./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa --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 81960e880aaa6f71673e64a755149f585c3b22c34964928097fd9d26ae710e5b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:30:15,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:30:15,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:30:15,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:30:15,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:30:15,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:30:15,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:30:15,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:30:15,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:30:15,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:30:15,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:30:15,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:30:15,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:30:15,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:30:15,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:30:15,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:30:15,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:30:15,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:30:15,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:30:15,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:30:15,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:30:15,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:30:15,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:30:15,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:30:15,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:30:15,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:30:15,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:30:15,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:30:15,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:30:15,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:30:15,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:30:15,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:30:15,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:30:15,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:30:15,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:30:15,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:30:15,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:30:15,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:30:15,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:30:15,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:30:15,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:30:15,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 20:30:15,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:30:15,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:30:15,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:30:15,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:30:15,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:30:15,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:30:15,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:30:15,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:30:15,920 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:30:15,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:30:15,920 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:30:15,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:30:15,922 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 20:30:15,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:30:15,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:30:15,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:30:15,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:30:15,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:30:15,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:30:15,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:30:15,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:30:15,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:30:15,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:30:15,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:30:15,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:30:15,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:30:15,924 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:30:15,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:30:15,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:30:15,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:30:15,924 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_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81960e880aaa6f71673e64a755149f585c3b22c34964928097fd9d26ae710e5b [2021-12-06 20:30:16,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:30:16,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:30:16,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:30:16,138 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:30:16,139 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:30:16,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i [2021-12-06 20:30:16,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/data/446dc5b0b/248467bf928542ff8f3a1f3c876a1034/FLAG6fc0e3092 [2021-12-06 20:30:16,587 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:30:16,588 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/sv-benchmarks/c/goblint-regression/04-mutex_03-munge_rc.i [2021-12-06 20:30:16,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/data/446dc5b0b/248467bf928542ff8f3a1f3c876a1034/FLAG6fc0e3092 [2021-12-06 20:30:16,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/data/446dc5b0b/248467bf928542ff8f3a1f3c876a1034 [2021-12-06 20:30:16,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:30:16,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:30:16,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:30:16,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:30:16,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:30:16,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:16,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e7ec04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16, skipping insertion in model container [2021-12-06 20:30:16,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:16,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:30:16,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:30:16,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:30:16,893 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:30:16,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:30:16,963 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:30:16,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16 WrapperNode [2021-12-06 20:30:16,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:30:16,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:30:16,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:30:16,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:30:16,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:16,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,003 INFO L137 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2021-12-06 20:30:17,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:30:17,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:30:17,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:30:17,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:30:17,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:30:17,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:30:17,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:30:17,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:30:17,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (1/1) ... [2021-12-06 20:30:17,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:30:17,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:30:17,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:30:17,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:30:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 20:30:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:30:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:30:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:30:17,088 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 20:30:17,167 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:30:17,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:30:17,291 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:30:17,297 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:30:17,297 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:30:17,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:30:17 BoogieIcfgContainer [2021-12-06 20:30:17,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:30:17,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:30:17,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:30:17,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:30:17,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:30:16" (1/3) ... [2021-12-06 20:30:17,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c44e232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:30:17, skipping insertion in model container [2021-12-06 20:30:17,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:30:16" (2/3) ... [2021-12-06 20:30:17,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c44e232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:30:17, skipping insertion in model container [2021-12-06 20:30:17,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:30:17" (3/3) ... [2021-12-06 20:30:17,304 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_03-munge_rc.i [2021-12-06 20:30:17,310 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 20:30:17,310 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:30:17,310 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-12-06 20:30:17,310 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 20:30:17,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,335 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,336 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,340 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,340 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,340 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:30:17,353 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 20:30:17,389 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:30:17,394 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 [2021-12-06 20:30:17,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 20:30:17,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 174 flow [2021-12-06 20:30:17,434 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-12-06 20:30:17,434 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:30:17,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-12-06 20:30:17,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 174 flow [2021-12-06 20:30:17,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 74 transitions, 151 flow [2021-12-06 20:30:17,448 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-12-06 20:30:17,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:30:17,449 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:30:17,449 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, 1, 1] [2021-12-06 20:30:17,450 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 20:30:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1728653489, now seen corresponding path program 1 times [2021-12-06 20:30:17,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:30:17,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492239762] [2021-12-06 20:30:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:17,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:30:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:30:17,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:30:17,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492239762] [2021-12-06 20:30:17,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492239762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:30:17,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:30:17,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:30:17,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812957539] [2021-12-06 20:30:17,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:30:17,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:30:17,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:30:17,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:30:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:30:17,684 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 83 [2021-12-06 20:30:17,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:17,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:30:17,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 83 [2021-12-06 20:30:17,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:30:17,773 INFO L129 PetriNetUnfolder]: 37/233 cut-off events. [2021-12-06 20:30:17,773 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:30:17,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 233 events. 37/233 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 926 event pairs, 15 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 295. Up to 54 conditions per place. [2021-12-06 20:30:17,778 INFO L132 encePairwiseOnDemand]: 75/83 looper letters, 17 selfloop transitions, 6 changer transitions 0/84 dead transitions. [2021-12-06 20:30:17,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 84 transitions, 217 flow [2021-12-06 20:30:17,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:30:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:30:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2021-12-06 20:30:17,789 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9317269076305221 [2021-12-06 20:30:17,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2021-12-06 20:30:17,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2021-12-06 20:30:17,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:30:17,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2021-12-06 20:30:17,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-12-06 20:30:17,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-06 20:30:17,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-06 20:30:17,804 INFO L186 Difference]: Start difference. First operand has 78 places, 74 transitions, 151 flow. Second operand 3 states and 232 transitions. [2021-12-06 20:30:17,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 84 transitions, 217 flow [2021-12-06 20:30:17,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 84 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:30:17,814 INFO L242 Difference]: Finished difference. Result has 81 places, 80 transitions, 202 flow [2021-12-06 20:30:17,816 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=81, PETRI_TRANSITIONS=80} [2021-12-06 20:30:17,820 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2021-12-06 20:30:17,820 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 202 flow [2021-12-06 20:30:17,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:17,821 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:30:17,821 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, 1, 1, 1, 1, 1, 1] [2021-12-06 20:30:17,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:30:17,822 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 20:30:17,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:17,823 INFO L85 PathProgramCache]: Analyzing trace with hash -128638924, now seen corresponding path program 1 times [2021-12-06 20:30:17,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:30:17,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015555766] [2021-12-06 20:30:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:17,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:30:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:30:17,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:30:17,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015555766] [2021-12-06 20:30:17,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015555766] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:30:17,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:30:17,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:30:17,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575885668] [2021-12-06 20:30:17,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:30:17,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:30:17,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:30:17,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:30:17,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:30:17,893 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2021-12-06 20:30:17,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:17,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:30:17,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2021-12-06 20:30:17,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:30:17,971 INFO L129 PetriNetUnfolder]: 60/340 cut-off events. [2021-12-06 20:30:17,971 INFO L130 PetriNetUnfolder]: For 94/98 co-relation queries the response was YES. [2021-12-06 20:30:17,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 340 events. 60/340 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1700 event pairs, 28 based on Foata normal form. 2/307 useless extension candidates. Maximal degree in co-relation 551. Up to 113 conditions per place. [2021-12-06 20:30:17,974 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 25 selfloop transitions, 7 changer transitions 0/90 dead transitions. [2021-12-06 20:30:17,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 304 flow [2021-12-06 20:30:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:30:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:30:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2021-12-06 20:30:17,978 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8955823293172691 [2021-12-06 20:30:17,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2021-12-06 20:30:17,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2021-12-06 20:30:17,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:30:17,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2021-12-06 20:30:17,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:17,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-06 20:30:17,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-06 20:30:17,982 INFO L186 Difference]: Start difference. First operand has 81 places, 80 transitions, 202 flow. Second operand 3 states and 223 transitions. [2021-12-06 20:30:17,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 304 flow [2021-12-06 20:30:17,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:30:17,987 INFO L242 Difference]: Finished difference. Result has 83 places, 85 transitions, 246 flow [2021-12-06 20:30:17,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=83, PETRI_TRANSITIONS=85} [2021-12-06 20:30:17,988 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 5 predicate places. [2021-12-06 20:30:17,988 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 85 transitions, 246 flow [2021-12-06 20:30:17,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:17,989 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:30:17,989 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:30:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:30:17,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 20:30:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 585901895, now seen corresponding path program 1 times [2021-12-06 20:30:17,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:30:17,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907311723] [2021-12-06 20:30:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:17,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:30:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:30:18,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:30:18,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907311723] [2021-12-06 20:30:18,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907311723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:30:18,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:30:18,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:30:18,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284619650] [2021-12-06 20:30:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:30:18,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:30:18,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:30:18,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:30:18,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:30:18,035 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2021-12-06 20:30:18,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 85 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:18,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:30:18,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2021-12-06 20:30:18,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:30:18,079 INFO L129 PetriNetUnfolder]: 62/317 cut-off events. [2021-12-06 20:30:18,079 INFO L130 PetriNetUnfolder]: For 143/147 co-relation queries the response was YES. [2021-12-06 20:30:18,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 317 events. 62/317 cut-off events. For 143/147 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1465 event pairs, 21 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 609. Up to 109 conditions per place. [2021-12-06 20:30:18,081 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 28 selfloop transitions, 9 changer transitions 0/96 dead transitions. [2021-12-06 20:30:18,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 96 transitions, 370 flow [2021-12-06 20:30:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:30:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:30:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2021-12-06 20:30:18,084 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8955823293172691 [2021-12-06 20:30:18,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2021-12-06 20:30:18,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2021-12-06 20:30:18,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:30:18,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2021-12-06 20:30:18,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:18,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-06 20:30:18,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-06 20:30:18,086 INFO L186 Difference]: Start difference. First operand has 83 places, 85 transitions, 246 flow. Second operand 3 states and 223 transitions. [2021-12-06 20:30:18,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 96 transitions, 370 flow [2021-12-06 20:30:18,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 96 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:30:18,090 INFO L242 Difference]: Finished difference. Result has 85 places, 90 transitions, 300 flow [2021-12-06 20:30:18,090 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=85, PETRI_TRANSITIONS=90} [2021-12-06 20:30:18,091 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 7 predicate places. [2021-12-06 20:30:18,091 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 300 flow [2021-12-06 20:30:18,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:30:18,091 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:30:18,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:30:18,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:30:18,091 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 20:30:18,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1022873524, now seen corresponding path program 1 times [2021-12-06 20:30:18,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:30:18,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845952424] [2021-12-06 20:30:18,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:18,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:30:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:30:18,114 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:30:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:30:18,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:30:18,145 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:30:18,145 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-12-06 20:30:18,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-12-06 20:30:18,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-12-06 20:30:18,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-12-06 20:30:18,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-12-06 20:30:18,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-12-06 20:30:18,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-12-06 20:30:18,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-12-06 20:30:18,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:30:18,151 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 20:30:18,155 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 20:30:18,155 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:30:18,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:30:18 BasicIcfg [2021-12-06 20:30:18,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:30:18,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:30:18,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:30:18,187 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:30:18,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:30:17" (3/4) ... [2021-12-06 20:30:18,189 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:30:18,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:30:18,190 INFO L158 Benchmark]: Toolchain (without parser) took 1578.31ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 58.8MB in the beginning and 43.7MB in the end (delta: 15.1MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2021-12-06 20:30:18,190 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:30:18,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.83ms. Allocated memory is still 102.8MB. Free memory was 58.7MB in the beginning and 59.3MB in the end (delta: -616.5kB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-12-06 20:30:18,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 102.8MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:30:18,191 INFO L158 Benchmark]: Boogie Preprocessor took 18.28ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 55.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:30:18,192 INFO L158 Benchmark]: RCFGBuilder took 275.75ms. Allocated memory is still 102.8MB. Free memory was 55.4MB in the beginning and 68.4MB in the end (delta: -12.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 20:30:18,192 INFO L158 Benchmark]: TraceAbstraction took 886.41ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 67.8MB in the beginning and 43.7MB in the end (delta: 24.1MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2021-12-06 20:30:18,192 INFO L158 Benchmark]: Witness Printer took 2.41ms. Allocated memory is still 134.2MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:30:18,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.83ms. Allocated memory is still 102.8MB. Free memory was 58.7MB in the beginning and 59.3MB in the end (delta: -616.5kB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.10ms. Allocated memory is still 102.8MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.28ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 55.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.75ms. Allocated memory is still 102.8MB. Free memory was 55.4MB in the beginning and 68.4MB in the end (delta: -12.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 886.41ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 67.8MB in the beginning and 43.7MB in the end (delta: 24.1MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * Witness Printer took 2.41ms. Allocated memory is still 134.2MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 922]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 0 pthread_t id; VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L926] CALL 1 munge(&mutex2) [L922] EXPR 1 myglobal+1 VAL [m={2:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L932] CALL 0 munge(&mutex1) [L922] 0 myglobal+1 VAL [m={2:0}, m={1:0}, m={2:0}, m={1:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [m={2:0}, m={2:0}, m={1:0}, m={1:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L922] 0 myglobal+1 VAL [m={1:0}, m={2:0}, m={2:0}, m={1:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [922] - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: 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, 106 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 42 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 20:30:18,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a9430e-3d66-46ea-aa6a-cdf147bc3644/bin/uautomizer-DrprNOufMa/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