./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.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_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/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_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/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_d6b6e792-0afc-49ef-8933-d9b4691abc2c/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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:22:15,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:22:15,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 07:22:15,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:22:15,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:22:15,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:22:15,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:22:15,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:22:15,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:22:15,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:22:15,974 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:22:15,975 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:22:15,975 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:22:15,975 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:22:15,976 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:22:15,978 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:22:15,978 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:22:15,979 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:22:15,979 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:22:15,979 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:22:15,980 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:22:15,984 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:22:15,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:22:15,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:22:15,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:22:15,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:22:15,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:22:15,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:22:15,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:22:15,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:22:15,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:22:15,987 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:22:15,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:22:15,988 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:22:15,988 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:22:15,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:22:15,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:22:15,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:22:15,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:22:15,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:22:15,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:22:15,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:22:15,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:22:15,992 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:22:15,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:22:15,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:22:15,993 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:22:15,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:22:15,994 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_d6b6e792-0afc-49ef-8933-d9b4691abc2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2024-11-09 07:22:16,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:22:16,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:22:16,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:22:16,368 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:22:16,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:22:16,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i Unable to find full path for "g++" [2024-11-09 07:22:18,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:22:18,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:22:18,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2024-11-09 07:22:18,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/data/72b50efcf/377ce39b09de4b15963b82be0ddbff58/FLAG06b836f2a [2024-11-09 07:22:18,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/data/72b50efcf/377ce39b09de4b15963b82be0ddbff58 [2024-11-09 07:22:18,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:22:18,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:22:18,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:22:18,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:22:18,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:22:18,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:22:18" (1/1) ... [2024-11-09 07:22:18,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0a77cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:18, skipping insertion in model container [2024-11-09 07:22:18,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:22:18" (1/1) ... [2024-11-09 07:22:18,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:22:19,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:22:19,446 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:22:19,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:22:19,577 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:22:19,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19 WrapperNode [2024-11-09 07:22:19,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:22:19,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:22:19,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:22:19,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:22:19,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,693 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 896 [2024-11-09 07:22:19,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:22:19,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:22:19,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:22:19,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:22:19,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:22:19,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:22:19,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:22:19,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:22:19,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (1/1) ... [2024-11-09 07:22:19,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:22:19,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:19,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:22:19,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:22:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:22:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:22:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 07:22:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-09 07:22:19,954 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-09 07:22:19,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:22:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:22:19,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:22:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:22:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:22:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:22:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 07:22:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:22:19,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:22:19,960 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 07:22:20,212 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:22:20,215 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:22:21,787 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:22:21,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:22:21,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:22:21,860 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 07:22:21,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:22:21 BoogieIcfgContainer [2024-11-09 07:22:21,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:22:21,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:22:21,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:22:21,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:22:21,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:22:18" (1/3) ... [2024-11-09 07:22:21,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f339df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:22:21, skipping insertion in model container [2024-11-09 07:22:21,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:22:19" (2/3) ... [2024-11-09 07:22:21,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f339df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:22:21, skipping insertion in model container [2024-11-09 07:22:21,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:22:21" (3/3) ... [2024-11-09 07:22:21,871 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2024-11-09 07:22:21,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:22:21,894 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2024-11-09 07:22:21,894 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:22:22,171 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 07:22:22,242 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 993 places, 1081 transitions, 2169 flow [2024-11-09 07:22:27,209 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 182319 states, 180839 states have (on average 2.205835024524577) internal successors, (398901), 182318 states have internal predecessors, (398901), 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 07:22:27,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:22:27,279 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;@6ce3d852, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:22:27,279 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-11-09 07:22:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 182319 states, 180839 states have (on average 2.205835024524577) internal successors, (398901), 182318 states have internal predecessors, (398901), 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 07:22:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 07:22:27,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:27,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:27,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 07:22:27,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:27,616 INFO L85 PathProgramCache]: Analyzing trace with hash 946979533, now seen corresponding path program 1 times [2024-11-09 07:22:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:27,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946629844] [2024-11-09 07:22:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:29,050 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 07:22:29,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:29,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946629844] [2024-11-09 07:22:29,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946629844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:29,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:29,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:22:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990539352] [2024-11-09 07:22:29,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:29,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:22:29,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:29,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:22:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:22:29,349 INFO L87 Difference]: Start difference. First operand has 182319 states, 180839 states have (on average 2.205835024524577) internal successors, (398901), 182318 states have internal predecessors, (398901), 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 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 07:22:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:34,710 INFO L93 Difference]: Finished difference Result 353661 states and 774879 transitions. [2024-11-09 07:22:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:22:34,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2024-11-09 07:22:34,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:35,895 INFO L225 Difference]: With dead ends: 353661 [2024-11-09 07:22:35,895 INFO L226 Difference]: Without dead ends: 169041 [2024-11-09 07:22:36,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:22:36,676 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 3 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:36,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2114 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 07:22:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169041 states. [2024-11-09 07:22:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169041 to 169041. [2024-11-09 07:22:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169041 states, 166620 states have (on average 2.0893530188452765) internal successors, (348128), 169040 states have internal predecessors, (348128), 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 07:22:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169041 states to 169041 states and 348128 transitions. [2024-11-09 07:22:42,833 INFO L78 Accepts]: Start accepts. Automaton has 169041 states and 348128 transitions. Word has length 46 [2024-11-09 07:22:42,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:42,834 INFO L471 AbstractCegarLoop]: Abstraction has 169041 states and 348128 transitions. [2024-11-09 07:22:42,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 07:22:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 169041 states and 348128 transitions. [2024-11-09 07:22:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 07:22:42,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:42,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:42,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:22:42,839 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 07:22:42,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:42,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1544384127, now seen corresponding path program 1 times [2024-11-09 07:22:42,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:42,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648566711] [2024-11-09 07:22:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:42,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:42,965 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 07:22:42,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:42,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648566711] [2024-11-09 07:22:42,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648566711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:42,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:42,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:22:42,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850073843] [2024-11-09 07:22:42,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:42,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:22:42,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:22:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:22:42,972 INFO L87 Difference]: Start difference. First operand 169041 states and 348128 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 07:22:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:45,625 INFO L93 Difference]: Finished difference Result 338044 states and 696218 transitions. [2024-11-09 07:22:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:22:45,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2024-11-09 07:22:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:47,420 INFO L225 Difference]: With dead ends: 338044 [2024-11-09 07:22:47,420 INFO L226 Difference]: Without dead ends: 169071 [2024-11-09 07:22:47,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:22:47,756 INFO L432 NwaCegarLoop]: 940 mSDtfsCounter, 29 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:47,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1874 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:22:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169071 states. [2024-11-09 07:22:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169071 to 169043. [2024-11-09 07:22:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169043 states, 166622 states have (on average 2.089339943104752) internal successors, (348130), 169042 states have internal predecessors, (348130), 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 07:22:52,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169043 states to 169043 states and 348130 transitions. [2024-11-09 07:22:53,313 INFO L78 Accepts]: Start accepts. Automaton has 169043 states and 348130 transitions. Word has length 51 [2024-11-09 07:22:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:53,314 INFO L471 AbstractCegarLoop]: Abstraction has 169043 states and 348130 transitions. [2024-11-09 07:22:53,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 07:22:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 169043 states and 348130 transitions. [2024-11-09 07:22:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 07:22:53,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:53,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:53,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:22:53,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 07:22:53,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1937023945, now seen corresponding path program 1 times [2024-11-09 07:22:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:53,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295364277] [2024-11-09 07:22:53,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:53,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:53,866 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 07:22:53,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:53,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295364277] [2024-11-09 07:22:53,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295364277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:53,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:53,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:22:53,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564117356] [2024-11-09 07:22:53,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:53,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:22:53,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:53,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:22:53,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:22:53,871 INFO L87 Difference]: Start difference. First operand 169043 states and 348130 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 07:22:56,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:56,180 INFO L93 Difference]: Finished difference Result 169043 states and 348130 transitions. [2024-11-09 07:22:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:22:56,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2024-11-09 07:22:56,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:57,281 INFO L225 Difference]: With dead ends: 169043 [2024-11-09 07:22:57,282 INFO L226 Difference]: Without dead ends: 169042 [2024-11-09 07:22:57,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:22:57,333 INFO L432 NwaCegarLoop]: 959 mSDtfsCounter, 1 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:57,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2095 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:22:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169042 states. [2024-11-09 07:23:00,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169042 to 169042. [2024-11-09 07:23:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169042 states, 166622 states have (on average 2.0893339414963212) internal successors, (348129), 169041 states have internal predecessors, (348129), 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 07:23:02,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169042 states to 169042 states and 348129 transitions. [2024-11-09 07:23:02,742 INFO L78 Accepts]: Start accepts. Automaton has 169042 states and 348129 transitions. Word has length 54 [2024-11-09 07:23:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:02,743 INFO L471 AbstractCegarLoop]: Abstraction has 169042 states and 348129 transitions. [2024-11-09 07:23:02,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 07:23:02,744 INFO L276 IsEmpty]: Start isEmpty. Operand 169042 states and 348129 transitions. [2024-11-09 07:23:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 07:23:02,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:02,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:23:02,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:23:02,747 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 07:23:02,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2122011544, now seen corresponding path program 1 times [2024-11-09 07:23:02,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:02,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850127081] [2024-11-09 07:23:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:03,348 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 07:23:03,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:23:03,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850127081] [2024-11-09 07:23:03,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850127081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:23:03,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:23:03,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:23:03,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710938475] [2024-11-09 07:23:03,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:23:03,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:23:03,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:23:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:23:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:23:03,352 INFO L87 Difference]: Start difference. First operand 169042 states and 348129 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 07:23:05,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:05,921 INFO L93 Difference]: Finished difference Result 169042 states and 348129 transitions. [2024-11-09 07:23:05,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:23:05,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 62 [2024-11-09 07:23:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:06,883 INFO L225 Difference]: With dead ends: 169042 [2024-11-09 07:23:06,883 INFO L226 Difference]: Without dead ends: 169041 [2024-11-09 07:23:06,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:23:06,926 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 2 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:06,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2094 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 07:23:07,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169041 states. [2024-11-09 07:23:10,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169041 to 169041. [2024-11-09 07:23:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169041 states, 166622 states have (on average 2.08932793988789) internal successors, (348128), 169040 states have internal predecessors, (348128), 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 07:23:11,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169041 states to 169041 states and 348128 transitions. [2024-11-09 07:23:11,463 INFO L78 Accepts]: Start accepts. Automaton has 169041 states and 348128 transitions. Word has length 62 [2024-11-09 07:23:11,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:11,464 INFO L471 AbstractCegarLoop]: Abstraction has 169041 states and 348128 transitions. [2024-11-09 07:23:11,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 07:23:11,464 INFO L276 IsEmpty]: Start isEmpty. Operand 169041 states and 348128 transitions. [2024-11-09 07:23:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 07:23:11,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:11,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:23:11,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:23:11,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2024-11-09 07:23:11,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:11,468 INFO L85 PathProgramCache]: Analyzing trace with hash 109784653, now seen corresponding path program 1 times [2024-11-09 07:23:11,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:11,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451958258] [2024-11-09 07:23:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:11,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:23:11,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:23:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451958258] [2024-11-09 07:23:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451958258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:23:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621814665] [2024-11-09 07:23:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:11,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:11,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:23:11,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:23:11,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b6e792-0afc-49ef-8933-d9b4691abc2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:23:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:11,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:23:11,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:23:11,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:12,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:23:12,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621814665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:12,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [692129430] [2024-11-09 07:23:12,093 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 07:23:12,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:23:12,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-09 07:23:12,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263715698] [2024-11-09 07:23:12,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:23:12,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:23:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:23:12,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:23:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:23:12,106 INFO L87 Difference]: Start difference. First operand 169041 states and 348128 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 07:23:14,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:14,845 INFO L93 Difference]: Finished difference Result 338071 states and 696246 transitions. [2024-11-09 07:23:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:23:14,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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 80 [2024-11-09 07:23:14,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted.