./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX --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 be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:13:12,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:13:12,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:13:12,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:13:12,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:13:12,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:13:12,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:13:12,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:13:12,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:13:12,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:13:12,655 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:13:12,655 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:13:12,656 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:13:12,658 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:13:12,659 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:13:12,659 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:13:12,660 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:13:12,660 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:13:12,661 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:13:12,662 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:13:12,662 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:13:12,663 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:13:12,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:13:12,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:13:12,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:13:12,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:13:12,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:13:12,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:13:12,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:13:12,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:13:12,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:13:12,670 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:13:12,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:13:12,671 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:13:12,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:13:12,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:13:12,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:13:12,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:13:12,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:12,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:13:12,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:13:12,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:13:12,675 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:13:12,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:13:12,676 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:13:12,677 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:13:12,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:13:12,677 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_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2023-11-12 00:13:12,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:13:13,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:13:13,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:13:13,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:13:13,023 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:13:13,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2023-11-12 00:13:16,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:16,638 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:16,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2023-11-12 00:13:16,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/data/4b6fccd20/aa23423026b443ae954a5cdaf00fdd95/FLAG6699bf73b [2023-11-12 00:13:16,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/data/4b6fccd20/aa23423026b443ae954a5cdaf00fdd95 [2023-11-12 00:13:16,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:16,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:16,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:16,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:16,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:16,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:16" (1/1) ... [2023-11-12 00:13:16,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65dbb494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:16, skipping insertion in model container [2023-11-12 00:13:16,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:16" (1/1) ... [2023-11-12 00:13:16,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:13:17,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:17,286 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:13:17,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:17,399 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:17,399 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:17,408 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:13:17,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17 WrapperNode [2023-11-12 00:13:17,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:17,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:17,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:13:17,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:13:17,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,501 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 541 [2023-11-12 00:13:17,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:17,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:13:17,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:13:17,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:13:17,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:13:17,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:13:17,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:13:17,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:13:17,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:17,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:17,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:13:17,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a233928-323a-46c0-abbe-8a29e8a5eede/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:13:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:13:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:13:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:13:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:13:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:13:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:13:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:13:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:13:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:13:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:13:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:13:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:13:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:13:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:13:17,726 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:13:17,922 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:13:17,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:13:19,245 INFO L277 CfgBuilder]: Performing block encoding