./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:08:13,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:08:13,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:08:13,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:08:13,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:08:13,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:08:13,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:08:13,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:08:13,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:08:13,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:08:13,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:08:13,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:08:13,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:08:13,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:08:13,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:08:13,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:08:13,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:08:13,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:08:13,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:08:13,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:08:13,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:08:13,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:08:13,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:08:13,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:08:13,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:08:13,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:08:13,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:08:13,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:08:13,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:08:13,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:08:13,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:08:13,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:08:13,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:08:13,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:08:13,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:08:13,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:08:13,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:08:13,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:08:13,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:08:13,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:08:13,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:08:13,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-07 08:08:13,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:08:13,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:08:13,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:08:13,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:08:13,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:08:13,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:08:13,552 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:08:13,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:08:13,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:08:13,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:08:13,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:08:13,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:08:13,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:08:13,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:08:13,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:08:13,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:08:13,555 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-07 08:08:13,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:08:13,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:08:13,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:08:13,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:08:13,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:08:13,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:08:13,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:08:13,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:08:13,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:08:13,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:08:13,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:08:13,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:08:13,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:08:13,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:08:13,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:08:13,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:08:13,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:08:13,561 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1abd6fb835489bc29b4b3171e6e4732aae8910bae019e148dd431ac2077bb570 [2021-11-07 08:08:13,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:08:13,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:08:13,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:08:13,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:08:13,865 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:08:13,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i [2021-11-07 08:08:13,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/data/4ae28cc61/945d1a2cbfb14b5f8605855c910bd87b/FLAG1512263c7 [2021-11-07 08:08:14,520 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:08:14,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/sv-benchmarks/c/goblint-regression/04-mutex_50-funptr_rc.i [2021-11-07 08:08:14,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/data/4ae28cc61/945d1a2cbfb14b5f8605855c910bd87b/FLAG1512263c7 [2021-11-07 08:08:14,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/data/4ae28cc61/945d1a2cbfb14b5f8605855c910bd87b [2021-11-07 08:08:14,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:08:14,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:08:14,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:08:14,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:08:14,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:08:14,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:08:14" (1/1) ... [2021-11-07 08:08:14,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2de34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:14, skipping insertion in model container [2021-11-07 08:08:14,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:08:14" (1/1) ... [2021-11-07 08:08:14,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:08:14,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:08:15,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:08:15,392 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:08:15,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:08:15,501 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:08:15,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15 WrapperNode [2021-11-07 08:08:15,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:08:15,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:08:15,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:08:15,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:08:15,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:08:15,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:08:15,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:08:15,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:08:15,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:08:15,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:08:15,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:08:15,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:08:15,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (1/1) ... [2021-11-07 08:08:15,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:08:15,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:08:15,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:08:15,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:08:15,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:08:15,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:08:15,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:08:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:08:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-07 08:08:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-07 08:08:15,711 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-07 08:08:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:08:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:08:15,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:08:15,714 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 08:08:16,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:08:16,215 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 08:08:16,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:08:16 BoogieIcfgContainer [2021-11-07 08:08:16,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:08:16,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:08:16,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:08:16,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:08:16,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:08:14" (1/3) ... [2021-11-07 08:08:16,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a845676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:08:16, skipping insertion in model container [2021-11-07 08:08:16,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:08:15" (2/3) ... [2021-11-07 08:08:16,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a845676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:08:16, skipping insertion in model container [2021-11-07 08:08:16,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:08:16" (3/3) ... [2021-11-07 08:08:16,228 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_50-funptr_rc.i [2021-11-07 08:08:16,234 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 08:08:16,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:08:16,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 08:08:16,235 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 08:08:16,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,264 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,264 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,265 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,265 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,276 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,276 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:08:16,284 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-07 08:08:16,340 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:08:16,347 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:08:16,347 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 08:08:16,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 168 flow [2021-11-07 08:08:16,407 INFO L129 PetriNetUnfolder]: 1/79 cut-off events. [2021-11-07 08:08:16,408 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-07 08:08:16,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 1/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2021-11-07 08:08:16,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 80 transitions, 168 flow [2021-11-07 08:08:16,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 72 transitions, 147 flow [2021-11-07 08:08:16,454 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-11-07 08:08:16,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:08:16,455 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:08:16,456 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:08:16,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 08:08:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1206409326, now seen corresponding path program 1 times [2021-11-07 08:08:16,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:16,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798279372] [2021-11-07 08:08:16,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:16,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:16,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:16,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798279372] [2021-11-07 08:08:16,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798279372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:16,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:16,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:08:16,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253684613] [2021-11-07 08:08:16,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:08:16,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:16,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:08:16,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:16,775 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 80 [2021-11-07 08:08:16,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2021-11-07 08:08:16,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:08:16,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 80 [2021-11-07 08:08:16,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:08:16,883 INFO L129 PetriNetUnfolder]: 13/193 cut-off events. [2021-11-07 08:08:16,884 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:08:16,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 193 events. 13/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 635 event pairs, 2 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 199. Up to 15 conditions per place. [2021-11-07 08:08:16,889 INFO L132 encePairwiseOnDemand]: 76/80 looper letters, 7 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2021-11-07 08:08:16,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 76 transitions, 175 flow [2021-11-07 08:08:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:08:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 08:08:16,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2021-11-07 08:08:16,903 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9708333333333333 [2021-11-07 08:08:16,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2021-11-07 08:08:16,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2021-11-07 08:08:16,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:08:16,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2021-11-07 08:08:16,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2021-11-07 08:08:16,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-11-07 08:08:16,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-11-07 08:08:16,929 INFO L186 Difference]: Start difference. First operand has 75 places, 72 transitions, 147 flow. Second operand 3 states and 233 transitions. [2021-11-07 08:08:16,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 76 transitions, 175 flow [2021-11-07 08:08:16,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-07 08:08:16,946 INFO L242 Difference]: Finished difference. Result has 78 places, 74 transitions, 168 flow [2021-11-07 08:08:16,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2021-11-07 08:08:16,955 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2021-11-07 08:08:16,956 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 168 flow [2021-11-07 08:08:16,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2021-11-07 08:08:16,956 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:08:16,957 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:08:16,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:08:16,959 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 08:08:16,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:16,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2036298482, now seen corresponding path program 1 times [2021-11-07 08:08:16,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:16,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69935111] [2021-11-07 08:08:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:16,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:17,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:17,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69935111] [2021-11-07 08:08:17,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69935111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:17,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:17,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:08:17,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780024568] [2021-11-07 08:08:17,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:08:17,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:17,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:08:17,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:17,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 80 [2021-11-07 08:08:17,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-11-07 08:08:17,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:08:17,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 80 [2021-11-07 08:08:17,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:08:17,269 INFO L129 PetriNetUnfolder]: 20/294 cut-off events. [2021-11-07 08:08:17,269 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-11-07 08:08:17,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 294 events. 20/294 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1353 event pairs, 5 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 343. Up to 28 conditions per place. [2021-11-07 08:08:17,277 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 12 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2021-11-07 08:08:17,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 80 transitions, 226 flow [2021-11-07 08:08:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:08:17,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 08:08:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2021-11-07 08:08:17,285 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.95 [2021-11-07 08:08:17,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2021-11-07 08:08:17,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2021-11-07 08:08:17,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:08:17,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2021-11-07 08:08:17,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2021-11-07 08:08:17,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-11-07 08:08:17,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-11-07 08:08:17,294 INFO L186 Difference]: Start difference. First operand has 78 places, 74 transitions, 168 flow. Second operand 3 states and 228 transitions. [2021-11-07 08:08:17,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 80 transitions, 226 flow [2021-11-07 08:08:17,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 80 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 08:08:17,301 INFO L242 Difference]: Finished difference. Result has 80 places, 77 transitions, 198 flow [2021-11-07 08:08:17,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2021-11-07 08:08:17,303 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 5 predicate places. [2021-11-07 08:08:17,303 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 198 flow [2021-11-07 08:08:17,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-11-07 08:08:17,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:08:17,304 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:08:17,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:08:17,304 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-11-07 08:08:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash 23288783, now seen corresponding path program 1 times [2021-11-07 08:08:17,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:17,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575886871] [2021-11-07 08:08:17,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:17,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:08:17,380 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:08:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:08:17,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:08:17,432 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 08:08:17,433 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 08:08:17,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-07 08:08:17,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 08:08:17,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 08:08:17,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-07 08:08:17,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:08:17,439 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 08:08:17,449 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 08:08:17,450 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:08:17,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:08:17 BasicIcfg [2021-11-07 08:08:17,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:08:17,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:08:17,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:08:17,515 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:08:17,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:08:16" (3/4) ... [2021-11-07 08:08:17,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:08:17,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:08:17,524 INFO L168 Benchmark]: Toolchain (without parser) took 2729.15 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 89.9 MB in the beginning and 68.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:08:17,525 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 119.5 MB. Free memory is still 74.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:08:17,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.21 ms. Allocated memory is still 119.5 MB. Free memory was 89.9 MB in the beginning and 77.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:08:17,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.08 ms. Allocated memory is still 119.5 MB. Free memory was 77.6 MB in the beginning and 75.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:08:17,535 INFO L168 Benchmark]: Boogie Preprocessor took 30.17 ms. Allocated memory is still 119.5 MB. Free memory was 75.2 MB in the beginning and 74.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:08:17,535 INFO L168 Benchmark]: RCFGBuilder took 627.94 ms. Allocated memory is still 119.5 MB. Free memory was 73.7 MB in the beginning and 61.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:08:17,537 INFO L168 Benchmark]: TraceAbstraction took 1293.82 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 61.1 MB in the beginning and 68.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-11-07 08:08:17,537 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 144.7 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:08:17,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 119.5 MB. Free memory is still 74.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 701.21 ms. Allocated memory is still 119.5 MB. Free memory was 89.9 MB in the beginning and 77.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.08 ms. Allocated memory is still 119.5 MB. Free memory was 77.6 MB in the beginning and 75.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.17 ms. Allocated memory is still 119.5 MB. Free memory was 75.2 MB in the beginning and 74.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 627.94 ms. Allocated memory is still 119.5 MB. Free memory was 73.7 MB in the beginning and 61.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1293.82 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 61.1 MB in the beginning and 68.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.36 ms. Allocated memory is still 144.7 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 932]: Data race detected Data race detected The following path leads to a data race: [L919] 0 int (*fp)() = f1; VAL [={-1:0}] [L920] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [={-1:0}, mutex1={3:0}] [L921] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [={-1:0}, mutex1={3:0}, mutex2={5:0}] [L929] 0 pthread_t id; VAL [={-1:0}, mutex1={3:0}, mutex2={5:0}] [L930] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}] [L924] 1 fp = f2 VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={3:0}, mutex2={5:0}] [L932] 0 fp() VAL [={-1:1}, arg={0:0}, arg={0:0}, fp = f2=25, mutex1={3:0}, mutex2={5:0}] Now there is a data race on ~fp~0 between C: fp = f2 [924] and C: fp() [932] - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-11-07 08:08:17,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_270f2014-80c4-486a-90f0-b588ac7f9fe8/bin/uautomizer-AkOaLMaTGY/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