./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/safe020_rmo.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_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/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_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe020_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/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_c62dc90e-0775-404a-825e-12d2661a67a3/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 d52a8576f41904f21a1a217cd81ed2d36ac8928d5a02d745a0c93a101e2535cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:38,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:38,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:17:38,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:38,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:38,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:38,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:38,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:38,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:38,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:38,535 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:38,535 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:38,536 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:38,538 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:38,538 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:38,539 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:38,539 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:38,539 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:38,540 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:38,540 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:38,541 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:38,544 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:38,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:38,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:38,546 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:38,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:38,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:38,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:38,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:38,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:38,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:38,550 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:17:38,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:17:38,550 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:38,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:38,550 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:38,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:38,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:38,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:38,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:38,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:38,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:38,552 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:38,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:38,553 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:38,553 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:38,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:38,554 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_c62dc90e-0775-404a-825e-12d2661a67a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52a8576f41904f21a1a217cd81ed2d36ac8928d5a02d745a0c93a101e2535cf [2023-11-19 05:17:38,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:38,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:38,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:38,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:38,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:38,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe020_rmo.i [2023-11-19 05:17:42,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:42,385 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:42,386 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/sv-benchmarks/c/pthread-wmm/safe020_rmo.i [2023-11-19 05:17:42,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/data/a278c3359/b1c98443b94f46dda3707d21ed531121/FLAGba23a7b34 [2023-11-19 05:17:42,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/data/a278c3359/b1c98443b94f46dda3707d21ed531121 [2023-11-19 05:17:42,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:42,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:42,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:42,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:42,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:42,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557bc943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:42, skipping insertion in model container [2023-11-19 05:17:42,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:42" (1/1) ... [2023-11-19 05:17:42,500 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:43,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:43,152 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:43,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:43,347 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:43,348 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:17:43,354 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:43,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43 WrapperNode [2023-11-19 05:17:43,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:43,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:43,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:43,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:43,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,474 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 317 [2023-11-19 05:17:43,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:43,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:43,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:43,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:43,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:43,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:43,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:43,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:43,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:43" (1/1) ... [2023-11-19 05:17:43,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:43,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:43,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:43,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62dc90e-0775-404a-825e-12d2661a67a3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:17:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:17:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 05:17:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 05:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 05:17:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 05:17:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 05:17:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 05:17:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:17:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:43,749 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 05:17:44,110 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:44,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:46,734 INFO L277 CfgBuilder]: Performing block encoding