./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson-b.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_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/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_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/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_f1417b58-365c-42b7-bd28-07c038960645/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 13ba0c0f12adccd3d0e8bef05c1f05e632aaa49018b022a8b148494f09e3ffe5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:40:39,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:40:39,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 05:40:39,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:40:39,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:40:39,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:40:39,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:40:39,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:40:39,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:40:39,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:40:39,379 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:40:39,380 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:40:39,380 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:40:39,382 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:40:39,383 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:40:39,383 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:40:39,384 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:40:39,384 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:40:39,385 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:40:39,389 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:40:39,390 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:40:39,390 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:40:39,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:40:39,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:40:39,392 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:40:39,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:40:39,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:40:39,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:40:39,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:40:39,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:40:39,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:40:39,412 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 05:40:39,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:40:39,413 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:40:39,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:40:39,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:40:39,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:40:39,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:40:39,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:40:39,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:40:39,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:40:39,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:40:39,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:40:39,417 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:40:39,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:40:39,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:40:39,418 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:40:39,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:40:39,418 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_f1417b58-365c-42b7-bd28-07c038960645/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ba0c0f12adccd3d0e8bef05c1f05e632aaa49018b022a8b148494f09e3ffe5 [2024-11-09 05:40:39,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:40:39,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:40:39,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:40:39,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:40:39,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:40:39,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-atomic/peterson-b.i Unable to find full path for "g++" [2024-11-09 05:40:41,774 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:40:42,080 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:40:42,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/sv-benchmarks/c/pthread-atomic/peterson-b.i [2024-11-09 05:40:42,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/data/a35531e4d/ab40b19717b34029b0f80a6636ad2288/FLAG7af9eab1c [2024-11-09 05:40:42,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/data/a35531e4d/ab40b19717b34029b0f80a6636ad2288 [2024-11-09 05:40:42,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:40:42,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:40:42,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:40:42,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:40:42,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:40:42,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:40:42" (1/1) ... [2024-11-09 05:40:42,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eb473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:42, skipping insertion in model container [2024-11-09 05:40:42,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:40:42" (1/1) ... [2024-11-09 05:40:42,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:40:42,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:40:42,913 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:40:42,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:40:43,033 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:40:43,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43 WrapperNode [2024-11-09 05:40:43,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:40:43,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:40:43,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:40:43,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:40:43,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,092 INFO L138 Inliner]: procedures = 160, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-11-09 05:40:43,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:40:43,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:40:43,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:40:43,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:40:43,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:40:43,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:40:43,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:40:43,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:40:43,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (1/1) ... [2024-11-09 05:40:43,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:40:43,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:40:43,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:40:43,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:40:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-09 05:40:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-09 05:40:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-09 05:40:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-09 05:40:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:40:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:40:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:40:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:40:43,230 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 05:40:43,399 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:40:43,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:40:43,633 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:40:43,633 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:40:43,649 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:40:43,649 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:40:43,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:40:43 BoogieIcfgContainer [2024-11-09 05:40:43,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:40:43,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:40:43,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:40:43,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:40:43,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:40:42" (1/3) ... [2024-11-09 05:40:43,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55739f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:40:43, skipping insertion in model container [2024-11-09 05:40:43,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:43" (2/3) ... [2024-11-09 05:40:43,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55739f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:40:43, skipping insertion in model container [2024-11-09 05:40:43,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:40:43" (3/3) ... [2024-11-09 05:40:43,659 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2024-11-09 05:40:43,679 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:40:43,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-09 05:40:43,679 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:40:43,780 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 05:40:43,826 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 135 places, 138 transitions, 290 flow [2024-11-09 05:40:44,308 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7214 states, 7151 states have (on average 2.8200251713047124) internal successors, (20166), 7213 states have internal predecessors, (20166), 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 05:40:44,339 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:40:44,349 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;@567d6ffe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:40:44,350 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-09 05:40:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 7214 states, 7151 states have (on average 2.8200251713047124) internal successors, (20166), 7213 states have internal predecessors, (20166), 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 05:40:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:40:44,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:44,386 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] [2024-11-09 05:40:44,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:44,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:44,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1196509588, now seen corresponding path program 1 times [2024-11-09 05:40:44,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:44,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800953228] [2024-11-09 05:40:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:44,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:44,694 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 05:40:44,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:44,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800953228] [2024-11-09 05:40:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800953228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:44,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:44,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:44,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078368027] [2024-11-09 05:40:44,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:44,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:44,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:44,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:44,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:44,769 INFO L87 Difference]: Start difference. First operand has 7214 states, 7151 states have (on average 2.8200251713047124) internal successors, (20166), 7213 states have internal predecessors, (20166), 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 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 05:40:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:45,105 INFO L93 Difference]: Finished difference Result 12333 states and 34487 transitions. [2024-11-09 05:40:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:45,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2024-11-09 05:40:45,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:45,199 INFO L225 Difference]: With dead ends: 12333 [2024-11-09 05:40:45,199 INFO L226 Difference]: Without dead ends: 6979 [2024-11-09 05:40:45,222 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 05:40:45,227 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 56 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:45,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 281 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:40:45,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6979 states. [2024-11-09 05:40:45,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6979 to 6877. [2024-11-09 05:40:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6802 states have (on average 2.703616583357836) internal successors, (18390), 6876 states have internal predecessors, (18390), 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 05:40:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 18390 transitions. [2024-11-09 05:40:45,682 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 18390 transitions. Word has length 23 [2024-11-09 05:40:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:45,682 INFO L471 AbstractCegarLoop]: Abstraction has 6877 states and 18390 transitions. [2024-11-09 05:40:45,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 05:40:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 18390 transitions. [2024-11-09 05:40:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:40:45,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:45,686 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] [2024-11-09 05:40:45,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:40:45,687 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:45,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1218243523, now seen corresponding path program 1 times [2024-11-09 05:40:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:45,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014807325] [2024-11-09 05:40:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:45,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:45,806 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 05:40:45,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014807325] [2024-11-09 05:40:45,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014807325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:45,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:45,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789817973] [2024-11-09 05:40:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:45,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:45,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:45,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:45,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:45,813 INFO L87 Difference]: Start difference. First operand 6877 states and 18390 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 05:40:46,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:46,041 INFO L93 Difference]: Finished difference Result 7210 states and 19287 transitions. [2024-11-09 05:40:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2024-11-09 05:40:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:46,124 INFO L225 Difference]: With dead ends: 7210 [2024-11-09 05:40:46,124 INFO L226 Difference]: Without dead ends: 7063 [2024-11-09 05:40:46,129 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 05:40:46,130 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 55 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:46,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 276 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:40:46,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7063 states. [2024-11-09 05:40:46,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7063 to 6952. [2024-11-09 05:40:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 6878 states have (on average 2.7038383250945044) internal successors, (18597), 6951 states have internal predecessors, (18597), 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 05:40:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 18597 transitions. [2024-11-09 05:40:46,462 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 18597 transitions. Word has length 28 [2024-11-09 05:40:46,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:46,463 INFO L471 AbstractCegarLoop]: Abstraction has 6952 states and 18597 transitions. [2024-11-09 05:40:46,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 05:40:46,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 18597 transitions. [2024-11-09 05:40:46,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:40:46,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:46,466 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] [2024-11-09 05:40:46,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:40:46,467 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:46,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2012954018, now seen corresponding path program 1 times [2024-11-09 05:40:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138928081] [2024-11-09 05:40:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:46,578 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 05:40:46,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138928081] [2024-11-09 05:40:46,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138928081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:46,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:46,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:46,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169076154] [2024-11-09 05:40:46,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:46,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:46,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:46,583 INFO L87 Difference]: Start difference. First operand 6952 states and 18597 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 05:40:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:46,735 INFO L93 Difference]: Finished difference Result 7261 states and 19428 transitions. [2024-11-09 05:40:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:46,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2024-11-09 05:40:46,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:46,805 INFO L225 Difference]: With dead ends: 7261 [2024-11-09 05:40:46,806 INFO L226 Difference]: Without dead ends: 7125 [2024-11-09 05:40:46,811 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 05:40:46,812 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 49 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:46,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 274 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:40:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2024-11-09 05:40:47,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 7022. [2024-11-09 05:40:47,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7022 states, 6948 states have (on average 2.703799654576857) internal successors, (18786), 7021 states have internal predecessors, (18786), 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 05:40:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7022 states to 7022 states and 18786 transitions. [2024-11-09 05:40:47,191 INFO L78 Accepts]: Start accepts. Automaton has 7022 states and 18786 transitions. Word has length 29 [2024-11-09 05:40:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:47,193 INFO L471 AbstractCegarLoop]: Abstraction has 7022 states and 18786 transitions. [2024-11-09 05:40:47,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 05:40:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 7022 states and 18786 transitions. [2024-11-09 05:40:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:40:47,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:47,202 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] [2024-11-09 05:40:47,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:40:47,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:47,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:47,204 INFO L85 PathProgramCache]: Analyzing trace with hash 219549690, now seen corresponding path program 1 times [2024-11-09 05:40:47,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:47,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144683353] [2024-11-09 05:40:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:47,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:47,272 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 05:40:47,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:47,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144683353] [2024-11-09 05:40:47,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144683353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:47,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:47,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:47,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157623206] [2024-11-09 05:40:47,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:47,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:47,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:47,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:47,275 INFO L87 Difference]: Start difference. First operand 7022 states and 18786 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 05:40:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:47,510 INFO L93 Difference]: Finished difference Result 11209 states and 30150 transitions. [2024-11-09 05:40:47,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:47,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2024-11-09 05:40:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:47,572 INFO L225 Difference]: With dead ends: 11209 [2024-11-09 05:40:47,572 INFO L226 Difference]: Without dead ends: 11059 [2024-11-09 05:40:47,575 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 05:40:47,576 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 88 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:47,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 281 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:40:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2024-11-09 05:40:47,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 7121. [2024-11-09 05:40:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7121 states, 7048 states have (on average 2.7038876276958) internal successors, (19057), 7120 states have internal predecessors, (19057), 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 05:40:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7121 states to 7121 states and 19057 transitions. [2024-11-09 05:40:47,908 INFO L78 Accepts]: Start accepts. Automaton has 7121 states and 19057 transitions. Word has length 31 [2024-11-09 05:40:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:47,908 INFO L471 AbstractCegarLoop]: Abstraction has 7121 states and 19057 transitions. [2024-11-09 05:40:47,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 05:40:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7121 states and 19057 transitions. [2024-11-09 05:40:47,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:40:47,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:47,913 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 05:40:47,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:40:47,914 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:47,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:47,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1929765567, now seen corresponding path program 1 times [2024-11-09 05:40:47,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:47,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722729157] [2024-11-09 05:40:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:47,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:47,979 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 05:40:47,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722729157] [2024-11-09 05:40:47,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722729157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:47,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:47,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:47,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125047731] [2024-11-09 05:40:47,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:47,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:47,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:47,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:47,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:47,985 INFO L87 Difference]: Start difference. First operand 7121 states and 19057 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 05:40:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:48,129 INFO L93 Difference]: Finished difference Result 7436 states and 19901 transitions. [2024-11-09 05:40:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:48,131 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 05:40:48,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:48,180 INFO L225 Difference]: With dead ends: 7436 [2024-11-09 05:40:48,181 INFO L226 Difference]: Without dead ends: 7291 [2024-11-09 05:40:48,185 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 05:40:48,188 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 49 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:48,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 269 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:40:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7291 states. [2024-11-09 05:40:48,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7291 to 7185. [2024-11-09 05:40:48,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7185 states, 7114 states have (on average 2.7031206072533034) internal successors, (19230), 7184 states have internal predecessors, (19230), 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 05:40:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7185 states to 7185 states and 19230 transitions. [2024-11-09 05:40:48,600 INFO L78 Accepts]: Start accepts. Automaton has 7185 states and 19230 transitions. Word has length 34 [2024-11-09 05:40:48,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:48,601 INFO L471 AbstractCegarLoop]: Abstraction has 7185 states and 19230 transitions. [2024-11-09 05:40:48,601 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 05:40:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7185 states and 19230 transitions. [2024-11-09 05:40:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:40:48,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:48,684 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] [2024-11-09 05:40:48,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:40:48,687 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:48,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:48,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1945987969, now seen corresponding path program 1 times [2024-11-09 05:40:48,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:48,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216946545] [2024-11-09 05:40:48,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:48,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:48,746 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 05:40:48,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:48,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216946545] [2024-11-09 05:40:48,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216946545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:48,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:48,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506193408] [2024-11-09 05:40:48,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:48,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:48,749 INFO L87 Difference]: Start difference. First operand 7185 states and 19230 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 05:40:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:48,912 INFO L93 Difference]: Finished difference Result 13783 states and 36790 transitions. [2024-11-09 05:40:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:48,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2024-11-09 05:40:48,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:48,988 INFO L225 Difference]: With dead ends: 13783 [2024-11-09 05:40:48,988 INFO L226 Difference]: Without dead ends: 13482 [2024-11-09 05:40:48,995 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 05:40:48,997 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 99 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:48,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 319 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:40:49,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13482 states. [2024-11-09 05:40:49,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13482 to 7282. [2024-11-09 05:40:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7282 states, 7217 states have (on average 2.700013856172925) internal successors, (19486), 7281 states have internal predecessors, (19486), 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 05:40:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 19486 transitions. [2024-11-09 05:40:49,304 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 19486 transitions. Word has length 35 [2024-11-09 05:40:49,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:49,304 INFO L471 AbstractCegarLoop]: Abstraction has 7282 states and 19486 transitions. [2024-11-09 05:40:49,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 05:40:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 19486 transitions. [2024-11-09 05:40:49,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:40:49,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:49,306 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 05:40:49,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:40:49,307 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:49,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1508393976, now seen corresponding path program 1 times [2024-11-09 05:40:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:49,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817887393] [2024-11-09 05:40:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:49,361 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 05:40:49,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:49,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817887393] [2024-11-09 05:40:49,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817887393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:49,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:49,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:49,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349735708] [2024-11-09 05:40:49,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:49,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:49,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:49,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:49,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:49,364 INFO L87 Difference]: Start difference. First operand 7282 states and 19486 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 05:40:49,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:49,480 INFO L93 Difference]: Finished difference Result 11406 states and 30680 transitions. [2024-11-09 05:40:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:49,481 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 05:40:49,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:49,663 INFO L225 Difference]: With dead ends: 11406 [2024-11-09 05:40:49,663 INFO L226 Difference]: Without dead ends: 11252 [2024-11-09 05:40:49,667 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 05:40:49,668 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 82 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:49,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 276 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:40:49,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2024-11-09 05:40:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 7361. [2024-11-09 05:40:49,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7300 states have (on average 2.6984931506849317) internal successors, (19699), 7360 states have internal predecessors, (19699), 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 05:40:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19699 transitions. [2024-11-09 05:40:49,975 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19699 transitions. Word has length 37 [2024-11-09 05:40:49,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:49,976 INFO L471 AbstractCegarLoop]: Abstraction has 7361 states and 19699 transitions. [2024-11-09 05:40:49,976 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 05:40:49,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19699 transitions. [2024-11-09 05:40:49,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:40:49,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:49,979 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] [2024-11-09 05:40:49,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:40:49,980 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:49,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:49,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1339357577, now seen corresponding path program 1 times [2024-11-09 05:40:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:49,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985316969] [2024-11-09 05:40:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:50,036 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 05:40:50,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:50,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985316969] [2024-11-09 05:40:50,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985316969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:50,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:50,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:40:50,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548523333] [2024-11-09 05:40:50,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:50,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:50,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:50,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:50,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:50,039 INFO L87 Difference]: Start difference. First operand 7361 states and 19699 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 05:40:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:50,222 INFO L93 Difference]: Finished difference Result 7532 states and 20146 transitions. [2024-11-09 05:40:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:50,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2024-11-09 05:40:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:50,263 INFO L225 Difference]: With dead ends: 7532 [2024-11-09 05:40:50,263 INFO L226 Difference]: Without dead ends: 7373 [2024-11-09 05:40:50,266 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 05:40:50,267 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 55 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:50,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 276 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:40:50,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7373 states. [2024-11-09 05:40:50,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7373 to 7316. [2024-11-09 05:40:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7316 states, 7259 states have (on average 2.6965146714423476) internal successors, (19574), 7315 states have internal predecessors, (19574), 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 05:40:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7316 states to 7316 states and 19574 transitions. [2024-11-09 05:40:50,449 INFO L78 Accepts]: Start accepts. Automaton has 7316 states and 19574 transitions. Word has length 39 [2024-11-09 05:40:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:50,451 INFO L471 AbstractCegarLoop]: Abstraction has 7316 states and 19574 transitions. [2024-11-09 05:40:50,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 05:40:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7316 states and 19574 transitions. [2024-11-09 05:40:50,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 05:40:50,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:50,453 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] [2024-11-09 05:40:50,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:40:50,453 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 05:40:50,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash -557722206, now seen corresponding path program 1 times [2024-11-09 05:40:50,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:50,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772597577] [2024-11-09 05:40:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:40:50,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:40:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:40:50,516 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:40:50,516 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:40:50,521 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2024-11-09 05:40:50,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-09 05:40:50,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-09 05:40:50,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-09 05:40:50,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-09 05:40:50,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-09 05:40:50,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2024-11-09 05:40:50,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-09 05:40:50,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-09 05:40:50,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-09 05:40:50,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-09 05:40:50,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-09 05:40:50,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-09 05:40:50,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-09 05:40:50,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-09 05:40:50,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 30 remaining) [2024-11-09 05:40:50,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 30 remaining) [2024-11-09 05:40:50,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-09 05:40:50,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-09 05:40:50,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-09 05:40:50,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-09 05:40:50,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-09 05:40:50,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-09 05:40:50,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-09 05:40:50,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-09 05:40:50,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-09 05:40:50,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-09 05:40:50,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-09 05:40:50,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-09 05:40:50,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-09 05:40:50,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:40:50,536 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:40:50,593 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 05:40:50,593 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:40:50,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:40:50 BasicIcfg [2024-11-09 05:40:50,598 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:40:50,600 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:40:50,600 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:40:50,601 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:40:50,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:40:43" (3/4) ... [2024-11-09 05:40:50,602 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:40:50,665 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:40:50,665 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:40:50,666 INFO L158 Benchmark]: Toolchain (without parser) took 8308.99ms. Allocated memory was 144.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 101.4MB in the beginning and 785.7MB in the end (delta: -684.3MB). Peak memory consumption was 319.7MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,666 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 111.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:40:50,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.91ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 79.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.51ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,667 INFO L158 Benchmark]: Boogie Preprocessor took 43.94ms. Allocated memory is still 144.7MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,667 INFO L158 Benchmark]: RCFGBuilder took 511.54ms. Allocated memory is still 144.7MB. Free memory was 76.2MB in the beginning and 60.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,668 INFO L158 Benchmark]: TraceAbstraction took 6947.28ms. Allocated memory was 144.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 60.4MB in the beginning and 790.9MB in the end (delta: -730.5MB). Peak memory consumption was 275.6MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,668 INFO L158 Benchmark]: Witness Printer took 65.17ms. Allocated memory is still 1.1GB. Free memory was 790.9MB in the beginning and 785.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:40:50,670 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 144.7MB. Free memory was 111.2MB in the beginning and 111.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.91ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 79.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.51ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.94ms. Allocated memory is still 144.7MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.54ms. Allocated memory is still 144.7MB. Free memory was 76.2MB in the beginning and 60.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6947.28ms. Allocated memory was 144.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 60.4MB in the beginning and 790.9MB in the end (delta: -730.5MB). Peak memory consumption was 275.6MB. Max. memory is 16.1GB. * Witness Printer took 65.17ms. Allocated memory is still 1.1GB. Free memory was 790.9MB in the beginning and 785.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 - DataRaceFoundResult [Line: 680]: Data race detected Data race detected The following path leads to a data race: [L674] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L675] 0 int turn; VAL [flag1=0, flag2=0, turn=0] [L676] 0 int x; VAL [flag1=0, flag2=0, turn=0, x=0] [L696] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, turn=0, x=0] [L697] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, t1=-1, turn=0, x=0] [L678] 1 flag1 = 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L679] 1 turn = 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=0, turn=1, x=0] [L698] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, t1=-1, t2=0, turn=1, x=0] [L687] 2 flag2 = 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=1, turn=1, x=0] [L680] 1 flag2==1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=1, turn=1, x=0] [L687] 2 flag2 = 1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=1, turn=1, x=0] [L680] 1 flag2==1 VAL [\old(_)={0:0}, _={0:0}, flag1=1, flag2=1, turn=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [687] and C: flag2==1 [680] - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 678]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 679]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 681]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 680]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: 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. - UnprovableResult [Line: 698]: 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 5 procedures, 227 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 533 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 533 mSDsluCounter, 2252 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 866 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1386 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7361occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 14508 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 05:40:50,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1417b58-365c-42b7-bd28-07c038960645/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