./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fea91513c96246b75c49fa902e51d33d0640cbe9a02143a9b8a08050c0f0b4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:54,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:54,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-02 12:24:54,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:54,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:54,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:54,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:54,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:54,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:54,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:54,853 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:54,854 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:54,855 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:54,855 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:54,858 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:54,858 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:54,859 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:54,859 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:54,859 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:54,860 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:54,860 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:54,862 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:54,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:54,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:54,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:54,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:54,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:54,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:54,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:54,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:54,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:54,868 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-02 12:24:54,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:54,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:24:54,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:54,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:54,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:54,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:54,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:54,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:54,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:54,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:54,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:54,872 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:54,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:54,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:54,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:54,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:54,873 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fea91513c96246b75c49fa902e51d33d0640cbe9a02143a9b8a08050c0f0b4f [2024-11-02 12:24:55,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:55,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:55,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:55,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:55,239 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:55,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i Unable to find full path for "g++" [2024-11-02 12:24:57,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:57,710 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:57,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i [2024-11-02 12:24:57,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/data/4bedbcaed/15a2ebcc7e914aa4a2eaf758501f6a1b/FLAGe7e18d65e [2024-11-02 12:24:57,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/data/4bedbcaed/15a2ebcc7e914aa4a2eaf758501f6a1b [2024-11-02 12:24:57,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:57,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:57,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:57,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:57,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:57,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:57" (1/1) ... [2024-11-02 12:24:57,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73dfa413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:57, skipping insertion in model container [2024-11-02 12:24:57,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:57" (1/1) ... [2024-11-02 12:24:58,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:58,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:58,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:58,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:58,767 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:58,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58 WrapperNode [2024-11-02 12:24:58,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:58,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:58,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:58,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:58,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,854 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-02 12:24:58,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:58,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:58,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:58,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:58,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:58,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:58,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:58,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:58,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (1/1) ... [2024-11-02 12:24:58,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:58,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:58,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:58,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:24:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:24:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:24:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:24:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-02 12:24:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-02 12:24:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:59,047 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:24:59,264 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:59,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:59,716 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:24:59,720 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:59,748 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:59,751 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-02 12:24:59,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:59 BoogieIcfgContainer [2024-11-02 12:24:59,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:59,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:59,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:59,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:59,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:57" (1/3) ... [2024-11-02 12:24:59,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de5b22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:59, skipping insertion in model container [2024-11-02 12:24:59,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:58" (2/3) ... [2024-11-02 12:24:59,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de5b22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:59, skipping insertion in model container [2024-11-02 12:24:59,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:59" (3/3) ... [2024-11-02 12:24:59,765 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init-race.i [2024-11-02 12:24:59,796 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:59,797 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-02 12:24:59,797 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:24:59,869 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-02 12:24:59,932 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 93 transitions, 193 flow [2024-11-02 12:25:00,103 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 710 states, 696 states have (on average 1.9224137931034482) internal successors, (1338), 709 states have internal predecessors, (1338), 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) [2024-11-02 12:25:00,158 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:25:00,165 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69fe7ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:25:00,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-02 12:25:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 710 states, 696 states have (on average 1.9224137931034482) internal successors, (1338), 709 states have internal predecessors, (1338), 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) [2024-11-02 12:25:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-02 12:25:00,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:00,176 INFO L215 NwaCegarLoop]: 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] [2024-11-02 12:25:00,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-02 12:25:00,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:00,183 INFO L85 PathProgramCache]: Analyzing trace with hash -367491366, now seen corresponding path program 1 times [2024-11-02 12:25:00,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:00,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021299428] [2024-11-02 12:25:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:00,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:25:01,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:01,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021299428] [2024-11-02 12:25:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021299428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:01,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:01,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:25:01,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488066903] [2024-11-02 12:25:01,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:01,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:25:01,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:01,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:25:01,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:01,495 INFO L87 Difference]: Start difference. First operand has 710 states, 696 states have (on average 1.9224137931034482) internal successors, (1338), 709 states have internal predecessors, (1338), 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) Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-11-02 12:25:01,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:25:01,926 INFO L93 Difference]: Finished difference Result 1462 states and 2772 transitions. [2024-11-02 12:25:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:25:01,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) Word has length 34 [2024-11-02 12:25:01,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:25:01,960 INFO L225 Difference]: With dead ends: 1462 [2024-11-02 12:25:01,960 INFO L226 Difference]: Without dead ends: 723 [2024-11-02 12:25:01,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:01,979 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 47 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:25:01,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 225 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:25:02,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-02 12:25:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 703. [2024-11-02 12:25:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 692 states have (on average 1.8684971098265897) internal successors, (1293), 702 states have internal predecessors, (1293), 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) [2024-11-02 12:25:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1293 transitions. [2024-11-02 12:25:02,100 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1293 transitions. Word has length 34 [2024-11-02 12:25:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:25:02,100 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 1293 transitions. [2024-11-02 12:25:02,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-11-02 12:25:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1293 transitions. [2024-11-02 12:25:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-02 12:25:02,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:02,102 INFO L215 NwaCegarLoop]: 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] [2024-11-02 12:25:02,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:25:02,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-02 12:25:02,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:02,104 INFO L85 PathProgramCache]: Analyzing trace with hash 986559763, now seen corresponding path program 1 times [2024-11-02 12:25:02,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:02,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484997755] [2024-11-02 12:25:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:02,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:25:02,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:02,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484997755] [2024-11-02 12:25:02,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484997755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:02,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:02,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:25:02,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962967258] [2024-11-02 12:25:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:02,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:25:02,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:02,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:25:02,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:25:02,279 INFO L87 Difference]: Start difference. First operand 703 states and 1293 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-11-02 12:25:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:25:02,441 INFO L93 Difference]: Finished difference Result 711 states and 1300 transitions. [2024-11-02 12:25:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:25:02,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) Word has length 34 [2024-11-02 12:25:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:25:02,447 INFO L225 Difference]: With dead ends: 711 [2024-11-02 12:25:02,448 INFO L226 Difference]: Without dead ends: 701 [2024-11-02 12:25:02,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:02,450 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 38 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:25:02,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 244 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:25:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-02 12:25:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2024-11-02 12:25:02,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 690 states have (on average 1.8695652173913044) internal successors, (1290), 700 states have internal predecessors, (1290), 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) [2024-11-02 12:25:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1290 transitions. [2024-11-02 12:25:02,478 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1290 transitions. Word has length 34 [2024-11-02 12:25:02,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:25:02,478 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 1290 transitions. [2024-11-02 12:25:02,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-11-02 12:25:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1290 transitions. [2024-11-02 12:25:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-02 12:25:02,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:02,480 INFO L215 NwaCegarLoop]: 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] [2024-11-02 12:25:02,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:25:02,481 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-02 12:25:02,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash 744423912, now seen corresponding path program 1 times [2024-11-02 12:25:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:02,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168147483] [2024-11-02 12:25:02,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:02,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:25:03,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:03,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168147483] [2024-11-02 12:25:03,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168147483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:03,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:03,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:25:03,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942061346] [2024-11-02 12:25:03,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:03,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:25:03,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:03,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:25:03,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:03,019 INFO L87 Difference]: Start difference. First operand 701 states and 1290 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) [2024-11-02 12:25:03,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:25:03,311 INFO L93 Difference]: Finished difference Result 1101 states and 2020 transitions. [2024-11-02 12:25:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:25:03,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) Word has length 43 [2024-11-02 12:25:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:25:03,323 INFO L225 Difference]: With dead ends: 1101 [2024-11-02 12:25:03,325 INFO L226 Difference]: Without dead ends: 986 [2024-11-02 12:25:03,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:03,329 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 166 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:25:03,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 372 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:25:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2024-11-02 12:25:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 794. [2024-11-02 12:25:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 783 states have (on average 1.879948914431673) internal successors, (1472), 793 states have internal predecessors, (1472), 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) [2024-11-02 12:25:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1472 transitions. [2024-11-02 12:25:03,364 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1472 transitions. Word has length 43 [2024-11-02 12:25:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:25:03,365 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1472 transitions. [2024-11-02 12:25:03,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) [2024-11-02 12:25:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1472 transitions. [2024-11-02 12:25:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-02 12:25:03,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:03,368 INFO L215 NwaCegarLoop]: 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] [2024-11-02 12:25:03,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:25:03,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-02 12:25:03,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1260636265, now seen corresponding path program 1 times [2024-11-02 12:25:03,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:03,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859187484] [2024-11-02 12:25:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:25:03,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:03,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859187484] [2024-11-02 12:25:03,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859187484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:03,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:03,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:25:03,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119878690] [2024-11-02 12:25:03,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:03,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:25:03,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:03,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:25:03,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:03,781 INFO L87 Difference]: Start difference. First operand 794 states and 1472 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-11-02 12:25:03,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:25:03,987 INFO L93 Difference]: Finished difference Result 860 states and 1594 transitions. [2024-11-02 12:25:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:25:03,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) Word has length 45 [2024-11-02 12:25:03,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:25:03,993 INFO L225 Difference]: With dead ends: 860 [2024-11-02 12:25:03,993 INFO L226 Difference]: Without dead ends: 842 [2024-11-02 12:25:03,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:25:03,998 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 39 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:25:03,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 229 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:25:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-02 12:25:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 829. [2024-11-02 12:25:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 818 states have (on average 1.880195599022005) internal successors, (1538), 828 states have internal predecessors, (1538), 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) [2024-11-02 12:25:04,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1538 transitions. [2024-11-02 12:25:04,027 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1538 transitions. Word has length 45 [2024-11-02 12:25:04,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:25:04,029 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1538 transitions. [2024-11-02 12:25:04,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-11-02 12:25:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1538 transitions. [2024-11-02 12:25:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-02 12:25:04,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:04,033 INFO L215 NwaCegarLoop]: 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] [2024-11-02 12:25:04,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:25:04,033 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-02 12:25:04,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:04,034 INFO L85 PathProgramCache]: Analyzing trace with hash -650511520, now seen corresponding path program 1 times [2024-11-02 12:25:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:04,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095553408] [2024-11-02 12:25:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:25:04,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:25:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:25:04,132 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:25:04,132 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:25:04,133 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-11-02 12:25:04,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-02 12:25:04,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-02 12:25:04,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-02 12:25:04,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-02 12:25:04,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-02 12:25:04,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:25:04,140 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 12:25:04,189 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 12:25:04,190 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:25:04,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:25:04 BasicIcfg [2024-11-02 12:25:04,193 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:25:04,194 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:25:04,194 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:25:04,194 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:25:04,195 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:59" (3/4) ... [2024-11-02 12:25:04,196 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-02 12:25:04,255 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:25:04,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:25:04,258 INFO L158 Benchmark]: Toolchain (without parser) took 6304.11ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 117.3MB in the beginning and 134.3MB in the end (delta: -16.9MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,258 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:25:04,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.43ms. Allocated memory is still 146.8MB. Free memory was 117.3MB in the beginning and 86.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.01ms. Allocated memory is still 146.8MB. Free memory was 86.9MB in the beginning and 84.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,259 INFO L158 Benchmark]: Boogie Preprocessor took 39.69ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 82.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,259 INFO L158 Benchmark]: RCFGBuilder took 856.22ms. Allocated memory is still 146.8MB. Free memory was 82.7MB in the beginning and 100.5MB in the end (delta: -17.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,260 INFO L158 Benchmark]: TraceAbstraction took 4439.46ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 99.3MB in the beginning and 138.4MB in the end (delta: -39.2MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,260 INFO L158 Benchmark]: Witness Printer took 61.88ms. Allocated memory is still 176.2MB. Free memory was 138.4MB in the beginning and 134.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:25:04,264 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.43ms. Allocated memory is still 146.8MB. Free memory was 117.3MB in the beginning and 86.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.01ms. Allocated memory is still 146.8MB. Free memory was 86.9MB in the beginning and 84.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.69ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 82.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 856.22ms. Allocated memory is still 146.8MB. Free memory was 82.7MB in the beginning and 100.5MB in the end (delta: -17.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4439.46ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 99.3MB in the beginning and 138.4MB in the end (delta: -39.2MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. * Witness Printer took 61.88ms. Allocated memory is still 176.2MB. Free memory was 138.4MB in the beginning and 134.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 1021]: Data race detected Data race detected The following path leads to a data race: [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [threads_total=1] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [threads_total=1, tids={-2:0}] [L1028] EXPR, FCALL 0 calloc(threads_total, sizeof(int)) [L1028] 0 int *is = calloc(threads_total, sizeof(int)); VAL [is={-3:0}, threads_total=1, tids={-2:0}] [L1029] 0 int i = 0; VAL [i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1029] COND TRUE 0 i < threads_total VAL [i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1030] 0 pthread_create(&tids[i], ((void *)0), &thread, &is[i]) VAL [i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1030] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, &is[i]) VAL [\old(arg)={-3:0}, i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1020] 1 int *p = arg; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1021] EXPR 1 \read(*p) VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1021] 1 int i = *p; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1021] 1 int i = *p; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1031] 0 is[i] = i VAL [\old(arg)={-3:0}, arg={-3:0}, i=0, is={-3:0}, p={-3:0}, threads_total=1, tids={-2:0}] [L1021] 1 int i = *p; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: is[i] = i [1031] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] and C: int i = *p; [1021] - UnprovableResult [Line: 1030]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1034]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1030]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 104 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 290 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 290 mSDsluCounter, 1070 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 591 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 562 IncrementalHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 479 mSDtfsCounter, 562 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=829occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 225 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-02 12:25:04,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf49e23-21ac-4e83-8a6c-241c64d2365c/bin/utaipan-verify-DbMuA5NWw2/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