./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.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-ext/30_Function_Pointer3_vs.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 c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 17:24:45,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 17:24:45,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 17:24:45,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 17:24:45,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 17:24:45,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 17:24:45,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 17:24:45,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 17:24:45,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 17:24:45,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 17:24:45,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 17:24:45,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 17:24:45,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 17:24:45,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 17:24:45,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 17:24:45,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 17:24:45,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 17:24:45,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 17:24:45,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 17:24:45,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 17:24:45,300 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 17:24:45,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 17:24:45,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 17:24:45,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 17:24:45,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 17:24:45,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 17:24:45,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 17:24:45,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 17:24:45,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 17:24:45,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 17:24:45,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 17:24:45,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 17:24:45,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 17:24:45,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 17:24:45,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 17:24:45,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 17:24:45,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 17:24:45,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 17:24:45,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 17:24:45,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 17:24:45,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 17:24:45,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 17:24:45,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-04-18 17:24:45,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 17:24:45,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 17:24:45,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 17:24:45,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 17:24:45,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 17:24:45,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 17:24:45,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 17:24:45,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 17:24:45,342 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 17:24:45,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 17:24:45,342 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 17:24:45,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 17:24:45,344 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 17:24:45,344 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 17:24:45,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 17:24:45,345 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 17:24:45,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 17:24:45,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 17:24:45,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 17:24:45,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-18 17:24:45,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 17:24:45,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:24:45,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 17:24:45,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 17:24:45,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 17:24:45,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 17:24:45,346 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-04-18 17:24:45,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 17:24:45,347 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 17:24:45,347 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-04-18 17:24:45,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 17:24:45,347 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-04-18 17:24:45,347 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-04-18 17:24:45,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c [2022-04-18 17:24:45,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 17:24:45,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 17:24:45,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 17:24:45,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 17:24:45,580 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 17:24:45,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.i [2022-04-18 17:24:45,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9b8ffe62f/27ecde43b83141d59479465b2ac7e457/FLAG19a16a564 [2022-04-18 17:24:46,049 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 17:24:46,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.i [2022-04-18 17:24:46,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9b8ffe62f/27ecde43b83141d59479465b2ac7e457/FLAG19a16a564 [2022-04-18 17:24:46,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9b8ffe62f/27ecde43b83141d59479465b2ac7e457 [2022-04-18 17:24:46,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 17:24:46,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 17:24:46,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 17:24:46,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 17:24:46,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 17:24:46,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d879e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46, skipping insertion in model container [2022-04-18 17:24:46,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 17:24:46,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 17:24:46,358 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-ext/30_Function_Pointer3_vs.i[30577,30590] [2022-04-18 17:24:46,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:24:46,367 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 17:24:46,391 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-ext/30_Function_Pointer3_vs.i[30577,30590] [2022-04-18 17:24:46,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:24:46,416 INFO L208 MainTranslator]: Completed translation [2022-04-18 17:24:46,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46 WrapperNode [2022-04-18 17:24:46,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 17:24:46,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 17:24:46,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 17:24:46,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 17:24:46,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,466 INFO L137 Inliner]: procedures = 174, calls = 19, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 96 [2022-04-18 17:24:46,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 17:24:46,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 17:24:46,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 17:24:46,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 17:24:46,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 17:24:46,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 17:24:46,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 17:24:46,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 17:24:46,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (1/1) ... [2022-04-18 17:24:46,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:24:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:24:46,535 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 17:24:46,544 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 17:24:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 17:24:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 17:24:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 17:24:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 17:24:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 17:24:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 17:24:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 17:24:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 17:24:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 17:24:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 17:24:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 17:24:46,565 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 17:24:46,666 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 17:24:46,668 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 17:24:46,869 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 17:24:46,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 17:24:46,902 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 17:24:46,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:24:46 BoogieIcfgContainer [2022-04-18 17:24:46,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 17:24:46,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 17:24:46,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 17:24:46,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 17:24:46,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 05:24:46" (1/3) ... [2022-04-18 17:24:46,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:24:46, skipping insertion in model container [2022-04-18 17:24:46,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:24:46" (2/3) ... [2022-04-18 17:24:46,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:24:46, skipping insertion in model container [2022-04-18 17:24:46,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:24:46" (3/3) ... [2022-04-18 17:24:46,911 INFO L111 eAbstractionObserver]: Analyzing ICFG 30_Function_Pointer3_vs.i [2022-04-18 17:24:46,914 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 17:24:46,915 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 17:24:46,915 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-04-18 17:24:46,915 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 17:24:46,965 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 17:24:46,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-04-18 17:24:46,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:24:46,998 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 17:24:47,015 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 17:24:47,040 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2022-04-18 17:24:47,048 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 17:24:47,048 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-18 17:24:47,178 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:24:47,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:24:47,182 INFO L85 PathProgramCache]: Analyzing trace with hash -975524666, now seen corresponding path program 1 times [2022-04-18 17:24:47,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:24:47,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815842752] [2022-04-18 17:24:47,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:24:47,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:24:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:24:47,345 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 17:24:47,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:24:47,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815842752] [2022-04-18 17:24:47,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815842752] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:24:47,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:24:47,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:24:47,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887410662] [2022-04-18 17:24:47,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:24:47,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 17:24:47,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:24:47,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 17:24:47,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 17:24:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,384 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:24:47,385 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 17:24:47,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 17:24:47,407 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:24:47,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:24:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash -975524604, now seen corresponding path program 1 times [2022-04-18 17:24:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:24:47,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316292909] [2022-04-18 17:24:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:24:47,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:24:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:24:47,495 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 17:24:47,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:24:47,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316292909] [2022-04-18 17:24:47,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316292909] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:24:47,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:24:47,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:24:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884057209] [2022-04-18 17:24:47,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:24:47,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:24:47,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:24:47,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:24:47,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:24:47,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,499 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:24:47,500 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 17:24:47,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:47,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 17:24:47,722 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:24:47,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:24:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1590411762, now seen corresponding path program 1 times [2022-04-18 17:24:47,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:24:47,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199679540] [2022-04-18 17:24:47,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:24:47,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:24:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:24:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-04-18 17:24:47,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:24:47,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199679540] [2022-04-18 17:24:47,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199679540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:24:47,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:24:47,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 17:24:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95846293] [2022-04-18 17:24:47,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:24:47,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:24:47,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:24:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:24:47,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:24:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,847 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:24:47,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 17:24:47,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:47,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:47,877 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 17:24:47,878 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:24:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:24:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1590411731, now seen corresponding path program 1 times [2022-04-18 17:24:47,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:24:47,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9628922] [2022-04-18 17:24:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:24:47,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:24:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:24:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-18 17:24:48,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:24:48,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9628922] [2022-04-18 17:24:48,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9628922] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:24:48,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957516086] [2022-04-18 17:24:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:24:48,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:24:48,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:24:48,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:24:48,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 17:24:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:24:48,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 17:24:48,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:24:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-18 17:24:48,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:24:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-18 17:24:48,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957516086] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 17:24:48,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 17:24:48,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-04-18 17:24:48,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112331070] [2022-04-18 17:24:48,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 17:24:48,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 17:24:48,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:24:48,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 17:24:48,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 17:24:48,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:48,593 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:24:48,593 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 17:24:48,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:48,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:48,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:48,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:24:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:24:48,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 17:24:48,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-18 17:24:48,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:24:48,834 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:24:48,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:24:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash 106285345, now seen corresponding path program 1 times [2022-04-18 17:24:48,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:24:48,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496974579] [2022-04-18 17:24:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:24:48,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:24:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 17:24:48,858 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 17:24:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 17:24:48,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 17:24:48,920 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 17:24:48,921 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2022-04-18 17:24:48,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 17:24:48,946 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 17:24:48,947 INFO L306 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was UNSAFE (1/3) [2022-04-18 17:24:48,949 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 17:24:48,949 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 17:24:49,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 05:24:49 BasicIcfg [2022-04-18 17:24:49,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 17:24:49,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 17:24:49,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 17:24:49,011 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 17:24:49,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:24:46" (3/4) ... [2022-04-18 17:24:49,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 17:24:49,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 17:24:49,014 INFO L158 Benchmark]: Toolchain (without parser) took 2927.45ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 89.7MB in the beginning and 56.3MB in the end (delta: 33.4MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2022-04-18 17:24:49,016 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 25.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 17:24:49,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.38ms. Allocated memory is still 127.9MB. Free memory was 89.5MB in the beginning and 91.8MB in the end (delta: -2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 17:24:49,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.28ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:24:49,018 INFO L158 Benchmark]: Boogie Preprocessor took 44.37ms. Allocated memory is still 127.9MB. Free memory was 89.7MB in the beginning and 88.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:24:49,019 INFO L158 Benchmark]: RCFGBuilder took 390.72ms. Allocated memory is still 127.9MB. Free memory was 88.1MB in the beginning and 71.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 17:24:49,020 INFO L158 Benchmark]: TraceAbstraction took 2104.79ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 71.3MB in the beginning and 56.3MB in the end (delta: 15.0MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-04-18 17:24:49,020 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 159.4MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 17:24:49,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 25.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.38ms. Allocated memory is still 127.9MB. Free memory was 89.5MB in the beginning and 91.8MB in the end (delta: -2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.28ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.37ms. Allocated memory is still 127.9MB. Free memory was 89.7MB in the beginning and 88.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.72ms. Allocated memory is still 127.9MB. Free memory was 88.1MB in the beginning and 71.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2104.79ms. Allocated memory was 127.9MB in the beginning and 159.4MB in the end (delta: 31.5MB). Free memory was 71.3MB in the beginning and 56.3MB in the end (delta: 15.0MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 159.4MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4535, positive: 4151, positive conditional: 909, positive unconditional: 3242, negative: 384, negative conditional: 370, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4179, positive: 4151, positive conditional: 909, positive unconditional: 3242, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4179, positive: 4151, positive conditional: 909, positive unconditional: 3242, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4196, positive: 4151, positive conditional: 848, positive unconditional: 3303, negative: 45, negative conditional: 17, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4196, positive: 4151, positive conditional: 197, positive unconditional: 3954, negative: 45, negative conditional: 3, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4196, positive: 4151, positive conditional: 197, positive unconditional: 3954, negative: 45, negative conditional: 3, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2482, positive: 2464, positive conditional: 3, positive unconditional: 2461, negative: 18, negative conditional: 1, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2482, positive: 2452, positive conditional: 0, positive unconditional: 2452, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 12, positive conditional: 3, positive unconditional: 9, negative: 18, negative conditional: 1, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 86, positive conditional: 7, positive unconditional: 79, negative: 41, negative conditional: 1, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4196, positive: 1687, positive conditional: 194, positive unconditional: 1493, negative: 27, negative conditional: 2, negative unconditional: 25, unknown: 2482, unknown conditional: 4, unknown unconditional: 2478] , Statistics on independence cache: Total cache size (in pairs): 2482, Positive cache size: 2464, Positive conditional cache size: 3, Positive unconditional cache size: 2461, Negative cache size: 18, Negative conditional cache size: 1, Negative unconditional cache size: 17, Eliminated conditions: 665, Maximal queried relation: 2, Independence queries for same thread: 356 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 203, Number of trivial persistent sets: 161, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3256, positive: 3242, positive conditional: 0, positive unconditional: 3242, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4535, positive: 4151, positive conditional: 909, positive unconditional: 3242, negative: 384, negative conditional: 370, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4179, positive: 4151, positive conditional: 909, positive unconditional: 3242, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4179, positive: 4151, positive conditional: 909, positive unconditional: 3242, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4196, positive: 4151, positive conditional: 848, positive unconditional: 3303, negative: 45, negative conditional: 17, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4196, positive: 4151, positive conditional: 197, positive unconditional: 3954, negative: 45, negative conditional: 3, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4196, positive: 4151, positive conditional: 197, positive unconditional: 3954, negative: 45, negative conditional: 3, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2482, positive: 2464, positive conditional: 3, positive unconditional: 2461, negative: 18, negative conditional: 1, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2482, positive: 2452, positive conditional: 0, positive unconditional: 2452, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 12, positive conditional: 3, positive unconditional: 9, negative: 18, negative conditional: 1, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 86, positive conditional: 7, positive unconditional: 79, negative: 41, negative conditional: 1, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4196, positive: 1687, positive conditional: 194, positive unconditional: 1493, negative: 27, negative conditional: 2, negative unconditional: 25, unknown: 2482, unknown conditional: 4, unknown unconditional: 2478] , Statistics on independence cache: Total cache size (in pairs): 2482, Positive cache size: 2464, Positive conditional cache size: 3, Positive unconditional cache size: 2461, Negative cache size: 18, Negative conditional cache size: 1, Negative unconditional cache size: 17, Eliminated conditions: 665, Maximal queried relation: 2, Independence queries for same thread: 356 - 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: 726]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int mutex; VAL [mutex=0] [L690] 0 int res; VAL [mutex=0, res=0] [L732] 0 pthread_t t; VAL [mutex=0, res=0, t={3:0}] [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, mutex=0, pthread_create(&t, 0, thr1, 0)=-2, res=0, t={3:0}] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L734] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0, t={3:0}] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L736] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [arg={0:0}, arg={0:0}, mutex=0, pthread_create(&t, 0, thr2, 0)=-1, res=0, t={3:0}] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L712] 2 FuncType pf; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=0, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L734] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0, t={3:0}] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L713] COND TRUE 2 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=0, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L714] 2 pf = f1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=0, pf={-1:0}, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L717] CALL 2 __VERIFIER_atomic_acquire() [L693] EXPR 2 mutex==0 [L693] CALL 2 assume_abort_if_not(mutex==0) [L3] COND FALSE 2 !(!cond) [L693] RET 2 assume_abort_if_not(mutex==0) [L694] 2 mutex = 1 [L717] RET 2 __VERIFIER_atomic_acquire() [L736] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [arg={0:0}, arg={0:0}, mutex=1, pthread_create(&t, 0, thr2, 0)=0, res=0, t={3:0}] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L718] CALL, EXPR 2 pf(4,3) [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L704] 2 return a+b+1; VAL [\old(a)=4, \old(b)=3, \result=8, a=4, arg={0:0}, arg={0:0}, b=3, mutex=1, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L718] RET, EXPR 2 pf(4,3) [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L726] EXPR 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=0] [L718] 2 res = pf(4,3) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=1, pf={-1:0}, pf(4,3)=8, res=8] [L726] COND FALSE 1 !(!(res < 10)) VAL [arg={0:0}, arg={0:0}, mutex=1, res=8] [L724] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, mutex=1, res=8] [L726] 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=8] [L718] 2 res = pf(4,3) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=1, pf={-1:0}, pf(4,3)=8, res=8, res = pf(4,3)=49] [L726] 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=8] Now there is a data race on ~res~0 between C: res = pf(4,3) [718] and C: res < 10 [726] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 178 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, 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: 12, 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, 0.7s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 2 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 851/860 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: Toolchain returned no result. [2022-04-18 17:24:49,108 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 17:24:49,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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