./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje --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 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:08:36,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:08:36,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 06:08:36,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:08:36,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:08:36,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:08:36,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:08:36,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:08:36,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:08:36,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:08:36,921 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:08:36,922 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:08:36,923 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:08:36,926 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:08:36,927 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:08:36,928 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:08:36,928 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:08:36,928 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:08:36,929 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:08:36,929 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:08:36,930 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:08:36,935 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:08:36,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:08:36,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:08:36,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:08:36,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:08:36,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:08:36,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:08:36,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:08:36,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:08:36,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:08:36,942 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:08:36,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:08:36,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:08:36,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:08:36,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:08:36,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:08:36,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:08:36,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:08:36,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:08:36,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:08:36,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:08:36,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:08:36,949 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:08:36,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:08:36,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:08:36,949 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:08:36,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:08:36,950 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_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2024-11-09 06:08:37,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:08:37,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:08:37,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:08:37,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:08:37,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:08:37,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i Unable to find full path for "g++" [2024-11-09 06:08:39,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:08:39,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:08:39,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2024-11-09 06:08:39,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/data/b7e17df33/690b89ac293d4aa288f73b1b290a5e64/FLAGd1fa35a4a [2024-11-09 06:08:39,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/data/b7e17df33/690b89ac293d4aa288f73b1b290a5e64 [2024-11-09 06:08:39,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:08:39,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:08:39,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:08:39,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:08:40,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:08:40,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:08:39" (1/1) ... [2024-11-09 06:08:40,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd6678d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40, skipping insertion in model container [2024-11-09 06:08:40,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:08:39" (1/1) ... [2024-11-09 06:08:40,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:08:40,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:08:40,670 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:08:40,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:08:40,798 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:08:40,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40 WrapperNode [2024-11-09 06:08:40,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:08:40,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:08:40,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:08:40,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:08:40,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,899 INFO L138 Inliner]: procedures = 168, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 170 [2024-11-09 06:08:40,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:08:40,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:08:40,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:08:40,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:08:40,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:08:40,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:08:40,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:08:40,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:08:40,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (1/1) ... [2024-11-09 06:08:40,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:08:40,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:41,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:08:41,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:08:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:08:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:08:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:08:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-09 06:08:41,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-09 06:08:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:08:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:08:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:08:41,060 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:08:41,272 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:08:41,274 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:08:41,650 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:08:41,650 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:08:41,699 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:08:41,700 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:08:41,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:08:41 BoogieIcfgContainer [2024-11-09 06:08:41,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:08:41,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:08:41,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:08:41,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:08:41,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:08:39" (1/3) ... [2024-11-09 06:08:41,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9010a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:08:41, skipping insertion in model container [2024-11-09 06:08:41,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:40" (2/3) ... [2024-11-09 06:08:41,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9010a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:08:41, skipping insertion in model container [2024-11-09 06:08:41,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:08:41" (3/3) ... [2024-11-09 06:08:41,729 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2024-11-09 06:08:41,759 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:08:41,759 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:08:41,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:08:41,865 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:08:41,934 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 178 places, 178 transitions, 363 flow [2024-11-09 06:08:42,017 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 416 states, 413 states have (on average 1.7360774818401936) internal successors, (717), 415 states have internal predecessors, (717), 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) [2024-11-09 06:08:42,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:08:42,079 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;@74eecb0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:08:42,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 06:08:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 416 states, 413 states have (on average 1.7360774818401936) internal successors, (717), 415 states have internal predecessors, (717), 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) [2024-11-09 06:08:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 06:08:42,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:42,111 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, 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, 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] [2024-11-09 06:08:42,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-09 06:08:42,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash 184558475, now seen corresponding path program 1 times [2024-11-09 06:08:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:42,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112249320] [2024-11-09 06:08:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:42,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:42,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112249320] [2024-11-09 06:08:42,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112249320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:42,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:42,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:42,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285111719] [2024-11-09 06:08:42,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:42,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:42,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:42,850 INFO L87 Difference]: Start difference. First operand has 416 states, 413 states have (on average 1.7360774818401936) internal successors, (717), 415 states have internal predecessors, (717), 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 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-11-09 06:08:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:42,965 INFO L93 Difference]: Finished difference Result 595 states and 1072 transitions. [2024-11-09 06:08:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:42,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 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 145 [2024-11-09 06:08:42,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:42,990 INFO L225 Difference]: With dead ends: 595 [2024-11-09 06:08:42,990 INFO L226 Difference]: Without dead ends: 484 [2024-11-09 06:08:42,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:43,004 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 24 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:43,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 337 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:08:43,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-09 06:08:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 394. [2024-11-09 06:08:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 390 states have (on average 1.6384615384615384) internal successors, (639), 393 states have internal predecessors, (639), 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) [2024-11-09 06:08:43,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 639 transitions. [2024-11-09 06:08:43,112 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 639 transitions. Word has length 145 [2024-11-09 06:08:43,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:43,113 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 639 transitions. [2024-11-09 06:08:43,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-11-09 06:08:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 639 transitions. [2024-11-09 06:08:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 06:08:43,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:43,118 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, 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, 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] [2024-11-09 06:08:43,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:08:43,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-09 06:08:43,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2111354705, now seen corresponding path program 1 times [2024-11-09 06:08:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:43,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825719755] [2024-11-09 06:08:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:43,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:43,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:43,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825719755] [2024-11-09 06:08:43,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825719755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:43,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:43,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:43,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073280900] [2024-11-09 06:08:43,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:43,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:43,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:43,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:43,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:43,398 INFO L87 Difference]: Start difference. First operand 394 states and 639 transitions. Second operand has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-11-09 06:08:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:43,492 INFO L93 Difference]: Finished difference Result 515 states and 871 transitions. [2024-11-09 06:08:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:43,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 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 145 [2024-11-09 06:08:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:43,497 INFO L225 Difference]: With dead ends: 515 [2024-11-09 06:08:43,497 INFO L226 Difference]: Without dead ends: 324 [2024-11-09 06:08:43,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:43,500 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 27 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:43,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 333 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:08:43,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-09 06:08:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 285. [2024-11-09 06:08:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 282 states have (on average 1.429078014184397) internal successors, (403), 284 states have internal predecessors, (403), 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) [2024-11-09 06:08:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 403 transitions. [2024-11-09 06:08:43,523 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 403 transitions. Word has length 145 [2024-11-09 06:08:43,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:43,524 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 403 transitions. [2024-11-09 06:08:43,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 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) [2024-11-09 06:08:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 403 transitions. [2024-11-09 06:08:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 06:08:43,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:43,528 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, 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, 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, 1, 1, 1, 1] [2024-11-09 06:08:43,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:08:43,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-09 06:08:43,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:43,530 INFO L85 PathProgramCache]: Analyzing trace with hash -753401534, now seen corresponding path program 1 times [2024-11-09 06:08:43,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:43,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663647533] [2024-11-09 06:08:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:43,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:08:43,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:08:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:08:43,803 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:08:43,804 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:08:43,805 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-11-09 06:08:43,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2024-11-09 06:08:43,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 06:08:43,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-11-09 06:08:43,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:08:43,817 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 06:08:43,952 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 06:08:43,952 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:08:43,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:08:43 BasicIcfg [2024-11-09 06:08:43,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:08:43,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:08:43,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:08:43,958 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:08:43,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:08:41" (3/4) ... [2024-11-09 06:08:43,964 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 06:08:44,110 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:08:44,110 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:08:44,111 INFO L158 Benchmark]: Toolchain (without parser) took 4120.70ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 90.0MB in the beginning and 123.3MB in the end (delta: -33.3MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,113 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:08:44,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 808.34ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 66.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.08ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 66.6MB in the beginning and 136.6MB in the end (delta: -70.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,114 INFO L158 Benchmark]: Boogie Preprocessor took 55.24ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 137.1MB in the end (delta: -507.8kB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,115 INFO L158 Benchmark]: RCFGBuilder took 744.46ms. Allocated memory is still 167.8MB. Free memory was 137.1MB in the beginning and 118.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,116 INFO L158 Benchmark]: TraceAbstraction took 2243.82ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 64.2MB in the end (delta: 53.0MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,116 INFO L158 Benchmark]: Witness Printer took 153.07ms. Allocated memory is still 167.8MB. Free memory was 64.2MB in the beginning and 123.3MB in the end (delta: -59.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-11-09 06:08:44,121 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 808.34ms. Allocated memory is still 130.0MB. Free memory was 89.6MB in the beginning and 66.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.08ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 66.6MB in the beginning and 136.6MB in the end (delta: -70.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.24ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 137.1MB in the end (delta: -507.8kB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * RCFGBuilder took 744.46ms. Allocated memory is still 167.8MB. Free memory was 137.1MB in the beginning and 118.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2243.82ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 64.2MB in the end (delta: 53.0MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Witness Printer took 153.07ms. Allocated memory is still 167.8MB. Free memory was 64.2MB in the beginning and 123.3MB in the end (delta: -59.2MB). Peak memory consumption was 11.1MB. 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: 704]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [lock={3:0}] [L699] 0 int x; VAL [lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [lock={3:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [lock={3:0}, t=-1, x=0] [L704] 1 x == 42 VAL [\old(arg)={0:0}, arg={0:0}, lock={3:0}, x=0] [L713] 0 int i = 0; VAL [i=0, lock={3:0}, t=-1, x=0] [L713] COND FALSE 0 !(i <= 42) VAL [i=0, lock={3:0}, t=-1, x=0] [L713] COND TRUE 0 i <= 42 VAL [i=0, lock={3:0}, t=-1, x=0] [L714] 0 x = i VAL [i=0, lock={3:0}, t=-1, x=0] [L704] 1 x == 42 VAL [\old(arg)={0:0}, arg={0:0}, lock={3:0}, x=0] Now there is a data race on ~x~0 between C: x = i [714] and C: x == 42 [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: 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, 196 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 670 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 357 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 129 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 443 NumberOfCodeBlocks, 443 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 06:08:44,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926a2019-d31d-4a4a-8c6f-86334c13f03e/bin/utaipan-verify-YMUCfTKeje/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