./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --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 e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:14:57,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:14:57,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:14:57,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:14:57,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:14:57,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:14:57,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:14:57,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:14:57,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:14:57,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:14:57,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:14:57,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:14:57,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:14:57,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:14:57,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:14:58,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:14:58,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:14:58,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:14:58,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:14:58,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:14:58,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:14:58,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:14:58,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:14:58,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:14:58,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:14:58,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:14:58,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:14:58,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:14:58,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:14:58,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:14:58,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:14:58,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:14:58,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:14:58,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:14:58,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:14:58,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:14:58,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:14:58,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:14:58,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:14:58,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:14:58,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:14:58,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-25 18:14:58,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:14:58,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:14:58,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:14:58,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:14:58,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:14:58,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:14:58,126 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:14:58,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:14:58,126 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:14:58,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:14:58,128 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:14:58,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:14:58,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:14:58,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:14:58,129 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:14:58,129 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:14:58,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:14:58,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:14:58,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:14:58,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:14:58,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 18:14:58,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:14:58,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:14:58,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:14:58,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:14:58,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:14:58,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:14:58,135 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-25 18:14:58,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:14:58,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:14:58,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:14:58,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:14:58,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:14:58,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:14:58,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:14:58,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:14:58,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:14:58,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:14:58,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:14:58,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:14:58,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:14:58,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:14:58,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:14:58,140 INFO L138 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_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 [2021-11-25 18:14:58,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:14:58,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:14:58,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:14:58,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:14:58,544 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:14:58,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2021-11-25 18:14:58,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/data/9f24de623/7f39c2c32720405db66bda4b9428b0a7/FLAGb09b8aa9a [2021-11-25 18:14:59,331 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:14:59,332 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2021-11-25 18:14:59,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/data/9f24de623/7f39c2c32720405db66bda4b9428b0a7/FLAGb09b8aa9a [2021-11-25 18:14:59,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/data/9f24de623/7f39c2c32720405db66bda4b9428b0a7 [2021-11-25 18:14:59,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:14:59,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:14:59,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:14:59,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:14:59,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:14:59,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:14:59" (1/1) ... [2021-11-25 18:14:59,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4108db43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:14:59, skipping insertion in model container [2021-11-25 18:14:59,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:14:59" (1/1) ... [2021-11-25 18:14:59,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:14:59,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:15:00,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:15:00,326 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:15:00,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:15:00,451 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:15:00,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00 WrapperNode [2021-11-25 18:15:00,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:15:00,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:15:00,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:15:00,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:15:00,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,524 INFO L137 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2021-11-25 18:15:00,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:15:00,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:15:00,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:15:00,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:15:00,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:15:00,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:15:00,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:15:00,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:15:00,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (1/1) ... [2021-11-25 18:15:00,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:15:00,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:15:00,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:15:00,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:15:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:15:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:15:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:15:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:15:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 18:15:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:15:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-25 18:15:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-25 18:15:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:15:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:15:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:15:00,719 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 18:15:00,926 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:15:00,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:15:01,188 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:15:01,197 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:15:01,199 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:15:01,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:01 BoogieIcfgContainer [2021-11-25 18:15:01,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:15:01,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:15:01,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:15:01,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:15:01,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:14:59" (1/3) ... [2021-11-25 18:15:01,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8e296f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:01, skipping insertion in model container [2021-11-25 18:15:01,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:00" (2/3) ... [2021-11-25 18:15:01,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8e296f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:01, skipping insertion in model container [2021-11-25 18:15:01,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:01" (3/3) ... [2021-11-25 18:15:01,241 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_01-simple_rc.i [2021-11-25 18:15:01,248 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 18:15:01,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:15:01,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-25 18:15:01,249 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 18:15:01,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,307 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,308 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,308 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,311 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,311 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,316 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,317 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,332 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,332 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,333 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,333 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:15:01,343 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-25 18:15:01,419 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:15:01,442 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:15:01,445 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-25 18:15:01,472 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 18:15:01,491 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 73 transitions, 154 flow [2021-11-25 18:15:01,495 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 73 transitions, 154 flow [2021-11-25 18:15:01,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 154 flow [2021-11-25 18:15:01,580 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-11-25 18:15:01,581 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-25 18:15:01,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 0/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-25 18:15:01,588 INFO L116 LiptonReduction]: Number of co-enabled transitions 630 [2021-11-25 18:15:04,806 INFO L131 LiptonReduction]: Checked pairs total: 2938 [2021-11-25 18:15:04,806 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-11-25 18:15:04,817 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2021-11-25 18:15:04,834 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 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) [2021-11-25 18:15:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 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) [2021-11-25 18:15:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 18:15:04,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:04,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 18:15:04,845 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-25 18:15:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash 243572, now seen corresponding path program 1 times [2021-11-25 18:15:04,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:04,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273498192] [2021-11-25 18:15:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:04,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:15:05,098 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:05,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273498192] [2021-11-25 18:15:05,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273498192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:05,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:05,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:15:05,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852003698] [2021-11-25 18:15:05,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:05,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:15:05,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:05,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:15:05,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:15:05,146 INFO L87 Difference]: Start difference. First operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 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 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-25 18:15:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:15:05,207 INFO L93 Difference]: Finished difference Result 81 states and 142 transitions. [2021-11-25 18:15:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:15:05,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-25 18:15:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:05,227 INFO L225 Difference]: With dead ends: 81 [2021-11-25 18:15:05,228 INFO L226 Difference]: Without dead ends: 79 [2021-11-25 18:15:05,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:15:05,236 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:05,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:15:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-25 18:15:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-25 18:15:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 71 states have (on average 1.943661971830986) internal successors, (138), 78 states have internal predecessors, (138), 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) [2021-11-25 18:15:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 138 transitions. [2021-11-25 18:15:05,285 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 138 transitions. Word has length 3 [2021-11-25 18:15:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:05,286 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 138 transitions. [2021-11-25 18:15:05,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-25 18:15:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 138 transitions. [2021-11-25 18:15:05,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:15:05,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:05,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:15:05,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:15:05,289 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-25 18:15:05,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 234058939, now seen corresponding path program 1 times [2021-11-25 18:15:05,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:05,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523210484] [2021-11-25 18:15:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:05,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:15:05,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:05,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523210484] [2021-11-25 18:15:05,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523210484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:05,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:05,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:15:05,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127120312] [2021-11-25 18:15:05,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:05,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:15:05,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:05,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:15:05,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:15:05,365 INFO L87 Difference]: Start difference. First operand 79 states and 138 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-25 18:15:05,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:15:05,428 INFO L93 Difference]: Finished difference Result 86 states and 148 transitions. [2021-11-25 18:15:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:15:05,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-11-25 18:15:05,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:05,432 INFO L225 Difference]: With dead ends: 86 [2021-11-25 18:15:05,432 INFO L226 Difference]: Without dead ends: 86 [2021-11-25 18:15:05,433 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:15:05,434 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:05,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 8 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:15:05,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-25 18:15:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-11-25 18:15:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.8873239436619718) internal successors, (134), 77 states have internal predecessors, (134), 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) [2021-11-25 18:15:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 134 transitions. [2021-11-25 18:15:05,460 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 134 transitions. Word has length 5 [2021-11-25 18:15:05,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:05,460 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 134 transitions. [2021-11-25 18:15:05,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-25 18:15:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 134 transitions. [2021-11-25 18:15:05,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:15:05,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:05,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:15:05,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:15:05,462 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-25 18:15:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1592376717, now seen corresponding path program 1 times [2021-11-25 18:15:05,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:05,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386211309] [2021-11-25 18:15:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:05,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:15:05,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:05,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386211309] [2021-11-25 18:15:05,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386211309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:05,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:05,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:15:05,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045672678] [2021-11-25 18:15:05,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:05,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:15:05,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:05,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:15:05,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:15:05,548 INFO L87 Difference]: Start difference. First operand 78 states and 134 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-25 18:15:05,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:15:05,609 INFO L93 Difference]: Finished difference Result 83 states and 140 transitions. [2021-11-25 18:15:05,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:15:05,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-25 18:15:05,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:05,611 INFO L225 Difference]: With dead ends: 83 [2021-11-25 18:15:05,612 INFO L226 Difference]: Without dead ends: 73 [2021-11-25 18:15:05,612 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:15:05,614 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:05,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:15:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-25 18:15:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2021-11-25 18:15:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 63 states have (on average 1.7936507936507937) internal successors, (113), 68 states have internal predecessors, (113), 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) [2021-11-25 18:15:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 113 transitions. [2021-11-25 18:15:05,628 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 113 transitions. Word has length 7 [2021-11-25 18:15:05,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:05,628 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 113 transitions. [2021-11-25 18:15:05,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-25 18:15:05,629 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 113 transitions. [2021-11-25 18:15:05,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:15:05,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:05,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:15:05,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:15:05,631 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-25 18:15:05,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1566661765, now seen corresponding path program 1 times [2021-11-25 18:15:05,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:05,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556237723] [2021-11-25 18:15:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:05,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:15:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:15:05,709 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:15:05,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556237723] [2021-11-25 18:15:05,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556237723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:15:05,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:15:05,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:15:05,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002829353] [2021-11-25 18:15:05,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:15:05,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:15:05,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:15:05,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:15:05,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:15:05,713 INFO L87 Difference]: Start difference. First operand 69 states and 113 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-25 18:15:05,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:15:05,773 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2021-11-25 18:15:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:15:05,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-25 18:15:05,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:15:05,775 INFO L225 Difference]: With dead ends: 66 [2021-11-25 18:15:05,776 INFO L226 Difference]: Without dead ends: 56 [2021-11-25 18:15:05,776 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:15:05,778 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:15:05,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:15:05,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-25 18:15:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-25 18:15:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 55 states have internal predecessors, (82), 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) [2021-11-25 18:15:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2021-11-25 18:15:05,792 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 7 [2021-11-25 18:15:05,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:15:05,793 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2021-11-25 18:15:05,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-25 18:15:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2021-11-25 18:15:05,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:15:05,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:15:05,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:15:05,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:15:05,795 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-25 18:15:05,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:15:05,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1265733771, now seen corresponding path program 1 times [2021-11-25 18:15:05,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:15:05,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540622866] [2021-11-25 18:15:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:15:05,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:15:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:15:05,853 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:15:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:15:05,920 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:15:05,920 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:15:05,921 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-25 18:15:05,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-25 18:15:05,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-25 18:15:05,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-11-25 18:15:05,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-11-25 18:15:05,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-25 18:15:05,926 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-25 18:15:05,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-25 18:15:05,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:15:05,930 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 18:15:05,937 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 18:15:05,937 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:15:05,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:15:05 BasicIcfg [2021-11-25 18:15:05,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:15:05,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:15:05,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:15:05,970 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:15:05,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:01" (3/4) ... [2021-11-25 18:15:05,974 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 18:15:05,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:15:05,975 INFO L158 Benchmark]: Toolchain (without parser) took 6355.91ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 55.4MB in the beginning and 80.1MB in the end (delta: -24.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2021-11-25 18:15:05,976 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:15:05,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 831.38ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 56.2MB in the end (delta: -1.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-11-25 18:15:05,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.36ms. Allocated memory is still 98.6MB. Free memory was 56.2MB in the beginning and 53.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:15:05,978 INFO L158 Benchmark]: Boogie Preprocessor took 61.01ms. Allocated memory is still 98.6MB. Free memory was 53.7MB in the beginning and 52.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:15:05,979 INFO L158 Benchmark]: RCFGBuilder took 602.02ms. Allocated memory is still 98.6MB. Free memory was 52.3MB in the beginning and 40.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 18:15:05,979 INFO L158 Benchmark]: TraceAbstraction took 4738.61ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 80.1MB in the end (delta: 20.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-11-25 18:15:05,980 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 125.8MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:15:05,984 INFO L339 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 98.6MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 831.38ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 56.2MB in the end (delta: -1.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.36ms. Allocated memory is still 98.6MB. Free memory was 56.2MB in the beginning and 53.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.01ms. Allocated memory is still 98.6MB. Free memory was 53.7MB in the beginning and 52.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.02ms. Allocated memory is still 98.6MB. Free memory was 52.3MB in the beginning and 40.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4738.61ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 80.1MB in the end (delta: 20.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 125.8MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 77 PlacesBefore, 26 PlacesAfterwards, 73 TransitionsBefore, 22 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 9 FixpointIterations, 32 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 2938 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1397, positive: 1120, positive conditional: 0, positive unconditional: 1120, negative: 277, negative conditional: 0, negative unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 476, positive: 439, positive conditional: 0, positive unconditional: 439, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 476, positive: 403, positive conditional: 0, positive unconditional: 403, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 73, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 173, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1397, positive: 681, positive conditional: 0, positive unconditional: 681, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 476, unknown conditional: 0, unknown unconditional: 476] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - 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: 930]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L927] 0 pthread_t id; [L928] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L930] EXPR 0 myglobal+1 [L930] 0 myglobal=myglobal+1 VAL [arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L922] 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L930] 0 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal+1 [922] and C: myglobal=myglobal+1 [930] - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 26 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-25 18:15:06,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7b3a676-ce71-42ce-87e5-6f423acbb9ca/bin/utaipan-eEHZpOm5b7/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