:54,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 17:26:54,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 17:26:54,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 17:26:54,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 17:26:54,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 17:26:54,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 17:26:54,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 17:26:54,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 17:26:54,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 17:26:54,743 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 17:26:54,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 17:26:54,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 17:26:54,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 17:26:54,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 17:26:54,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 17:26:54,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 17:26:54,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 17:26:54,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 17:26:54,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 17:26:54,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 17:26:54,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 17:26:54,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 17:26:54,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 17:26:54,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 17:26:54,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 17:26:54,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 17:26:54,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 17:26:54,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 17:26:54,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 17:26:54,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 17:26:54,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 17:26:54,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-04-18 17:26:54,789 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 17:26:54,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 17:26:54,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 17:26:54,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 17:26:54,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 17:26:54,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 17:26:54,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 17:26:54,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 17:26:54,792 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 17:26:54,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 17:26:54,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 17:26:54,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 17:26:54,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 17:26:54,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 17:26:54,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 17:26:54,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 17:26:54,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 17:26:54,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 17:26:54,794 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 17:26:54,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 17:26:54,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 17:26:54,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 17:26:54,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 17:26:54,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 17:26:54,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 17:26:54,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-18 17:26:54,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 17:26:54,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:26:54,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 17:26:54,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 17:26:54,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 17:26:54,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 17:26:54,798 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-04-18 17:26:54,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 17:26:54,798 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 17:26:54,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-04-18 17:26:54,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 17:26:54,798 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-04-18 17:26:54,799 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-04-18 17:26:54,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 [2022-04-18 17:26:55,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 17:26:55,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 17:26:55,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 17:26:55,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 17:26:55,068 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 17:26:55,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2022-04-18 17:26:55,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/aa7a3157e/481649fef123436699b24a4eb39d13a9/FLAG2a228a031 [2022-04-18 17:26:55,546 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 17:26:55,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2022-04-18 17:26:55,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/aa7a3157e/481649fef123436699b24a4eb39d13a9/FLAG2a228a031 [2022-04-18 17:26:55,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/aa7a3157e/481649fef123436699b24a4eb39d13a9 [2022-04-18 17:26:55,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 17:26:55,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 17:26:55,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 17:26:55,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 17:26:55,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 17:26:55,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:26:55" (1/1) ... [2022-04-18 17:26:55,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113727f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:55, skipping insertion in model container [2022-04-18 17:26:55,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:26:55" (1/1) ... [2022-04-18 17:26:55,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 17:26:55,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 17:26:56,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i[30003,30016] [2022-04-18 17:26:56,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:26:56,329 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 17:26:56,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i[30003,30016] [2022-04-18 17:26:56,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:26:56,392 INFO L208 MainTranslator]: Completed translation [2022-04-18 17:26:56,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56 WrapperNode [2022-04-18 17:26:56,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 17:26:56,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 17:26:56,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 17:26:56,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 17:26:56,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,452 INFO L137 Inliner]: procedures = 172, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2022-04-18 17:26:56,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 17:26:56,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 17:26:56,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 17:26:56,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 17:26:56,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 17:26:56,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 17:26:56,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 17:26:56,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 17:26:56,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (1/1) ... [2022-04-18 17:26:56,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:26:56,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:26:56,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 17:26:56,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 17:26:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 17:26:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 17:26:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 17:26:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 17:26:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 17:26:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 17:26:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 17:26:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 17:26:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 17:26:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 17:26:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 17:26:56,581 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 17:26:56,715 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 17:26:56,716 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 17:26:56,884 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 17:26:56,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 17:26:56,890 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-18 17:26:56,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:26:56 BoogieIcfgContainer [2022-04-18 17:26:56,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 17:26:56,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 17:26:56,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 17:26:56,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 17:26:56,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 05:26:55" (1/3) ... [2022-04-18 17:26:56,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e979286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:26:56, skipping insertion in model container [2022-04-18 17:26:56,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:26:56" (2/3) ... [2022-04-18 17:26:56,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e979286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:26:56, skipping insertion in model container [2022-04-18 17:26:56,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:26:56" (3/3) ... [2022-04-18 17:26:56,899 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2022-04-18 17:26:56,903 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 17:26:56,903 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 17:26:56,903 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-04-18 17:26:56,904 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 17:26:56,941 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 17:26:56,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-04-18 17:26:56,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:26:56,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-04-18 17:26:56,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-04-18 17:26:57,009 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2022-04-18 17:26:57,014 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 17:26:57,014 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-04-18 17:26:57,159 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:26:57,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:26:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1036943188, now seen corresponding path program 1 times [2022-04-18 17:26:57,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:26:57,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694180464] [2022-04-18 17:26:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:26:57,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:26:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:26:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:26:57,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:26:57,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694180464] [2022-04-18 17:26:57,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694180464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:26:57,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:26:57,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:26:57,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331989163] [2022-04-18 17:26:57,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:26:57,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 17:26:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:26:57,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 17:26:57,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 17:26:57,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,447 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:26:57,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 17:26:57,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,467 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 17:26:57,467 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:26:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:26:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1000077494, now seen corresponding path program 1 times [2022-04-18 17:26:57,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:26:57,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198391896] [2022-04-18 17:26:57,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:26:57,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:26:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:26:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:26:57,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:26:57,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198391896] [2022-04-18 17:26:57,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198391896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:26:57,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:26:57,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:26:57,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320035192] [2022-04-18 17:26:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:26:57,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:26:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:26:57,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:26:57,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:26:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,591 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:26:57,591 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 17:26:57,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:26:57,636 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 17:26:57,636 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:26:57,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:26:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1488904333, now seen corresponding path program 1 times [2022-04-18 17:26:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:26:57,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003424622] [2022-04-18 17:26:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:26:57,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:26:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:26:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:26:57,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:26:57,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003424622] [2022-04-18 17:26:57,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003424622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:26:57,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:26:57,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:26:57,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263375468] [2022-04-18 17:26:57,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:26:57,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:26:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:26:57,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:26:57,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:26:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,712 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:26:57,712 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 17:26:57,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:26:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:26:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:26:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:26:57,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 17:26:57,914 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:26:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:26:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash -690618908, now seen corresponding path program 1 times [2022-04-18 17:26:57,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:26:57,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135083994] [2022-04-18 17:26:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:26:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:26:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 17:26:57,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 17:26:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 17:26:58,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 17:26:58,029 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 17:26:58,030 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 2 remaining) [2022-04-18 17:26:58,031 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 2 remaining) [2022-04-18 17:26:58,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 17:26:58,042 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-18 17:26:58,043 INFO L306 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was UNSAFE,UNKNOWN (1/3) [2022-04-18 17:26:58,046 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 17:26:58,046 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 17:26:58,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 05:26:58 BasicIcfg [2022-04-18 17:26:58,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 17:26:58,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 17:26:58,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 17:26:58,125 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 17:26:58,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:26:56" (3/4) ... [2022-04-18 17:26:58,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 17:26:58,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 17:26:58,128 INFO L158 Benchmark]: Toolchain (without parser) took 2236.05ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 87.4MB in the beginning and 103.7MB in the end (delta: -16.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-04-18 17:26:58,129 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 17:26:58,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.26ms. Allocated memory is still 121.6MB. Free memory was 87.1MB in the beginning and 86.3MB in the end (delta: 849.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 17:26:58,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.95ms. Allocated memory is still 121.6MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:26:58,130 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 121.6MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:26:58,130 INFO L158 Benchmark]: RCFGBuilder took 395.28ms. Allocated memory is still 121.6MB. Free memory was 83.0MB in the beginning and 70.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-04-18 17:26:58,131 INFO L158 Benchmark]: TraceAbstraction took 1230.97ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 70.0MB in the beginning and 104.6MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 17:26:58,131 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 148.9MB. Free memory was 104.6MB in the beginning and 103.7MB in the end (delta: 898.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:26:58,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.26ms. Allocated memory is still 121.6MB. Free memory was 87.1MB in the beginning and 86.3MB in the end (delta: 849.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.95ms. Allocated memory is still 121.6MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.44ms. Allocated memory is still 121.6MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.28ms. Allocated memory is still 121.6MB. Free memory was 83.0MB in the beginning and 70.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1230.97ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 70.0MB in the beginning and 104.6MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 148.9MB. Free memory was 104.6MB in the beginning and 103.7MB in the end (delta: 898.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2651, positive: 2535, positive conditional: 957, positive unconditional: 1578, negative: 116, negative conditional: 97, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2557, positive: 2535, positive conditional: 957, positive unconditional: 1578, negative: 22, negative conditional: 3, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2557, positive: 2535, positive conditional: 957, positive unconditional: 1578, negative: 22, negative conditional: 3, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2566, positive: 2535, positive conditional: 940, positive unconditional: 1595, negative: 31, negative conditional: 9, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2566, positive: 2535, positive conditional: 409, positive unconditional: 2126, negative: 31, negative conditional: 2, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2566, positive: 2535, positive conditional: 409, positive unconditional: 2126, negative: 31, negative conditional: 2, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1420, positive: 1399, positive conditional: 8, positive unconditional: 1391, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1420, positive: 1378, positive conditional: 0, positive unconditional: 1378, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 21, positive conditional: 6, positive unconditional: 15, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 60, positive conditional: 5, positive unconditional: 55, negative: 30, negative conditional: 1, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2566, positive: 1136, positive conditional: 401, positive unconditional: 735, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 1420, unknown conditional: 9, unknown unconditional: 1411] , Statistics on independence cache: Total cache size (in pairs): 1420, Positive cache size: 1399, Positive conditional cache size: 8, Positive unconditional cache size: 1391, Negative cache size: 21, Negative conditional cache size: 1, Negative unconditional cache size: 20, Eliminated conditions: 538, Maximal queried relation: 2, Independence queries for same thread: 94 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 327, Number of trivial persistent sets: 257, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1597, positive: 1578, positive conditional: 0, positive unconditional: 1578, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2651, positive: 2535, positive conditional: 957, positive unconditional: 1578, negative: 116, negative conditional: 97, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2557, positive: 2535, positive conditional: 957, positive unconditional: 1578, negative: 22, negative conditional: 3, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2557, positive: 2535, positive conditional: 957, positive unconditional: 1578, negative: 22, negative conditional: 3, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2566, positive: 2535, positive conditional: 940, positive unconditional: 1595, negative: 31, negative conditional: 9, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2566, positive: 2535, positive conditional: 409, positive unconditional: 2126, negative: 31, negative conditional: 2, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2566, positive: 2535, positive conditional: 409, positive unconditional: 2126, negative: 31, negative conditional: 2, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1420, positive: 1399, positive conditional: 8, positive unconditional: 1391, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1420, positive: 1378, positive conditional: 0, positive unconditional: 1378, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 21, positive conditional: 6, positive unconditional: 15, negative: 21, negative conditional: 1, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 60, positive conditional: 5, positive unconditional: 55, negative: 30, negative conditional: 1, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2566, positive: 1136, positive conditional: 401, positive unconditional: 735, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 1420, unknown conditional: 9, unknown unconditional: 1411] , Statistics on independence cache: Total cache size (in pairs): 1420, Positive cache size: 1399, Positive conditional cache size: 8, Positive unconditional cache size: 1391, Negative cache size: 21, Negative conditional cache size: 1, Negative unconditional cache size: 20, Eliminated conditions: 538, Maximal queried relation: 2, Independence queries for same thread: 94 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, n=0, t1={5:0}, t2={3:0}, x=0] [L711] 0 int i; VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, n=0, t1={5:0}, t2={3:0}, x=0] [L712] 0 x = 0 VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, n=0, t1={5:0}, t2={3:0}, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [\old(argc)=51, __VERIFIER_nondet_int()=1, argc=51, argv={53:52}, argv={53:52}, n=1, n = __VERIFIER_nondet_int()=50, t1={5:0}, t2={3:0}, x=0] [L714] EXPR 0 n > 0 VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, n=1, t1={5:0}, t2={3:0}, x=0] [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=1, x=0] [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, n=1, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L700] 1 x <= n VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L716] 0 i = 0 VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L716] 0 i < n VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L716] COND TRUE 0 i < n VAL [\old(argc)=51, argc=51, argv={53:52}, argv={53:52}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=51, arg={0:0}, argc=51, argv={53:52}, argv={53:52}, i=0, n=1, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L716] 0 i++ VAL [\old(argc)=51, arg={0:0}, arg={0:0}, argc=51, argv={53:52}, argv={53:52}, i=0, i++=0, n=1, t1={5:0}, t2={3:0}, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L716] 0 i++ VAL [\old(argc)=51, arg={0:0}, arg={0:0}, argc=51, argv={53:52}, argv={53:52}, i=1, i++=0, n=1, t1={5:0}, t2={3:0}, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L716] 0 i < n VAL [\old(argc)=51, arg={0:0}, arg={0:0}, argc=51, argv={53:52}, argv={53:52}, i=1, n=1, t=0, t1={5:0}, t2={3:0}, x=1] [L716] 0 i < n VAL [\old(argc)=51, arg={0:0}, arg={0:0}, argc=51, argv={53:52}, argv={53:52}, i=1, n=1, t=0, t1={5:0}, t2={3:0}, x=1] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1, x = t + 1=54] [L716] COND FALSE 0 !(i < n) VAL [\old(argc)=51, arg={0:0}, arg={0:0}, argc=51, argv={53:52}, argv={53:52}, i=1, n=1, t=0, t1={5:0}, t2={3:0}, x=1, x = t + 1=54] [L700] 1 x <= n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1, x = t + 1=54] Now there is a data race on ~x~0 between C: x = t + 1 [706] and C: x <= n [700] - UnprovableResult [Line: 700]: 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 for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 141 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 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 could not prove your program: unable to determine feasibility of some traces [2022-04-18 17:26:58,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-04-18 17:26:58,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE