./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E --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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:50:01,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:50:01,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-14 05:50:01,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:50:01,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:50:01,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:50:01,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:50:01,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:50:01,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:50:01,761 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:50:01,761 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:50:01,762 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:50:01,762 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:50:01,762 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:50:01,762 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:50:01,762 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:50:01,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:50:01,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:50:01,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:50:01,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:50:01,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:50:01,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:50:01,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:50:01,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:50:01,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:50:01,765 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-14 05:50:01,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:50:01,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:50:01,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:50:01,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:50:01,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:50:01,767 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:50:01,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:50:01,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:50:01,767 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:50:01,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:50:01,767 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E 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 -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2024-11-14 05:50:02,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:50:02,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:50:02,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:50:02,050 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:50:02,050 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:50:02,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i Unable to find full path for "g++" [2024-11-14 05:50:03,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:50:04,181 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:50:04,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2024-11-14 05:50:04,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/data/363ef79c0/4743c29009db4bcb94e2cc013989b56f/FLAGf71ac32f3 [2024-11-14 05:50:04,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/data/363ef79c0/4743c29009db4bcb94e2cc013989b56f [2024-11-14 05:50:04,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:50:04,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:50:04,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:50:04,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:50:04,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:50:04,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:50:04" (1/1) ... [2024-11-14 05:50:04,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1a904a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:04, skipping insertion in model container [2024-11-14 05:50:04,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:50:04" (1/1) ... [2024-11-14 05:50:04,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:50:04,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:50:04,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:50:05,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:50:05,096 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:50:05,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05 WrapperNode [2024-11-14 05:50:05,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:50:05,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:50:05,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:50:05,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:50:05,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,232 INFO L138 Inliner]: procedures = 174, calls = 86, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 865 [2024-11-14 05:50:05,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:50:05,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:50:05,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:50:05,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:50:05,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:50:05,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:50:05,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:50:05,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:50:05,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (1/1) ... [2024-11-14 05:50:05,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:50:05,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:50:05,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:50:05,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-14 05:50:05,440 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:50:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-14 05:50:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:50:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:50:05,443 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 05:50:05,679 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:50:05,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:50:07,410 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 05:50:07,411 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:50:07,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:50:07,483 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-14 05:50:07,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:50:07 BoogieIcfgContainer [2024-11-14 05:50:07,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:50:07,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:50:07,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:50:07,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:50:07,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:50:04" (1/3) ... [2024-11-14 05:50:07,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e01e6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:50:07, skipping insertion in model container [2024-11-14 05:50:07,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:50:05" (2/3) ... [2024-11-14 05:50:07,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e01e6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:50:07, skipping insertion in model container [2024-11-14 05:50:07,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:50:07" (3/3) ... [2024-11-14 05:50:07,493 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2024-11-14 05:50:07,508 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:50:07,510 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_2t.i that has 2 procedures, 941 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2024-11-14 05:50:07,510 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 05:50:07,785 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-14 05:50:07,848 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-14 05:50:13,444 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 176938 states, 175460 states have (on average 2.209432349253391) internal successors, (387667), 176937 states have internal predecessors, (387667), 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) [2024-11-14 05:50:13,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:50:13,767 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;@5ae803d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:50:13,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-11-14 05:50:14,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 176938 states, 175460 states have (on average 2.209432349253391) internal successors, (387667), 176937 states have internal predecessors, (387667), 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) [2024-11-14 05:50:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 05:50:14,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:14,103 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] [2024-11-14 05:50:14,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-14 05:50:14,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:14,111 INFO L85 PathProgramCache]: Analyzing trace with hash -944008861, now seen corresponding path program 1 times [2024-11-14 05:50:14,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:14,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923864062] [2024-11-14 05:50:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:15,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:15,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923864062] [2024-11-14 05:50:15,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923864062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:15,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:15,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:50:15,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113646553] [2024-11-14 05:50:15,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:15,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:50:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:15,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:50:15,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:50:15,665 INFO L87 Difference]: Start difference. First operand has 176938 states, 175460 states have (on average 2.209432349253391) internal successors, (387667), 176937 states have internal predecessors, (387667), 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 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-14 05:50:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:19,813 INFO L93 Difference]: Finished difference Result 343079 states and 752757 transitions. [2024-11-14 05:50:19,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:50:19,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2024-11-14 05:50:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:20,922 INFO L225 Difference]: With dead ends: 343079 [2024-11-14 05:50:20,923 INFO L226 Difference]: Without dead ends: 163910 [2024-11-14 05:50:21,415 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 [2024-11-14 05:50:21,418 INFO L432 NwaCegarLoop]: 906 mSDtfsCounter, 3 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:21,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1434 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:50:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163910 states. [2024-11-14 05:50:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163910 to 163910. [2024-11-14 05:50:25,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163910 states, 161491 states have (on average 2.0647961805921073) internal successors, (333446), 163909 states have internal predecessors, (333446), 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) [2024-11-14 05:50:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163910 states to 163910 states and 333446 transitions. [2024-11-14 05:50:26,967 INFO L78 Accepts]: Start accepts. Automaton has 163910 states and 333446 transitions. Word has length 40 [2024-11-14 05:50:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:26,968 INFO L471 AbstractCegarLoop]: Abstraction has 163910 states and 333446 transitions. [2024-11-14 05:50:26,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-14 05:50:26,968 INFO L276 IsEmpty]: Start isEmpty. Operand 163910 states and 333446 transitions. [2024-11-14 05:50:26,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:50:26,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:26,970 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] [2024-11-14 05:50:26,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:50:26,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-14 05:50:26,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:26,971 INFO L85 PathProgramCache]: Analyzing trace with hash -133257823, now seen corresponding path program 1 times [2024-11-14 05:50:26,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:26,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131367010] [2024-11-14 05:50:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:26,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:27,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:27,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131367010] [2024-11-14 05:50:27,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131367010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:27,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:27,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:50:27,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871165890] [2024-11-14 05:50:27,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:27,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:50:27,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:27,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:50:27,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:50:27,072 INFO L87 Difference]: Start difference. First operand 163910 states and 333446 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2024-11-14 05:50:29,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:29,499 INFO L93 Difference]: Finished difference Result 327787 states and 666859 transitions. [2024-11-14 05:50:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:50:29,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 [2024-11-14 05:50:29,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:30,655 INFO L225 Difference]: With dead ends: 327787 [2024-11-14 05:50:30,655 INFO L226 Difference]: Without dead ends: 163939 [2024-11-14 05:50:30,872 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 [2024-11-14 05:50:30,872 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 28 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:30,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1763 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:50:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163939 states. [2024-11-14 05:50:33,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163939 to 163911. [2024-11-14 05:50:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163911 states, 161492 states have (on average 2.06478958710029) internal successors, (333447), 163910 states have internal predecessors, (333447), 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) [2024-11-14 05:50:34,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163911 states to 163911 states and 333447 transitions. [2024-11-14 05:50:35,254 INFO L78 Accepts]: Start accepts. Automaton has 163911 states and 333447 transitions. Word has length 46 [2024-11-14 05:50:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:35,255 INFO L471 AbstractCegarLoop]: Abstraction has 163911 states and 333447 transitions. [2024-11-14 05:50:35,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2024-11-14 05:50:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 163911 states and 333447 transitions. [2024-11-14 05:50:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-14 05:50:35,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:35,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:50:35,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:50:35,259 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-14 05:50:35,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:35,260 INFO L85 PathProgramCache]: Analyzing trace with hash 680846718, now seen corresponding path program 1 times [2024-11-14 05:50:35,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:35,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044790045] [2024-11-14 05:50:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:35,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:35,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044790045] [2024-11-14 05:50:35,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044790045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:35,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:35,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:50:35,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940518280] [2024-11-14 05:50:35,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:35,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:50:35,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:35,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:50:35,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:50:35,838 INFO L87 Difference]: Start difference. First operand 163911 states and 333447 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-14 05:50:37,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:37,823 INFO L93 Difference]: Finished difference Result 163911 states and 333447 transitions. [2024-11-14 05:50:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:50:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-14 05:50:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:38,778 INFO L225 Difference]: With dead ends: 163911 [2024-11-14 05:50:38,778 INFO L226 Difference]: Without dead ends: 163910 [2024-11-14 05:50:38,834 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 [2024-11-14 05:50:38,835 INFO L432 NwaCegarLoop]: 902 mSDtfsCounter, 3 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:38,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1427 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:50:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163910 states. [2024-11-14 05:50:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163910 to 163910. [2024-11-14 05:50:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163910 states, 161492 states have (on average 2.0647833948430883) internal successors, (333446), 163909 states have internal predecessors, (333446), 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) [2024-11-14 05:50:42,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163910 states to 163910 states and 333446 transitions. [2024-11-14 05:50:42,799 INFO L78 Accepts]: Start accepts. Automaton has 163910 states and 333446 transitions. Word has length 48 [2024-11-14 05:50:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:42,799 INFO L471 AbstractCegarLoop]: Abstraction has 163910 states and 333446 transitions. [2024-11-14 05:50:42,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-14 05:50:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 163910 states and 333446 transitions. [2024-11-14 05:50:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:50:42,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:42,800 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] [2024-11-14 05:50:42,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:50:42,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-14 05:50:42,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1025946223, now seen corresponding path program 1 times [2024-11-14 05:50:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827538376] [2024-11-14 05:50:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:43,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:43,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827538376] [2024-11-14 05:50:43,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827538376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:43,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:43,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:50:43,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200936643] [2024-11-14 05:50:43,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:43,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:50:43,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:43,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:50:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:50:43,351 INFO L87 Difference]: Start difference. First operand 163910 states and 333446 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-14 05:50:45,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:45,553 INFO L93 Difference]: Finished difference Result 163910 states and 333446 transitions. [2024-11-14 05:50:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:50:45,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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 56 [2024-11-14 05:50:45,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:46,396 INFO L225 Difference]: With dead ends: 163910 [2024-11-14 05:50:46,397 INFO L226 Difference]: Without dead ends: 163909 [2024-11-14 05:50:46,470 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 [2024-11-14 05:50:46,471 INFO L432 NwaCegarLoop]: 901 mSDtfsCounter, 2 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:46,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1951 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 05:50:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163909 states. [2024-11-14 05:50:49,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163909 to 163909. [2024-11-14 05:50:49,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163909 states, 161492 states have (on average 2.0647772025858866) internal successors, (333445), 163908 states have internal predecessors, (333445), 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) [2024-11-14 05:50:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163909 states to 163909 states and 333445 transitions. [2024-11-14 05:50:50,479 INFO L78 Accepts]: Start accepts. Automaton has 163909 states and 333445 transitions. Word has length 56 [2024-11-14 05:50:50,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:50,480 INFO L471 AbstractCegarLoop]: Abstraction has 163909 states and 333445 transitions. [2024-11-14 05:50:50,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-14 05:50:50,480 INFO L276 IsEmpty]: Start isEmpty. Operand 163909 states and 333445 transitions. [2024-11-14 05:50:50,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 05:50:50,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:50,481 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] [2024-11-14 05:50:50,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:50:50,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-14 05:50:50,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:50,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1086197344, now seen corresponding path program 1 times [2024-11-14 05:50:50,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:50,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121719320] [2024-11-14 05:50:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:50,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:50,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:50,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121719320] [2024-11-14 05:50:50,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121719320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:50:50,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995323179] [2024-11-14 05:50:50,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:50,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:50:50,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:50:50,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:50:50,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9387e871-51d0-45a3-93fb-002e20ec2290/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:50:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:50,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:50:50,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:50:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:50,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:50:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:50,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995323179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:50:50,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [34466951] [2024-11-14 05:50:50,995 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:168) 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) [2024-11-14 05:50:50,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:50:50,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-14 05:50:50,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157889155] [2024-11-14 05:50:50,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:50:51,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:50:51,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:51,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:50:51,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:50:51,000 INFO L87 Difference]: Start difference. First operand 163909 states and 333445 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-11-14 05:50:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:53,383 INFO L93 Difference]: Finished difference Result 327785 states and 666857 transitions. [2024-11-14 05:50:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:50:53,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 74 [2024-11-14 05:50:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:54,152 INFO L225 Difference]: With dead ends: 327785 [2024-11-14 05:50:54,152 INFO L226 Difference]: Without dead ends: 163937 [2024-11-14 05:50:54,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:50:54,462 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 26 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:54,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2636 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:50:54,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163937 states.