./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ --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 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:41,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:41,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:17:41,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:41,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:41,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:41,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:41,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:41,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:41,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:41,435 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:41,436 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:41,437 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:41,438 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:41,438 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:41,439 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:41,440 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:41,441 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:41,441 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:41,442 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:41,443 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:41,444 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:41,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:41,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:41,446 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:41,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:41,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:41,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:41,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:41,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:41,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:41,452 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:17:41,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:17:41,453 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:41,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:41,454 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:41,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:41,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:41,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:41,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:41,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:41,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:41,459 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:41,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:41,460 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:41,460 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:41,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:41,461 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_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e [2023-11-19 05:17:41,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:41,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:41,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:41,837 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:41,838 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:41,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2023-11-19 05:17:45,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:45,728 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:45,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2023-11-19 05:17:45,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/data/af9fdb4c0/09bfd884e0b34854b78cab1e40ee9365/FLAGa0a87a3c5 [2023-11-19 05:17:45,768 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/data/af9fdb4c0/09bfd884e0b34854b78cab1e40ee9365 [2023-11-19 05:17:45,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:45,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:45,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:45,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:45,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:45,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:45" (1/1) ... [2023-11-19 05:17:45,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba36722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:45, skipping insertion in model container [2023-11-19 05:17:45,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:45" (1/1) ... [2023-11-19 05:17:45,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:46,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:46,533 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:46,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:46,821 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:46,822 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:46,832 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:46,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46 WrapperNode [2023-11-19 05:17:46,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:46,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:46,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:46,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:46,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:46,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:46,981 INFO L138 Inliner]: procedures = 177, calls = 86, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 812 [2023-11-19 05:17:46,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:46,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:46,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:46,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:46,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:46,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:47,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:47,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:47,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:47,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:46" (1/1) ... [2023-11-19 05:17:47,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:47,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:47,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:47,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98212a-9708-4fb1-a4df-4218612bac83/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:17:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:17:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:17:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:17:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:17:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 05:17:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 05:17:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 05:17:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 05:17:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 05:17:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 05:17:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 05:17:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 05:17:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:17:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:47,275 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:17:47,599 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:47,601 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:50,099 INFO L277 CfgBuilder]: Performing block encoding