./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c --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_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/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_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/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_12eda951-439d-4cc8-a635-58ff6c5121cc/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 7aea5f8d9182df5a5d01671c1aa4ef829b038428d2f68272ec4ea6e120e3973d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:33:46,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:33:46,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-13 23:33:46,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:33:46,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:33:46,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:33:46,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:33:46,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:33:46,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:33:46,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:33:46,325 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:33:46,325 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:33:46,326 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:33:46,326 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:33:46,327 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:33:46,327 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:33:46,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:33:46,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:33:46,327 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:33:46,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:33:46,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:33:46,331 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:33:46,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:33:46,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:33:46,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:33:46,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:33:46,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:33:46,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:33:46,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:33:46,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:33:46,332 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:33:46,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:33:46,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:33:46,332 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:33:46,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:33:46,333 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_12eda951-439d-4cc8-a635-58ff6c5121cc/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 -> 7aea5f8d9182df5a5d01671c1aa4ef829b038428d2f68272ec4ea6e120e3973d [2024-11-13 23:33:46,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:33:46,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:33:46,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:33:46,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:33:46,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:33:46,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c Unable to find full path for "g++" [2024-11-13 23:33:48,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:33:48,865 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:33:48,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2024-11-13 23:33:48,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/data/e7320ce65/3b5b6e4076144228b6b42d856cff77c9/FLAGd5d134fb0 [2024-11-13 23:33:48,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/data/e7320ce65/3b5b6e4076144228b6b42d856cff77c9 [2024-11-13 23:33:48,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:33:48,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:33:48,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:33:48,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:33:48,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:33:48,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:48" (1/1) ... [2024-11-13 23:33:48,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340ec6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:48, skipping insertion in model container [2024-11-13 23:33:48,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:48" (1/1) ... [2024-11-13 23:33:48,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:33:49,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:33:49,193 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:33:49,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:33:49,269 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:33:49,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49 WrapperNode [2024-11-13 23:33:49,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:33:49,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:33:49,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:33:49,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:33:49,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,334 INFO L138 Inliner]: procedures = 23, calls = 27, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 191 [2024-11-13 23:33:49,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:33:49,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:33:49,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:33:49,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:33:49,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:33:49,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:33:49,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:33:49,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:33:49,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (1/1) ... [2024-11-13 23:33:49,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:33:49,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:49,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:33:49,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12eda951-439d-4cc8-a635-58ff6c5121cc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:33:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:33:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 23:33:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 23:33:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 23:33:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 23:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 23:33:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 23:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:33:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:33:49,491 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 23:33:49,642 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:33:49,645 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:33:50,439 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 23:33:50,439 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:33:50,460 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:33:50,460 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-13 23:33:50,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:50 BoogieIcfgContainer [2024-11-13 23:33:50,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:33:50,463 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:33:50,463 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:33:50,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:33:50,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:33:48" (1/3) ... [2024-11-13 23:33:50,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5040b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:33:50, skipping insertion in model container [2024-11-13 23:33:50,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:49" (2/3) ... [2024-11-13 23:33:50,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5040b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:33:50, skipping insertion in model container [2024-11-13 23:33:50,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:50" (3/3) ... [2024-11-13 23:33:50,470 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2024-11-13 23:33:50,484 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:33:50,485 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-parray-copy.wvr.c that has 4 procedures, 347 locations, 1 initial locations, 5 loop locations, and 32 error locations. [2024-11-13 23:33:50,485 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 23:33:50,643 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 23:33:50,705 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 356 places, 365 transitions, 751 flow [2024-11-13 23:33:57,247 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 161268 states, 161001 states have (on average 3.7085049161185335) internal successors, (597073), 161267 states have internal predecessors, (597073), 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) [2024-11-13 23:33:57,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:33:57,286 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;@4c04a248, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:33:57,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-13 23:33:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 161268 states, 161001 states have (on average 3.7085049161185335) internal successors, (597073), 161267 states have internal predecessors, (597073), 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) [2024-11-13 23:33:57,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 23:33:57,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:57,460 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] [2024-11-13 23:33:57,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-13 23:33:57,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:57,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1889134755, now seen corresponding path program 1 times [2024-11-13 23:33:57,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:57,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383009311] [2024-11-13 23:33:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:33:57,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:57,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383009311] [2024-11-13 23:33:57,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383009311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:57,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:57,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:33:57,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575952200] [2024-11-13 23:33:57,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:57,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:33:57,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:58,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:33:58,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:33:58,399 INFO L87 Difference]: Start difference. First operand has 161268 states, 161001 states have (on average 3.7085049161185335) internal successors, (597073), 161267 states have internal predecessors, (597073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-13 23:34:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:03,761 INFO L93 Difference]: Finished difference Result 322491 states and 1194100 transitions. [2024-11-13 23:34:03,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:34:03,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2024-11-13 23:34:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:06,102 INFO L225 Difference]: With dead ends: 322491 [2024-11-13 23:34:06,102 INFO L226 Difference]: Without dead ends: 161261 [2024-11-13 23:34:06,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:06,409 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 2 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:06,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 631 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:34:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161261 states. [2024-11-13 23:34:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161261 to 161261. [2024-11-13 23:34:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161261 states, 160995 states have (on average 3.6288828845616323) internal successors, (584232), 161260 states have internal predecessors, (584232), 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) [2024-11-13 23:34:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161261 states to 161261 states and 584232 transitions. [2024-11-13 23:34:15,606 INFO L78 Accepts]: Start accepts. Automaton has 161261 states and 584232 transitions. Word has length 21 [2024-11-13 23:34:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:15,607 INFO L471 AbstractCegarLoop]: Abstraction has 161261 states and 584232 transitions. [2024-11-13 23:34:15,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-11-13 23:34:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 161261 states and 584232 transitions. [2024-11-13 23:34:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:34:15,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:15,610 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] [2024-11-13 23:34:15,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:34:15,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-13 23:34:15,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:15,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2131057006, now seen corresponding path program 1 times [2024-11-13 23:34:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:15,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140541866] [2024-11-13 23:34:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:34:15,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:15,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140541866] [2024-11-13 23:34:15,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140541866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:15,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:34:15,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:34:15,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344494554] [2024-11-13 23:34:15,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:15,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:34:15,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:34:15,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:15,678 INFO L87 Difference]: Start difference. First operand 161261 states and 584232 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:34:18,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:18,374 INFO L93 Difference]: Finished difference Result 161261 states and 584232 transitions. [2024-11-13 23:34:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:34:18,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-13 23:34:18,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:20,005 INFO L225 Difference]: With dead ends: 161261 [2024-11-13 23:34:20,005 INFO L226 Difference]: Without dead ends: 161260 [2024-11-13 23:34:20,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:20,084 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 2 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:20,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 611 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:34:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161260 states. [2024-11-13 23:34:24,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161260 to 161260. [2024-11-13 23:34:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161260 states, 160995 states have (on average 3.6288766731886084) internal successors, (584231), 161259 states have internal predecessors, (584231), 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) [2024-11-13 23:34:27,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161260 states to 161260 states and 584231 transitions. [2024-11-13 23:34:27,345 INFO L78 Accepts]: Start accepts. Automaton has 161260 states and 584231 transitions. Word has length 29 [2024-11-13 23:34:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:27,345 INFO L471 AbstractCegarLoop]: Abstraction has 161260 states and 584231 transitions. [2024-11-13 23:34:27,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:34:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 161260 states and 584231 transitions. [2024-11-13 23:34:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:34:27,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:27,347 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] [2024-11-13 23:34:27,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:34:27,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-13 23:34:27,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:27,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1602596897, now seen corresponding path program 1 times [2024-11-13 23:34:27,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:27,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905769774] [2024-11-13 23:34:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:27,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:34:27,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:27,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905769774] [2024-11-13 23:34:27,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905769774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:27,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:34:27,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:34:27,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823655842] [2024-11-13 23:34:27,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:27,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:34:27,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:27,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:34:27,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:27,414 INFO L87 Difference]: Start difference. First operand 161260 states and 584231 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-13 23:34:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:30,396 INFO L93 Difference]: Finished difference Result 161260 states and 584231 transitions. [2024-11-13 23:34:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:34:30,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2024-11-13 23:34:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:32,238 INFO L225 Difference]: With dead ends: 161260 [2024-11-13 23:34:32,238 INFO L226 Difference]: Without dead ends: 153005 [2024-11-13 23:34:32,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:34:32,297 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 281 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:32,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 335 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:34:32,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153005 states.