./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 012c46975e61d3a8df350de2a682cb9d47f59406509497c2ea72a562542ce55a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:00:19,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:00:19,426 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 05:00:19,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:00:19,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:00:19,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:00:19,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:00:19,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:00:19,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:00:19,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:00:19,476 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:00:19,476 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:00:19,477 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:00:19,477 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:00:19,479 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:00:19,480 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:00:19,480 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:00:19,481 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:00:19,481 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:00:19,482 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:00:19,486 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:00:19,486 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:00:19,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:00:19,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:00:19,488 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:00:19,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:00:19,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:00:19,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:00:19,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:00:19,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:00:19,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:00:19,490 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 05:00:19,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:00:19,491 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:00:19,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:00:19,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:00:19,493 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:00:19,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:00:19,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:00:19,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:19,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:00:19,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:00:19,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:00:19,496 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:00:19,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:00:19,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:00:19,497 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:00:19,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:00:19,498 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_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 012c46975e61d3a8df350de2a682cb9d47f59406509497c2ea72a562542ce55a [2024-11-09 05:00:19,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:00:19,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:00:19,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:00:19,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:00:19,786 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:00:19,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-deagle/airline-20.i Unable to find full path for "g++" [2024-11-09 05:00:21,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:00:22,065 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:00:22,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/sv-benchmarks/c/pthread-deagle/airline-20.i [2024-11-09 05:00:22,088 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/data/4280bf8c7/5725219bde144862863e65eaf6a08f3a/FLAG1ab66c80b [2024-11-09 05:00:22,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/data/4280bf8c7/5725219bde144862863e65eaf6a08f3a [2024-11-09 05:00:22,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:00:22,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:00:22,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:00:22,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:00:22,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:00:22,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8e6dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22, skipping insertion in model container [2024-11-09 05:00:22,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:00:22,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:00:22,743 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:00:22,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:00:22,848 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:00:22,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22 WrapperNode [2024-11-09 05:00:22,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:00:22,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:00:22,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:00:22,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:00:22,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,895 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-09 05:00:22,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:00:22,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:00:22,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:00:22,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:00:22,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:00:22,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:00:22,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:00:22,933 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:00:22,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (1/1) ... [2024-11-09 05:00:22,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:00:22,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:00:22,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:00:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:00:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:00:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 05:00:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:00:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:00:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2024-11-09 05:00:23,039 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2024-11-09 05:00:23,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:00:23,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:00:23,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 05:00:23,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:00:23,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:00:23,042 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 05:00:23,196 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:00:23,198 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:00:23,429 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:00:23,430 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:00:23,474 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:00:23,474 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:00:23,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:23 BoogieIcfgContainer [2024-11-09 05:00:23,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:00:23,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:00:23,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:00:23,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:00:23,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:00:22" (1/3) ... [2024-11-09 05:00:23,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e26a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:23, skipping insertion in model container [2024-11-09 05:00:23,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:22" (2/3) ... [2024-11-09 05:00:23,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e26a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:23, skipping insertion in model container [2024-11-09 05:00:23,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:23" (3/3) ... [2024-11-09 05:00:23,485 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-20.i [2024-11-09 05:00:23,506 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:00:23,506 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-09 05:00:23,507 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:00:23,583 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 05:00:23,623 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 101 transitions, 209 flow [2024-11-09 05:00:23,753 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 973 states, 937 states have (on average 2.1334044823906084) internal successors, (1999), 972 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:23,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:00:23,788 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5871ad2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:00:23,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-09 05:00:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 973 states, 937 states have (on average 2.1334044823906084) internal successors, (1999), 972 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:00:23,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:23,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:23,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:23,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash 763527961, now seen corresponding path program 1 times [2024-11-09 05:00:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:23,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597053088] [2024-11-09 05:00:23,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:23,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:24,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:24,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597053088] [2024-11-09 05:00:24,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597053088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:24,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:24,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:00:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597513497] [2024-11-09 05:00:24,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:24,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:00:24,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:24,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:00:24,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:00:24,060 INFO L87 Difference]: Start difference. First operand has 973 states, 937 states have (on average 2.1334044823906084) internal successors, (1999), 972 states have internal predecessors, (1999), 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 16.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:24,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:24,140 INFO L93 Difference]: Finished difference Result 1101 states and 2263 transitions. [2024-11-09 05:00:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:00:24,144 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-09 05:00:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:24,167 INFO L225 Difference]: With dead ends: 1101 [2024-11-09 05:00:24,167 INFO L226 Difference]: Without dead ends: 731 [2024-11-09 05:00:24,175 INFO L431 NwaCegarLoop]: 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 [2024-11-09 05:00:24,179 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:24,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:00:24,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-09 05:00:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2024-11-09 05:00:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 710 states have (on average 2.046478873239437) internal successors, (1453), 730 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:24,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1453 transitions. [2024-11-09 05:00:24,279 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1453 transitions. Word has length 16 [2024-11-09 05:00:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:24,279 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 1453 transitions. [2024-11-09 05:00:24,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1453 transitions. [2024-11-09 05:00:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:00:24,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:24,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:24,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:00:24,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:24,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash 974405026, now seen corresponding path program 1 times [2024-11-09 05:00:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:24,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609490220] [2024-11-09 05:00:24,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:24,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:24,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609490220] [2024-11-09 05:00:24,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609490220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:24,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:24,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:00:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066183378] [2024-11-09 05:00:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:24,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:00:24,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:00:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:24,478 INFO L87 Difference]: Start difference. First operand 731 states and 1453 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:24,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:24,634 INFO L93 Difference]: Finished difference Result 744 states and 1466 transitions. [2024-11-09 05:00:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:00:24,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2024-11-09 05:00:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:24,640 INFO L225 Difference]: With dead ends: 744 [2024-11-09 05:00:24,640 INFO L226 Difference]: Without dead ends: 729 [2024-11-09 05:00:24,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:24,643 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 34 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 140 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 [2024-11-09 05:00:24,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 140 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:00:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-09 05:00:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2024-11-09 05:00:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 708 states have (on average 2.0466101694915255) internal successors, (1449), 728 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1449 transitions. [2024-11-09 05:00:24,678 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1449 transitions. Word has length 26 [2024-11-09 05:00:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:24,679 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1449 transitions. [2024-11-09 05:00:24,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1449 transitions. [2024-11-09 05:00:24,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:00:24,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:24,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:24,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:00:24,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:24,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:24,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1103455219, now seen corresponding path program 1 times [2024-11-09 05:00:24,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:24,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927345886] [2024-11-09 05:00:24,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:24,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:25,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:25,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927345886] [2024-11-09 05:00:25,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927345886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:25,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:25,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:00:25,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121176277] [2024-11-09 05:00:25,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:25,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:00:25,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:25,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:00:25,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:00:25,276 INFO L87 Difference]: Start difference. First operand 729 states and 1449 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:25,514 INFO L93 Difference]: Finished difference Result 729 states and 1449 transitions. [2024-11-09 05:00:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:00:25,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2024-11-09 05:00:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:25,521 INFO L225 Difference]: With dead ends: 729 [2024-11-09 05:00:25,521 INFO L226 Difference]: Without dead ends: 712 [2024-11-09 05:00:25,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:00:25,525 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 72 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:25,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 317 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:00:25,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-09 05:00:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-09 05:00:25,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 695 states have (on average 2.035971223021583) internal successors, (1415), 711 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1415 transitions. [2024-11-09 05:00:25,553 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1415 transitions. Word has length 30 [2024-11-09 05:00:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:25,554 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 1415 transitions. [2024-11-09 05:00:25,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1415 transitions. [2024-11-09 05:00:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:00:25,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:25,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:25,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:00:25,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:25,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1482090369, now seen corresponding path program 1 times [2024-11-09 05:00:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:25,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886210298] [2024-11-09 05:00:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:25,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:25,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:25,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886210298] [2024-11-09 05:00:25,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886210298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:25,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:25,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:00:25,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291895147] [2024-11-09 05:00:25,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:25,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:00:25,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:25,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:00:25,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:25,625 INFO L87 Difference]: Start difference. First operand 712 states and 1415 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:25,662 INFO L93 Difference]: Finished difference Result 869 states and 1682 transitions. [2024-11-09 05:00:25,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:00:25,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2024-11-09 05:00:25,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:25,669 INFO L225 Difference]: With dead ends: 869 [2024-11-09 05:00:25,669 INFO L226 Difference]: Without dead ends: 821 [2024-11-09 05:00:25,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:25,672 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:25,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 205 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:00:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-09 05:00:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 664. [2024-11-09 05:00:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 653 states have (on average 2.0183767228177643) internal successors, (1318), 663 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1318 transitions. [2024-11-09 05:00:25,702 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1318 transitions. Word has length 34 [2024-11-09 05:00:25,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:25,703 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 1318 transitions. [2024-11-09 05:00:25,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1318 transitions. [2024-11-09 05:00:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:00:25,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:25,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:25,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:00:25,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:25,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:25,708 INFO L85 PathProgramCache]: Analyzing trace with hash 690691868, now seen corresponding path program 1 times [2024-11-09 05:00:25,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:25,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111978258] [2024-11-09 05:00:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:25,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:25,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111978258] [2024-11-09 05:00:25,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111978258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:25,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:25,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:00:25,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015859305] [2024-11-09 05:00:25,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:25,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:00:25,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:25,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:00:25,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:25,761 INFO L87 Difference]: Start difference. First operand 664 states and 1318 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:25,797 INFO L93 Difference]: Finished difference Result 819 states and 1584 transitions. [2024-11-09 05:00:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:00:25,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2024-11-09 05:00:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:25,802 INFO L225 Difference]: With dead ends: 819 [2024-11-09 05:00:25,803 INFO L226 Difference]: Without dead ends: 650 [2024-11-09 05:00:25,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:25,807 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 65 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:25,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 189 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:00:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-09 05:00:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 513. [2024-11-09 05:00:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 509 states have (on average 1.9921414538310414) internal successors, (1014), 512 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 1014 transitions. [2024-11-09 05:00:25,831 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 1014 transitions. Word has length 37 [2024-11-09 05:00:25,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:25,834 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 1014 transitions. [2024-11-09 05:00:25,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:25,834 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 1014 transitions. [2024-11-09 05:00:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:00:25,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:25,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:25,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:00:25,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:25,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:25,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1505503224, now seen corresponding path program 1 times [2024-11-09 05:00:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:25,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713670696] [2024-11-09 05:00:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:25,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:26,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:26,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713670696] [2024-11-09 05:00:26,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713670696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:00:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662340881] [2024-11-09 05:00:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:26,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:00:26,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:00:26,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:00:26,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:00:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:26,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:00:26,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:00:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:26,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:00:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:26,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662340881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:00:26,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1566109832] [2024-11-09 05:00:26,411 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:00:26,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:00:26,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 05:00:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014522611] [2024-11-09 05:00:26,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:00:26,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:00:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:00:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:00:26,419 INFO L87 Difference]: Start difference. First operand 513 states and 1014 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:26,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:26,533 INFO L93 Difference]: Finished difference Result 513 states and 1014 transitions. [2024-11-09 05:00:26,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:00:26,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 48 [2024-11-09 05:00:26,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:26,537 INFO L225 Difference]: With dead ends: 513 [2024-11-09 05:00:26,537 INFO L226 Difference]: Without dead ends: 297 [2024-11-09 05:00:26,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:00:26,542 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 230 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:26,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 152 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:00:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-09 05:00:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-11-09 05:00:26,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.9189189189189189) internal successors, (568), 296 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 568 transitions. [2024-11-09 05:00:26,561 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 568 transitions. Word has length 48 [2024-11-09 05:00:26,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:26,561 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 568 transitions. [2024-11-09 05:00:26,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 568 transitions. [2024-11-09 05:00:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:00:26,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:26,567 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:26,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:00:26,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:00:26,774 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 05:00:26,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1575052164, now seen corresponding path program 1 times [2024-11-09 05:00:26,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:26,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96786656] [2024-11-09 05:00:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:26,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:00:26,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:00:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:00:26,876 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:00:26,876 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:00:26,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-09 05:00:26,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-09 05:00:26,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-09 05:00:26,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-09 05:00:26,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-09 05:00:26,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-09 05:00:26,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-09 05:00:26,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-09 05:00:26,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-09 05:00:26,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-09 05:00:26,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-09 05:00:26,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-09 05:00:26,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-09 05:00:26,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-09 05:00:26,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-09 05:00:26,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:00:26,891 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:26,893 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 05:00:26,894 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 05:00:26,924 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 05:00:26,928 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 117 places, 122 transitions, 260 flow [2024-11-09 05:00:27,675 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18145 states, 17954 states have (on average 3.108053915561992) internal successors, (55802), 18144 states have internal predecessors, (55802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:27,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:00:27,684 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5871ad2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:00:27,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-09 05:00:27,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 18145 states, 17954 states have (on average 3.108053915561992) internal successors, (55802), 18144 states have internal predecessors, (55802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:27,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:00:27,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:27,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:27,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:27,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:27,725 INFO L85 PathProgramCache]: Analyzing trace with hash 254033177, now seen corresponding path program 1 times [2024-11-09 05:00:27,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:27,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757683210] [2024-11-09 05:00:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:27,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:27,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:27,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:27,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757683210] [2024-11-09 05:00:27,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757683210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:27,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:27,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:00:27,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850896375] [2024-11-09 05:00:27,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:27,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:00:27,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:27,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:00:27,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:00:27,778 INFO L87 Difference]: Start difference. First operand has 18145 states, 17954 states have (on average 3.108053915561992) internal successors, (55802), 18144 states have internal predecessors, (55802), 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 16.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:28,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:28,350 INFO L93 Difference]: Finished difference Result 20449 states and 62986 transitions. [2024-11-09 05:00:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:00:28,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-09 05:00:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:28,594 INFO L225 Difference]: With dead ends: 20449 [2024-11-09 05:00:28,594 INFO L226 Difference]: Without dead ends: 12883 [2024-11-09 05:00:28,611 INFO L431 NwaCegarLoop]: 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 [2024-11-09 05:00:28,612 INFO L432 NwaCegarLoop]: 100 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, 100 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 [2024-11-09 05:00:28,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:00:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2024-11-09 05:00:29,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 12883. [2024-11-09 05:00:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12883 states, 12797 states have (on average 3.0424318199578027) internal successors, (38934), 12882 states have internal predecessors, (38934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12883 states to 12883 states and 38934 transitions. [2024-11-09 05:00:29,456 INFO L78 Accepts]: Start accepts. Automaton has 12883 states and 38934 transitions. Word has length 16 [2024-11-09 05:00:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:29,457 INFO L471 AbstractCegarLoop]: Abstraction has 12883 states and 38934 transitions. [2024-11-09 05:00:29,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 16.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 12883 states and 38934 transitions. [2024-11-09 05:00:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:00:29,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:29,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:29,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:00:29,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:29,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash 303670242, now seen corresponding path program 1 times [2024-11-09 05:00:29,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:29,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989538318] [2024-11-09 05:00:29,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:29,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:29,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989538318] [2024-11-09 05:00:29,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989538318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:29,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:29,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:00:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817708292] [2024-11-09 05:00:29,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:29,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:00:29,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:00:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:29,516 INFO L87 Difference]: Start difference. First operand 12883 states and 38934 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:29,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:29,802 INFO L93 Difference]: Finished difference Result 12896 states and 38947 transitions. [2024-11-09 05:00:29,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:00:29,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2024-11-09 05:00:29,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:29,927 INFO L225 Difference]: With dead ends: 12896 [2024-11-09 05:00:29,927 INFO L226 Difference]: Without dead ends: 12881 [2024-11-09 05:00:29,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:29,936 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 34 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:29,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 173 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:00:29,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12881 states. [2024-11-09 05:00:30,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12881 to 12881. [2024-11-09 05:00:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12881 states, 12795 states have (on average 3.0425947635795234) internal successors, (38930), 12880 states have internal predecessors, (38930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12881 states to 12881 states and 38930 transitions. [2024-11-09 05:00:30,589 INFO L78 Accepts]: Start accepts. Automaton has 12881 states and 38930 transitions. Word has length 26 [2024-11-09 05:00:30,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:30,590 INFO L471 AbstractCegarLoop]: Abstraction has 12881 states and 38930 transitions. [2024-11-09 05:00:30,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 12881 states and 38930 transitions. [2024-11-09 05:00:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:00:30,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:30,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:30,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:00:30,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:30,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:30,592 INFO L85 PathProgramCache]: Analyzing trace with hash 812054707, now seen corresponding path program 1 times [2024-11-09 05:00:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:30,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072434540] [2024-11-09 05:00:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:30,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:31,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:31,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072434540] [2024-11-09 05:00:31,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072434540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:31,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:31,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:00:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555333619] [2024-11-09 05:00:31,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:31,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:00:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:00:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:00:31,041 INFO L87 Difference]: Start difference. First operand 12881 states and 38930 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:31,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:31,361 INFO L93 Difference]: Finished difference Result 12881 states and 38930 transitions. [2024-11-09 05:00:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:00:31,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2024-11-09 05:00:31,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:31,590 INFO L225 Difference]: With dead ends: 12881 [2024-11-09 05:00:31,590 INFO L226 Difference]: Without dead ends: 12608 [2024-11-09 05:00:31,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:00:31,596 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 180 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:31,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 422 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:00:31,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2024-11-09 05:00:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12608. [2024-11-09 05:00:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12535 states have (on average 3.039170323095333) internal successors, (38096), 12607 states have internal predecessors, (38096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 38096 transitions. [2024-11-09 05:00:32,172 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 38096 transitions. Word has length 30 [2024-11-09 05:00:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:32,173 INFO L471 AbstractCegarLoop]: Abstraction has 12608 states and 38096 transitions. [2024-11-09 05:00:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 38096 transitions. [2024-11-09 05:00:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:00:32,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:32,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:00:32,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:32,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1055002062, now seen corresponding path program 1 times [2024-11-09 05:00:32,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:32,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959182992] [2024-11-09 05:00:32,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:32,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:32,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959182992] [2024-11-09 05:00:32,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959182992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:32,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:32,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:00:32,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761791540] [2024-11-09 05:00:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:32,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:00:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:32,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:00:32,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:32,218 INFO L87 Difference]: Start difference. First operand 12608 states and 38096 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:32,381 INFO L93 Difference]: Finished difference Result 18241 states and 53369 transitions. [2024-11-09 05:00:32,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:00:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2024-11-09 05:00:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:32,637 INFO L225 Difference]: With dead ends: 18241 [2024-11-09 05:00:32,638 INFO L226 Difference]: Without dead ends: 16671 [2024-11-09 05:00:32,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:32,648 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 84 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:32,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 245 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:00:32,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16671 states. [2024-11-09 05:00:33,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16671 to 11930. [2024-11-09 05:00:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11930 states, 11875 states have (on average 3.0077473684210525) internal successors, (35717), 11929 states have internal predecessors, (35717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:33,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11930 states to 11930 states and 35717 transitions. [2024-11-09 05:00:33,140 INFO L78 Accepts]: Start accepts. Automaton has 11930 states and 35717 transitions. Word has length 34 [2024-11-09 05:00:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:33,141 INFO L471 AbstractCegarLoop]: Abstraction has 11930 states and 35717 transitions. [2024-11-09 05:00:33,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 11930 states and 35717 transitions. [2024-11-09 05:00:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:00:33,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:33,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:33,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:00:33,142 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:33,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1003810071, now seen corresponding path program 1 times [2024-11-09 05:00:33,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:33,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132583948] [2024-11-09 05:00:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:33,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:33,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132583948] [2024-11-09 05:00:33,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132583948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:33,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:33,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:00:33,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107316449] [2024-11-09 05:00:33,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:33,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:00:33,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:00:33,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:33,188 INFO L87 Difference]: Start difference. First operand 11930 states and 35717 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:33,604 INFO L93 Difference]: Finished difference Result 17085 states and 49721 transitions. [2024-11-09 05:00:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:00:33,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2024-11-09 05:00:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:33,697 INFO L225 Difference]: With dead ends: 17085 [2024-11-09 05:00:33,697 INFO L226 Difference]: Without dead ends: 13810 [2024-11-09 05:00:33,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:00:33,712 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 82 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:33,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 239 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:00:33,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13810 states. [2024-11-09 05:00:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13810 to 10313. [2024-11-09 05:00:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10313 states, 10271 states have (on average 2.9310680556907798) internal successors, (30105), 10312 states have internal predecessors, (30105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:34,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10313 states to 10313 states and 30105 transitions. [2024-11-09 05:00:34,251 INFO L78 Accepts]: Start accepts. Automaton has 10313 states and 30105 transitions. Word has length 37 [2024-11-09 05:00:34,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:34,252 INFO L471 AbstractCegarLoop]: Abstraction has 10313 states and 30105 transitions. [2024-11-09 05:00:34,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10313 states and 30105 transitions. [2024-11-09 05:00:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:00:34,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:34,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:34,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:00:34,255 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:34,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:34,256 INFO L85 PathProgramCache]: Analyzing trace with hash -438251947, now seen corresponding path program 1 times [2024-11-09 05:00:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051623626] [2024-11-09 05:00:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:34,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:34,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051623626] [2024-11-09 05:00:34,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051623626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:00:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200108082] [2024-11-09 05:00:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:34,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:00:34,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:00:34,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:00:34,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:00:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:34,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:00:34,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:00:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:34,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:00:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:34,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200108082] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:00:34,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [871923531] [2024-11-09 05:00:34,617 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:00:34,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:00:34,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 05:00:34,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722621125] [2024-11-09 05:00:34,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:00:34,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:00:34,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:34,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:00:34,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:00:34,622 INFO L87 Difference]: Start difference. First operand 10313 states and 30105 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:34,874 INFO L93 Difference]: Finished difference Result 10313 states and 30105 transitions. [2024-11-09 05:00:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:00:34,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 48 [2024-11-09 05:00:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:35,042 INFO L225 Difference]: With dead ends: 10313 [2024-11-09 05:00:35,042 INFO L226 Difference]: Without dead ends: 4615 [2024-11-09 05:00:35,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:00:35,064 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 410 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:35,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 377 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:00:35,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2024-11-09 05:00:35,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 4615. [2024-11-09 05:00:35,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 4610 states have (on average 2.972017353579176) internal successors, (13701), 4614 states have internal predecessors, (13701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 13701 transitions. [2024-11-09 05:00:35,201 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 13701 transitions. Word has length 48 [2024-11-09 05:00:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:35,201 INFO L471 AbstractCegarLoop]: Abstraction has 4615 states and 13701 transitions. [2024-11-09 05:00:35,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 13701 transitions. [2024-11-09 05:00:35,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 05:00:35,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:35,205 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:35,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:00:35,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:00:35,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:35,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:35,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1657144235, now seen corresponding path program 1 times [2024-11-09 05:00:35,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:35,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035804912] [2024-11-09 05:00:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:35,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:35,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:35,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035804912] [2024-11-09 05:00:35,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035804912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:00:35,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988127989] [2024-11-09 05:00:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:35,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:00:35,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:00:35,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:00:35,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:00:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:35,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:00:35,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:00:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:35,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:00:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:00:35,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988127989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:00:35,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [903447952] [2024-11-09 05:00:35,824 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 05:00:35,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:00:35,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 05:00:35,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310037614] [2024-11-09 05:00:35,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:00:35,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:00:35,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:00:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:00:35,831 INFO L87 Difference]: Start difference. First operand 4615 states and 13701 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:36,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:36,104 INFO L93 Difference]: Finished difference Result 7971 states and 22848 transitions. [2024-11-09 05:00:36,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:00:36,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 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 61 [2024-11-09 05:00:36,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:36,144 INFO L225 Difference]: With dead ends: 7971 [2024-11-09 05:00:36,145 INFO L226 Difference]: Without dead ends: 6399 [2024-11-09 05:00:36,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:00:36,151 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 303 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:36,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 285 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:00:36,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2024-11-09 05:00:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 4863. [2024-11-09 05:00:36,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4863 states, 4859 states have (on average 2.915208890718255) internal successors, (14165), 4862 states have internal predecessors, (14165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4863 states to 4863 states and 14165 transitions. [2024-11-09 05:00:36,321 INFO L78 Accepts]: Start accepts. Automaton has 4863 states and 14165 transitions. Word has length 61 [2024-11-09 05:00:36,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:36,322 INFO L471 AbstractCegarLoop]: Abstraction has 4863 states and 14165 transitions. [2024-11-09 05:00:36,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4863 states and 14165 transitions. [2024-11-09 05:00:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 05:00:36,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:36,325 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:36,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:00:36,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 05:00:36,530 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:36,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:36,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1575531451, now seen corresponding path program 1 times [2024-11-09 05:00:36,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:36,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763787540] [2024-11-09 05:00:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:36,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:00:36,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763787540] [2024-11-09 05:00:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763787540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:36,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:36,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:00:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636222126] [2024-11-09 05:00:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:36,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:00:36,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:00:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:00:36,661 INFO L87 Difference]: Start difference. First operand 4863 states and 14165 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:36,803 INFO L93 Difference]: Finished difference Result 6874 states and 19548 transitions. [2024-11-09 05:00:36,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:00:36,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 61 [2024-11-09 05:00:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:36,837 INFO L225 Difference]: With dead ends: 6874 [2024-11-09 05:00:36,838 INFO L226 Difference]: Without dead ends: 5487 [2024-11-09 05:00:36,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:00:36,844 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 91 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:36,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 217 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:00:36,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5487 states. [2024-11-09 05:00:37,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5487 to 4936. [2024-11-09 05:00:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4936 states, 4933 states have (on average 2.8471518345834177) internal successors, (14045), 4935 states have internal predecessors, (14045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 14045 transitions. [2024-11-09 05:00:37,210 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 14045 transitions. Word has length 61 [2024-11-09 05:00:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:37,212 INFO L471 AbstractCegarLoop]: Abstraction has 4936 states and 14045 transitions. [2024-11-09 05:00:37,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:00:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 14045 transitions. [2024-11-09 05:00:37,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 05:00:37,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:37,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:37,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:00:37,220 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 05:00:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2031425338, now seen corresponding path program 1 times [2024-11-09 05:00:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149760871] [2024-11-09 05:00:37,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:37,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:00:37,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:00:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:00:37,275 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:00:37,276 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:00:37,276 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2024-11-09 05:00:37,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-09 05:00:37,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-09 05:00:37,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-09 05:00:37,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-09 05:00:37,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-09 05:00:37,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2024-11-09 05:00:37,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-09 05:00:37,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-09 05:00:37,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-09 05:00:37,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-09 05:00:37,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2024-11-09 05:00:37,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-09 05:00:37,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-09 05:00:37,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-09 05:00:37,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-09 05:00:37,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-09 05:00:37,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-09 05:00:37,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-09 05:00:37,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:00:37,282 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:37,381 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-09 05:00:37,382 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:00:37,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:00:37 BasicIcfg [2024-11-09 05:00:37,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:00:37,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:00:37,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:00:37,388 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:00:37,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:23" (3/4) ... [2024-11-09 05:00:37,390 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:00:37,488 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:00:37,488 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:00:37,489 INFO L158 Benchmark]: Toolchain (without parser) took 15373.91ms. Allocated memory was 121.6MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 86.9MB in the beginning and 6.8GB in the end (delta: -6.7GB). Peak memory consumption was 477.0MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,489 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:00:37,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.61ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 64.5MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.95ms. Allocated memory is still 121.6MB. Free memory was 64.5MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,490 INFO L158 Benchmark]: Boogie Preprocessor took 34.74ms. Allocated memory is still 121.6MB. Free memory was 62.5MB in the beginning and 60.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,491 INFO L158 Benchmark]: RCFGBuilder took 542.79ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 60.7MB in the beginning and 131.5MB in the end (delta: -70.9MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,491 INFO L158 Benchmark]: TraceAbstraction took 13909.72ms. Allocated memory was 176.2MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 131.5MB in the beginning and 6.8GB in the end (delta: -6.6GB). Peak memory consumption was 454.1MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,492 INFO L158 Benchmark]: Witness Printer took 100.69ms. Allocated memory is still 7.3GB. Free memory was 6.8GB in the beginning and 6.8GB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:00:37,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.61ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 64.5MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.95ms. Allocated memory is still 121.6MB. Free memory was 64.5MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.74ms. Allocated memory is still 121.6MB. Free memory was 62.5MB in the beginning and 60.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.79ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 60.7MB in the beginning and 131.5MB in the end (delta: -70.9MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13909.72ms. Allocated memory was 176.2MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 131.5MB in the beginning and 6.8GB in the end (delta: -6.6GB). Peak memory consumption was 454.1MB. Max. memory is 16.1GB. * Witness Printer took 100.69ms. Allocated memory is still 7.3GB. Free memory was 6.8GB in the beginning and 6.8GB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 722]: Data race detected Data race detected The following path leads to a data race: [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0] [L718] 0 int stopSales; VAL [numberOfSeatsSold=0, stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, numberOfSeatsSold=0, stopSales=0] [L736] 0 pthread_t salethreads[20]; VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, numOfTickets=0, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L738] 0 numOfTickets = 20 VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, i=0, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND FALSE 0 !(i < 20) VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, i=0, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 20 VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, i=0, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=81, \old(argv)={83:82}, argc=81, i=0, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, argc=81, i=0, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L746] 0 i++ VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, arg={0:0}, argc=81, i=0, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L746] 0 i++ VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, _numberOfSeatsSold=0, arg={0:0}, argc=81, i=1, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND FALSE 0 !(i < 20) VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, _numberOfSeatsSold=0, arg={0:0}, argc=81, i=1, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 20 VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, _numberOfSeatsSold=0, arg={0:0}, argc=81, i=1, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (20 - (((20 / 10) == 0) ? 1 : (20 / 10)))) VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, _numberOfSeatsSold=0, arg={0:0}, argc=81, i=1, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=81, \old(argv)={83:82}, _numberOfSeatsSold=0, arg={0:0}, argc=81, i=1, numOfTickets=20, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=0, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=1, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=20, numberOfSeatsSold=1, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 113 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 468 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 468 mSDsluCounter, 1088 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 539 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 254 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 549 mSDtfsCounter, 254 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=973occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 294 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 2 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 131 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1184 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1184 mSDsluCounter, 2058 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1208 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 444 IncrementalHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 850 mSDtfsCounter, 444 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18145occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 10325 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 1030 SizeOfPredicates, 3 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 36/51 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 05:00:37,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1297e8f9-e6ce-45e7-bf86-e7e7f741bef4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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