./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/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_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d869d36578fc433cb3bcbc293e270e4f10048025e6637a1ca792146288a88a6e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:50:12,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:50:12,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:50:12,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:50:12,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:50:12,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:50:12,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:50:12,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:50:12,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:50:12,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:50:12,264 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:50:12,265 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:50:12,265 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:50:12,265 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:50:12,265 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:50:12,265 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:50:12,265 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:50:12,265 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:50:12,266 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:50:12,266 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:50:12,266 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:50:12,266 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:50:12,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:50:12,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:50:12,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:50:12,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:50:12,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:50:12,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:50:12,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:50:12,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:50:12,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:50:12,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:50:12,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:50:12,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:50:12,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:50:12,269 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:50:12,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:50:12,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:50:12,270 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:50:12,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:50:12,270 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_7f0c87b8-0664-48ec-af00-526d00b766dc/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 ! call(reach_error())) ) 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 -> d869d36578fc433cb3bcbc293e270e4f10048025e6637a1ca792146288a88a6e [2024-11-14 02:50:12,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:50:12,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:50:12,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:50:12,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:50:12,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:50:12,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-14 02:50:14,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:50:14,962 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:50:14,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-14 02:50:14,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/data/fd7b3a5d5/2e3ae1d185ed43678c9052df23fca175/FLAG50c33242c [2024-11-14 02:50:15,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/data/fd7b3a5d5/2e3ae1d185ed43678c9052df23fca175 [2024-11-14 02:50:15,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:50:15,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:50:15,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:50:15,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:50:15,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:50:15,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:50:15" (1/1) ... [2024-11-14 02:50:15,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc93495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:15, skipping insertion in model container [2024-11-14 02:50:15,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:50:15" (1/1) ... [2024-11-14 02:50:15,134 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:50:15,721 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24323,24336] [2024-11-14 02:50:15,770 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28161,28174] [2024-11-14 02:50:15,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:50:15,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:50:16,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24323,24336] [2024-11-14 02:50:16,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28161,28174] [2024-11-14 02:50:16,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:50:16,264 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:50:16,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16 WrapperNode [2024-11-14 02:50:16,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:50:16,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:50:16,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:50:16,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:50:16,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,396 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2483 [2024-11-14 02:50:16,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:50:16,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:50:16,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:50:16,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:50:16,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:50:16,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:50:16,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:50:16,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:50:16,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (1/1) ... [2024-11-14 02:50:16,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:50:16,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:50:16,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:50:16,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0c87b8-0664-48ec-af00-526d00b766dc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:50:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:50:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:50:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:50:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:50:16,826 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:50:16,829 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:50:19,753 INFO L? ?]: Removed 164 outVars from TransFormulas that were not future-live. [2024-11-14 02:50:19,753 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:50:20,675 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:50:20,676 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 02:50:20,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:50:20 BoogieIcfgContainer [2024-11-14 02:50:20,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:50:20,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:50:20,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:50:20,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:50:20,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:50:15" (1/3) ... [2024-11-14 02:50:20,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78943707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:50:20, skipping insertion in model container [2024-11-14 02:50:20,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:50:16" (2/3) ... [2024-11-14 02:50:20,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78943707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:50:20, skipping insertion in model container [2024-11-14 02:50:20,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:50:20" (3/3) ... [2024-11-14 02:50:20,687 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-14 02:50:20,710 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:50:20,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c that has 1 procedures, 490 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 02:50:20,815 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:50:20,833 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;@3690a047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:50:20,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 02:50:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 490 states, 487 states have (on average 1.7166324435318274) internal successors, (836), 489 states have internal predecessors, (836), 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 02:50:20,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-14 02:50:20,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:20,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:20,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:20,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:20,877 INFO L85 PathProgramCache]: Analyzing trace with hash -974460955, now seen corresponding path program 1 times [2024-11-14 02:50:20,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:20,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774392025] [2024-11-14 02:50:20,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:23,520 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 02:50:23,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:23,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774392025] [2024-11-14 02:50:23,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774392025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:23,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:23,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013106642] [2024-11-14 02:50:23,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:23,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:50:23,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:23,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:50:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:23,564 INFO L87 Difference]: Start difference. First operand has 490 states, 487 states have (on average 1.7166324435318274) internal successors, (836), 489 states have internal predecessors, (836), 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 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 02:50:24,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:24,534 INFO L93 Difference]: Finished difference Result 2378 states and 4069 transitions. [2024-11-14 02:50:24,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:24,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 210 [2024-11-14 02:50:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:24,574 INFO L225 Difference]: With dead ends: 2378 [2024-11-14 02:50:24,576 INFO L226 Difference]: Without dead ends: 1891 [2024-11-14 02:50:24,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:24,590 INFO L432 NwaCegarLoop]: 1282 mSDtfsCounter, 2527 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:24,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2527 Valid, 3302 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 02:50:24,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-14 02:50:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 936. [2024-11-14 02:50:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 934 states have (on average 1.4089935760171306) internal successors, (1316), 935 states have internal predecessors, (1316), 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 02:50:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1316 transitions. [2024-11-14 02:50:24,773 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1316 transitions. Word has length 210 [2024-11-14 02:50:24,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:24,774 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1316 transitions. [2024-11-14 02:50:24,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 02:50:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1316 transitions. [2024-11-14 02:50:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-14 02:50:24,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:24,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:24,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:50:24,787 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:24,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash -262456165, now seen corresponding path program 1 times [2024-11-14 02:50:24,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:24,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306860890] [2024-11-14 02:50:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:25,293 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 02:50:25,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:25,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306860890] [2024-11-14 02:50:25,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306860890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:25,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:25,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:25,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092828396] [2024-11-14 02:50:25,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:25,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:50:25,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:25,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:50:25,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:50:25,301 INFO L87 Difference]: Start difference. First operand 936 states and 1316 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 02:50:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:25,680 INFO L93 Difference]: Finished difference Result 2655 states and 3710 transitions. [2024-11-14 02:50:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:50:25,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 212 [2024-11-14 02:50:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:25,689 INFO L225 Difference]: With dead ends: 2655 [2024-11-14 02:50:25,689 INFO L226 Difference]: Without dead ends: 1840 [2024-11-14 02:50:25,691 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 02:50:25,692 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 567 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:25,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1816 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2024-11-14 02:50:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1819. [2024-11-14 02:50:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1817 states have (on average 1.407264722069345) internal successors, (2557), 1818 states have internal predecessors, (2557), 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 02:50:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2557 transitions. [2024-11-14 02:50:25,790 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2557 transitions. Word has length 212 [2024-11-14 02:50:25,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:25,792 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2557 transitions. [2024-11-14 02:50:25,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 02:50:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2557 transitions. [2024-11-14 02:50:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-14 02:50:25,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:25,803 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:25,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:50:25,803 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:25,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash 995998138, now seen corresponding path program 1 times [2024-11-14 02:50:25,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:25,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450743080] [2024-11-14 02:50:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:25,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:26,075 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 02:50:26,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:26,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450743080] [2024-11-14 02:50:26,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450743080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:26,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:26,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:26,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400706117] [2024-11-14 02:50:26,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:26,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:50:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:26,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:50:26,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:50:26,081 INFO L87 Difference]: Start difference. First operand 1819 states and 2557 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 02:50:26,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:26,437 INFO L93 Difference]: Finished difference Result 5305 states and 7438 transitions. [2024-11-14 02:50:26,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:50:26,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 212 [2024-11-14 02:50:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:26,453 INFO L225 Difference]: With dead ends: 5305 [2024-11-14 02:50:26,453 INFO L226 Difference]: Without dead ends: 3618 [2024-11-14 02:50:26,456 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 02:50:26,457 INFO L432 NwaCegarLoop]: 1280 mSDtfsCounter, 675 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:26,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1918 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:26,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2024-11-14 02:50:26,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 1822. [2024-11-14 02:50:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1820 states have (on average 1.4065934065934067) internal successors, (2560), 1821 states have internal predecessors, (2560), 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 02:50:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2560 transitions. [2024-11-14 02:50:26,553 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2560 transitions. Word has length 212 [2024-11-14 02:50:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:26,554 INFO L471 AbstractCegarLoop]: Abstraction has 1822 states and 2560 transitions. [2024-11-14 02:50:26,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 02:50:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2560 transitions. [2024-11-14 02:50:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-14 02:50:26,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:26,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:26,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:50:26,564 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:26,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:26,566 INFO L85 PathProgramCache]: Analyzing trace with hash -671746315, now seen corresponding path program 1 times [2024-11-14 02:50:26,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:26,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342443446] [2024-11-14 02:50:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:26,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:28,401 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 02:50:28,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:28,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342443446] [2024-11-14 02:50:28,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342443446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:28,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:28,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:50:28,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104914521] [2024-11-14 02:50:28,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:28,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:50:28,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:28,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:50:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:28,406 INFO L87 Difference]: Start difference. First operand 1822 states and 2560 transitions. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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 02:50:29,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:29,234 INFO L93 Difference]: Finished difference Result 7452 states and 10342 transitions. [2024-11-14 02:50:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:50:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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 213 [2024-11-14 02:50:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:29,256 INFO L225 Difference]: With dead ends: 7452 [2024-11-14 02:50:29,257 INFO L226 Difference]: Without dead ends: 6515 [2024-11-14 02:50:29,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:50:29,260 INFO L432 NwaCegarLoop]: 1825 mSDtfsCounter, 2254 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:29,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 5352 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 02:50:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2024-11-14 02:50:29,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 3460. [2024-11-14 02:50:29,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 1.4002313475997687) internal successors, (4842), 3459 states have internal predecessors, (4842), 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 02:50:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 4842 transitions. [2024-11-14 02:50:29,411 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 4842 transitions. Word has length 213 [2024-11-14 02:50:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:29,412 INFO L471 AbstractCegarLoop]: Abstraction has 3460 states and 4842 transitions. [2024-11-14 02:50:29,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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 02:50:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 4842 transitions. [2024-11-14 02:50:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-14 02:50:29,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:29,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:29,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:50:29,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:29,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:29,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1023597514, now seen corresponding path program 1 times [2024-11-14 02:50:29,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:29,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893370692] [2024-11-14 02:50:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:29,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:30,640 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 02:50:30,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893370692] [2024-11-14 02:50:30,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893370692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:30,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:30,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:50:30,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063301211] [2024-11-14 02:50:30,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:30,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:30,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:30,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:30,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:30,643 INFO L87 Difference]: Start difference. First operand 3460 states and 4842 transitions. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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 02:50:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:31,048 INFO L93 Difference]: Finished difference Result 8416 states and 11693 transitions. [2024-11-14 02:50:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:31,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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 215 [2024-11-14 02:50:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:31,067 INFO L225 Difference]: With dead ends: 8416 [2024-11-14 02:50:31,067 INFO L226 Difference]: Without dead ends: 5957 [2024-11-14 02:50:31,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:31,071 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 1282 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:31,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 3185 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2024-11-14 02:50:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 3532. [2024-11-14 02:50:31,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 3530 states have (on average 1.4002832861189802) internal successors, (4943), 3531 states have internal predecessors, (4943), 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 02:50:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4943 transitions. [2024-11-14 02:50:31,199 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4943 transitions. Word has length 215 [2024-11-14 02:50:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:31,200 INFO L471 AbstractCegarLoop]: Abstraction has 3532 states and 4943 transitions. [2024-11-14 02:50:31,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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 02:50:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4943 transitions. [2024-11-14 02:50:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-14 02:50:31,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:31,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:31,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:50:31,209 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:31,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:31,210 INFO L85 PathProgramCache]: Analyzing trace with hash -984828060, now seen corresponding path program 1 times [2024-11-14 02:50:31,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:31,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4755039] [2024-11-14 02:50:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:31,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:31,387 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 02:50:31,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:31,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4755039] [2024-11-14 02:50:31,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4755039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:31,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:31,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684328448] [2024-11-14 02:50:31,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:31,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:50:31,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:50:31,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:50:31,391 INFO L87 Difference]: Start difference. First operand 3532 states and 4943 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 02:50:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:31,676 INFO L93 Difference]: Finished difference Result 9401 states and 13034 transitions. [2024-11-14 02:50:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:50:31,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2024-11-14 02:50:31,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:31,708 INFO L225 Difference]: With dead ends: 9401 [2024-11-14 02:50:31,708 INFO L226 Difference]: Without dead ends: 6618 [2024-11-14 02:50:31,716 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 02:50:31,717 INFO L432 NwaCegarLoop]: 1196 mSDtfsCounter, 579 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:31,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1833 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:50:31,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6618 states. [2024-11-14 02:50:31,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6618 to 3551. [2024-11-14 02:50:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3549 states have (on average 1.3981403212172443) internal successors, (4962), 3550 states have internal predecessors, (4962), 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 02:50:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 4962 transitions. [2024-11-14 02:50:31,885 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 4962 transitions. Word has length 215 [2024-11-14 02:50:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:31,885 INFO L471 AbstractCegarLoop]: Abstraction has 3551 states and 4962 transitions. [2024-11-14 02:50:31,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 02:50:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 4962 transitions. [2024-11-14 02:50:31,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-14 02:50:31,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:31,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:31,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 02:50:31,893 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:31,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:31,894 INFO L85 PathProgramCache]: Analyzing trace with hash -109005389, now seen corresponding path program 1 times [2024-11-14 02:50:31,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:31,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143772124] [2024-11-14 02:50:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:31,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:32,229 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 02:50:32,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143772124] [2024-11-14 02:50:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143772124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:32,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:50:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199359692] [2024-11-14 02:50:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:32,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:32,232 INFO L87 Difference]: Start difference. First operand 3551 states and 4962 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 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 02:50:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:32,702 INFO L93 Difference]: Finished difference Result 5808 states and 8117 transitions. [2024-11-14 02:50:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:32,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 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 216 [2024-11-14 02:50:32,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:32,712 INFO L225 Difference]: With dead ends: 5808 [2024-11-14 02:50:32,712 INFO L226 Difference]: Without dead ends: 3551 [2024-11-14 02:50:32,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:50:32,715 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1518 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:32,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 857 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:50:32,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2024-11-14 02:50:32,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3551. [2024-11-14 02:50:32,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 3549 states have (on average 1.3812341504649197) internal successors, (4902), 3550 states have internal predecessors, (4902), 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 02:50:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 4902 transitions. [2024-11-14 02:50:32,804 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 4902 transitions. Word has length 216 [2024-11-14 02:50:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:32,805 INFO L471 AbstractCegarLoop]: Abstraction has 3551 states and 4902 transitions. [2024-11-14 02:50:32,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 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 02:50:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 4902 transitions. [2024-11-14 02:50:32,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-14 02:50:32,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:32,812 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:32,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 02:50:32,814 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:32,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:32,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1674076269, now seen corresponding path program 1 times [2024-11-14 02:50:32,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:32,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243041607] [2024-11-14 02:50:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:32,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:33,734 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 02:50:33,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:33,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243041607] [2024-11-14 02:50:33,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243041607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:33,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:33,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:33,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664899658] [2024-11-14 02:50:33,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:33,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:50:33,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:33,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:50:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:33,737 INFO L87 Difference]: Start difference. First operand 3551 states and 4902 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 02:50:34,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:34,260 INFO L93 Difference]: Finished difference Result 12790 states and 17600 transitions. [2024-11-14 02:50:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:50:34,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 216 [2024-11-14 02:50:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:34,285 INFO L225 Difference]: With dead ends: 12790 [2024-11-14 02:50:34,285 INFO L226 Difference]: Without dead ends: 9350 [2024-11-14 02:50:34,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:34,292 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 1375 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:34,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 2211 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:50:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2024-11-14 02:50:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 6842. [2024-11-14 02:50:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6842 states, 6840 states have (on average 1.3732456140350877) internal successors, (9393), 6841 states have internal predecessors, (9393), 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 02:50:34,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6842 states to 6842 states and 9393 transitions. [2024-11-14 02:50:34,500 INFO L78 Accepts]: Start accepts. Automaton has 6842 states and 9393 transitions. Word has length 216 [2024-11-14 02:50:34,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:34,500 INFO L471 AbstractCegarLoop]: Abstraction has 6842 states and 9393 transitions. [2024-11-14 02:50:34,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 02:50:34,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6842 states and 9393 transitions. [2024-11-14 02:50:34,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-14 02:50:34,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:34,513 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:34,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 02:50:34,513 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:34,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash -346023890, now seen corresponding path program 1 times [2024-11-14 02:50:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221165746] [2024-11-14 02:50:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:34,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:35,579 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 02:50:35,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:35,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221165746] [2024-11-14 02:50:35,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221165746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:35,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:35,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:50:35,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233158200] [2024-11-14 02:50:35,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:35,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:50:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:35,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:50:35,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:35,584 INFO L87 Difference]: Start difference. First operand 6842 states and 9393 transitions. Second operand has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 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 02:50:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:36,310 INFO L93 Difference]: Finished difference Result 21465 states and 29244 transitions. [2024-11-14 02:50:36,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:50:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 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 217 [2024-11-14 02:50:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:36,353 INFO L225 Difference]: With dead ends: 21465 [2024-11-14 02:50:36,353 INFO L226 Difference]: Without dead ends: 17988 [2024-11-14 02:50:36,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:36,361 INFO L432 NwaCegarLoop]: 1403 mSDtfsCounter, 1697 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:36,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 4374 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:50:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17988 states. [2024-11-14 02:50:36,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17988 to 12926. [2024-11-14 02:50:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12926 states, 12924 states have (on average 1.3657536366450016) internal successors, (17651), 12925 states have internal predecessors, (17651), 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 02:50:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12926 states to 12926 states and 17651 transitions. [2024-11-14 02:50:36,733 INFO L78 Accepts]: Start accepts. Automaton has 12926 states and 17651 transitions. Word has length 217 [2024-11-14 02:50:36,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:36,733 INFO L471 AbstractCegarLoop]: Abstraction has 12926 states and 17651 transitions. [2024-11-14 02:50:36,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 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 02:50:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 12926 states and 17651 transitions. [2024-11-14 02:50:36,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-14 02:50:36,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:36,752 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:36,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 02:50:36,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:36,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1693480236, now seen corresponding path program 1 times [2024-11-14 02:50:36,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:36,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317880875] [2024-11-14 02:50:36,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:36,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:36,957 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 02:50:36,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:36,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317880875] [2024-11-14 02:50:36,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317880875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:36,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:36,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:36,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459387340] [2024-11-14 02:50:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:36,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:50:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:36,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:50:36,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:50:36,962 INFO L87 Difference]: Start difference. First operand 12926 states and 17651 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 02:50:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:37,302 INFO L93 Difference]: Finished difference Result 32082 states and 43624 transitions. [2024-11-14 02:50:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:50:37,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 218 [2024-11-14 02:50:37,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:37,346 INFO L225 Difference]: With dead ends: 32082 [2024-11-14 02:50:37,347 INFO L226 Difference]: Without dead ends: 23743 [2024-11-14 02:50:37,359 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 02:50:37,359 INFO L432 NwaCegarLoop]: 1228 mSDtfsCounter, 551 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:37,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1837 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23743 states. [2024-11-14 02:50:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23743 to 23722. [2024-11-14 02:50:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23722 states, 23720 states have (on average 1.354974704890388) internal successors, (32140), 23721 states have internal predecessors, (32140), 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 02:50:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23722 states to 23722 states and 32140 transitions. [2024-11-14 02:50:37,899 INFO L78 Accepts]: Start accepts. Automaton has 23722 states and 32140 transitions. Word has length 218 [2024-11-14 02:50:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:37,900 INFO L471 AbstractCegarLoop]: Abstraction has 23722 states and 32140 transitions. [2024-11-14 02:50:37,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 02:50:37,900 INFO L276 IsEmpty]: Start isEmpty. Operand 23722 states and 32140 transitions. [2024-11-14 02:50:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-14 02:50:37,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:37,931 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:37,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 02:50:37,934 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:37,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash -272911669, now seen corresponding path program 1 times [2024-11-14 02:50:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:37,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112872998] [2024-11-14 02:50:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:37,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:39,237 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 02:50:39,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:39,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112872998] [2024-11-14 02:50:39,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112872998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:39,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:39,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:50:39,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33570620] [2024-11-14 02:50:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:39,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:50:39,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:39,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:50:39,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:39,241 INFO L87 Difference]: Start difference. First operand 23722 states and 32140 transitions. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 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 02:50:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:39,816 INFO L93 Difference]: Finished difference Result 39511 states and 53652 transitions. [2024-11-14 02:50:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:50:39,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 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 218 [2024-11-14 02:50:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:39,872 INFO L225 Difference]: With dead ends: 39511 [2024-11-14 02:50:39,872 INFO L226 Difference]: Without dead ends: 28994 [2024-11-14 02:50:39,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:50:39,889 INFO L432 NwaCegarLoop]: 1078 mSDtfsCounter, 1306 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:39,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2996 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 02:50:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28994 states. [2024-11-14 02:50:40,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28994 to 23771. [2024-11-14 02:50:40,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23771 states, 23769 states have (on average 1.3552947115991418) internal successors, (32214), 23770 states have internal predecessors, (32214), 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 02:50:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23771 states to 23771 states and 32214 transitions. [2024-11-14 02:50:40,379 INFO L78 Accepts]: Start accepts. Automaton has 23771 states and 32214 transitions. Word has length 218 [2024-11-14 02:50:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:40,379 INFO L471 AbstractCegarLoop]: Abstraction has 23771 states and 32214 transitions. [2024-11-14 02:50:40,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 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 02:50:40,380 INFO L276 IsEmpty]: Start isEmpty. Operand 23771 states and 32214 transitions. [2024-11-14 02:50:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-14 02:50:40,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:40,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:40,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 02:50:40,412 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:40,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:40,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1212030101, now seen corresponding path program 1 times [2024-11-14 02:50:40,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:40,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254828301] [2024-11-14 02:50:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:40,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:41,173 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 02:50:41,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:41,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254828301] [2024-11-14 02:50:41,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254828301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:41,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:41,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:50:41,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679036477] [2024-11-14 02:50:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:41,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:41,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:41,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:41,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:41,175 INFO L87 Difference]: Start difference. First operand 23771 states and 32214 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 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 02:50:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:41,611 INFO L93 Difference]: Finished difference Result 45616 states and 61616 transitions. [2024-11-14 02:50:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:50:41,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 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 220 [2024-11-14 02:50:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:41,656 INFO L225 Difference]: With dead ends: 45616 [2024-11-14 02:50:41,656 INFO L226 Difference]: Without dead ends: 23793 [2024-11-14 02:50:41,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:41,670 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 62 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:41,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2535 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:50:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23793 states. [2024-11-14 02:50:41,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23793 to 23630. [2024-11-14 02:50:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23630 states, 23628 states have (on average 1.3556373793803962) internal successors, (32031), 23629 states have internal predecessors, (32031), 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 02:50:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23630 states to 23630 states and 32031 transitions. [2024-11-14 02:50:42,054 INFO L78 Accepts]: Start accepts. Automaton has 23630 states and 32031 transitions. Word has length 220 [2024-11-14 02:50:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:42,055 INFO L471 AbstractCegarLoop]: Abstraction has 23630 states and 32031 transitions. [2024-11-14 02:50:42,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 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 02:50:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 23630 states and 32031 transitions. [2024-11-14 02:50:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-14 02:50:42,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:42,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:42,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 02:50:42,082 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:42,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:42,082 INFO L85 PathProgramCache]: Analyzing trace with hash 966761506, now seen corresponding path program 1 times [2024-11-14 02:50:42,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:42,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739485517] [2024-11-14 02:50:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:42,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:42,264 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 02:50:42,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:42,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739485517] [2024-11-14 02:50:42,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739485517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:42,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:42,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:42,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385677727] [2024-11-14 02:50:42,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:42,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:50:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:42,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:50:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:50:42,267 INFO L87 Difference]: Start difference. First operand 23630 states and 32031 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 02:50:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:42,615 INFO L93 Difference]: Finished difference Result 52807 states and 71521 transitions. [2024-11-14 02:50:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:50:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 221 [2024-11-14 02:50:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:42,693 INFO L225 Difference]: With dead ends: 52807 [2024-11-14 02:50:42,694 INFO L226 Difference]: Without dead ends: 40418 [2024-11-14 02:50:42,708 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 02:50:42,709 INFO L432 NwaCegarLoop]: 1223 mSDtfsCounter, 541 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:42,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1832 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:50:42,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40418 states. [2024-11-14 02:50:43,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40418 to 40397. [2024-11-14 02:50:43,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40397 states, 40395 states have (on average 1.3474192350538432) internal successors, (54429), 40396 states have internal predecessors, (54429), 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 02:50:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40397 states to 40397 states and 54429 transitions. [2024-11-14 02:50:43,435 INFO L78 Accepts]: Start accepts. Automaton has 40397 states and 54429 transitions. Word has length 221 [2024-11-14 02:50:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:43,435 INFO L471 AbstractCegarLoop]: Abstraction has 40397 states and 54429 transitions. [2024-11-14 02:50:43,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 02:50:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 40397 states and 54429 transitions. [2024-11-14 02:50:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-14 02:50:43,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:43,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:43,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 02:50:43,465 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:43,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:43,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1697790132, now seen corresponding path program 1 times [2024-11-14 02:50:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508070786] [2024-11-14 02:50:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:43,612 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 02:50:43,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508070786] [2024-11-14 02:50:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508070786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:43,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:43,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315502958] [2024-11-14 02:50:43,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:43,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:50:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:43,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:50:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:50:43,614 INFO L87 Difference]: Start difference. First operand 40397 states and 54429 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 02:50:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:44,201 INFO L93 Difference]: Finished difference Result 95502 states and 128048 transitions. [2024-11-14 02:50:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:50:44,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 221 [2024-11-14 02:50:44,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:44,309 INFO L225 Difference]: With dead ends: 95502 [2024-11-14 02:50:44,309 INFO L226 Difference]: Without dead ends: 69616 [2024-11-14 02:50:44,334 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 02:50:44,334 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 566 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:44,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1457 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:44,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69616 states. [2024-11-14 02:50:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69616 to 40469. [2024-11-14 02:50:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40469 states, 40467 states have (on average 1.3470729236167742) internal successors, (54512), 40468 states have internal predecessors, (54512), 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 02:50:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40469 states to 40469 states and 54512 transitions. [2024-11-14 02:50:45,462 INFO L78 Accepts]: Start accepts. Automaton has 40469 states and 54512 transitions. Word has length 221 [2024-11-14 02:50:45,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:45,462 INFO L471 AbstractCegarLoop]: Abstraction has 40469 states and 54512 transitions. [2024-11-14 02:50:45,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 02:50:45,462 INFO L276 IsEmpty]: Start isEmpty. Operand 40469 states and 54512 transitions. [2024-11-14 02:50:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-14 02:50:45,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:45,504 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:45,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 02:50:45,505 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:45,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2106794793, now seen corresponding path program 1 times [2024-11-14 02:50:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:45,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013412180] [2024-11-14 02:50:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:50:46,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:46,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013412180] [2024-11-14 02:50:46,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013412180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:46,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:46,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:50:46,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081543235] [2024-11-14 02:50:46,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:46,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:46,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:46,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:46,580 INFO L87 Difference]: Start difference. First operand 40469 states and 54512 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 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 02:50:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:47,063 INFO L93 Difference]: Finished difference Result 66444 states and 89182 transitions. [2024-11-14 02:50:47,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:47,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 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 221 [2024-11-14 02:50:47,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:47,103 INFO L225 Difference]: With dead ends: 66444 [2024-11-14 02:50:47,103 INFO L226 Difference]: Without dead ends: 36962 [2024-11-14 02:50:47,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:47,123 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 63 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:47,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 2720 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36962 states. [2024-11-14 02:50:47,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36962 to 36812. [2024-11-14 02:50:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36812 states, 36810 states have (on average 1.3464819342569954) internal successors, (49564), 36811 states have internal predecessors, (49564), 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 02:50:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36812 states to 36812 states and 49564 transitions. [2024-11-14 02:50:47,643 INFO L78 Accepts]: Start accepts. Automaton has 36812 states and 49564 transitions. Word has length 221 [2024-11-14 02:50:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:47,643 INFO L471 AbstractCegarLoop]: Abstraction has 36812 states and 49564 transitions. [2024-11-14 02:50:47,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 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 02:50:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 36812 states and 49564 transitions. [2024-11-14 02:50:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-14 02:50:47,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:47,669 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:47,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 02:50:47,670 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:47,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:47,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1379598508, now seen corresponding path program 1 times [2024-11-14 02:50:47,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:47,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250685156] [2024-11-14 02:50:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:47,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:48,594 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 02:50:48,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:48,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250685156] [2024-11-14 02:50:48,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250685156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:48,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:48,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:50:48,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667048311] [2024-11-14 02:50:48,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:48,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:48,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:48,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:48,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:48,596 INFO L87 Difference]: Start difference. First operand 36812 states and 49564 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 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 02:50:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:49,185 INFO L93 Difference]: Finished difference Result 90219 states and 120903 transitions. [2024-11-14 02:50:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 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 222 [2024-11-14 02:50:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:49,257 INFO L225 Difference]: With dead ends: 90219 [2024-11-14 02:50:49,257 INFO L226 Difference]: Without dead ends: 62765 [2024-11-14 02:50:49,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:49,284 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 721 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:49,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 3520 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:50:49,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62765 states. [2024-11-14 02:50:49,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62765 to 37071. [2024-11-14 02:50:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37071 states, 37069 states have (on average 1.3468127006393482) internal successors, (49925), 37070 states have internal predecessors, (49925), 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 02:50:50,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37071 states to 37071 states and 49925 transitions. [2024-11-14 02:50:50,021 INFO L78 Accepts]: Start accepts. Automaton has 37071 states and 49925 transitions. Word has length 222 [2024-11-14 02:50:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:50,021 INFO L471 AbstractCegarLoop]: Abstraction has 37071 states and 49925 transitions. [2024-11-14 02:50:50,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 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 02:50:50,021 INFO L276 IsEmpty]: Start isEmpty. Operand 37071 states and 49925 transitions. [2024-11-14 02:50:50,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-14 02:50:50,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:50,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:50,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 02:50:50,045 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:50,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:50,047 INFO L85 PathProgramCache]: Analyzing trace with hash 68972333, now seen corresponding path program 1 times [2024-11-14 02:50:50,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:50,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579189175] [2024-11-14 02:50:50,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:50,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:50,790 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 02:50:50,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:50,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579189175] [2024-11-14 02:50:50,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579189175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:50,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:50,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:50,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135545658] [2024-11-14 02:50:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:50,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:50:50,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:50,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:50:50,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:50,793 INFO L87 Difference]: Start difference. First operand 37071 states and 49925 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 02:50:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:51,359 INFO L93 Difference]: Finished difference Result 100455 states and 134876 transitions. [2024-11-14 02:50:51,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:50:51,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 222 [2024-11-14 02:50:51,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:51,431 INFO L225 Difference]: With dead ends: 100455 [2024-11-14 02:50:51,432 INFO L226 Difference]: Without dead ends: 64468 [2024-11-14 02:50:51,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:51,460 INFO L432 NwaCegarLoop]: 989 mSDtfsCounter, 558 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:51,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 2561 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:50:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64468 states. [2024-11-14 02:50:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64468 to 64447. [2024-11-14 02:50:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64447 states, 64445 states have (on average 1.3367677864845993) internal successors, (86148), 64446 states have internal predecessors, (86148), 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 02:50:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64447 states to 64447 states and 86148 transitions. [2024-11-14 02:50:52,197 INFO L78 Accepts]: Start accepts. Automaton has 64447 states and 86148 transitions. Word has length 222 [2024-11-14 02:50:52,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:52,197 INFO L471 AbstractCegarLoop]: Abstraction has 64447 states and 86148 transitions. [2024-11-14 02:50:52,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 02:50:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand 64447 states and 86148 transitions. [2024-11-14 02:50:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-14 02:50:52,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:52,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:52,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 02:50:52,240 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:52,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:52,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1778993599, now seen corresponding path program 1 times [2024-11-14 02:50:52,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:52,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106639979] [2024-11-14 02:50:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:52,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:53,432 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 02:50:53,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:53,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106639979] [2024-11-14 02:50:53,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106639979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:53,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:53,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:50:53,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5954960] [2024-11-14 02:50:53,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:53,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:50:53,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:53,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:50:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:53,436 INFO L87 Difference]: Start difference. First operand 64447 states and 86148 transitions. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 02:50:54,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:54,294 INFO L93 Difference]: Finished difference Result 126847 states and 168944 transitions. [2024-11-14 02:50:54,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:54,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 225 [2024-11-14 02:50:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:54,353 INFO L225 Difference]: With dead ends: 126847 [2024-11-14 02:50:54,354 INFO L226 Difference]: Without dead ends: 80102 [2024-11-14 02:50:54,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:50:54,384 INFO L432 NwaCegarLoop]: 1248 mSDtfsCounter, 1252 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:54,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 3121 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:50:54,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80102 states. [2024-11-14 02:50:55,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80102 to 59358. [2024-11-14 02:50:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59358 states, 59356 states have (on average 1.3351809421120022) internal successors, (79251), 59357 states have internal predecessors, (79251), 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 02:50:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59358 states to 59358 states and 79251 transitions. [2024-11-14 02:50:55,617 INFO L78 Accepts]: Start accepts. Automaton has 59358 states and 79251 transitions. Word has length 225 [2024-11-14 02:50:55,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:55,617 INFO L471 AbstractCegarLoop]: Abstraction has 59358 states and 79251 transitions. [2024-11-14 02:50:55,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 02:50:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 59358 states and 79251 transitions. [2024-11-14 02:50:55,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-14 02:50:55,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:55,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:55,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 02:50:55,658 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:55,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:55,659 INFO L85 PathProgramCache]: Analyzing trace with hash -663697731, now seen corresponding path program 1 times [2024-11-14 02:50:55,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:55,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122490164] [2024-11-14 02:50:55,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:55,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:50:56,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122490164] [2024-11-14 02:50:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122490164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:56,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:50:56,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:50:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905442018] [2024-11-14 02:50:56,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:56,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:50:56,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:50:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:56,349 INFO L87 Difference]: Start difference. First operand 59358 states and 79251 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 3 states have internal predecessors, (225), 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 02:50:57,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:57,224 INFO L93 Difference]: Finished difference Result 230247 states and 306154 transitions. [2024-11-14 02:50:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:50:57,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 3 states have internal predecessors, (225), 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 225 [2024-11-14 02:50:57,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:57,370 INFO L225 Difference]: With dead ends: 230247 [2024-11-14 02:50:57,370 INFO L226 Difference]: Without dead ends: 171846 [2024-11-14 02:50:57,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:50:57,420 INFO L432 NwaCegarLoop]: 997 mSDtfsCounter, 1328 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:57,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 2156 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:50:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171846 states. [2024-11-14 02:50:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171846 to 115729. [2024-11-14 02:50:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115729 states, 115727 states have (on average 1.324021187795415) internal successors, (153225), 115728 states have internal predecessors, (153225), 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 02:50:59,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115729 states to 115729 states and 153225 transitions. [2024-11-14 02:50:59,863 INFO L78 Accepts]: Start accepts. Automaton has 115729 states and 153225 transitions. Word has length 225 [2024-11-14 02:50:59,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:59,864 INFO L471 AbstractCegarLoop]: Abstraction has 115729 states and 153225 transitions. [2024-11-14 02:50:59,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 3 states have internal predecessors, (225), 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 02:50:59,864 INFO L276 IsEmpty]: Start isEmpty. Operand 115729 states and 153225 transitions. [2024-11-14 02:50:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-14 02:50:59,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:59,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:59,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 02:50:59,954 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:59,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:59,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1524507484, now seen corresponding path program 1 times [2024-11-14 02:50:59,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:59,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670081130] [2024-11-14 02:50:59,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:59,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:00,182 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 02:51:00,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:00,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670081130] [2024-11-14 02:51:00,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670081130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:00,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:00,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:51:00,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726617285] [2024-11-14 02:51:00,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:00,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:51:00,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:00,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:51:00,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:51:00,185 INFO L87 Difference]: Start difference. First operand 115729 states and 153225 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 02:51:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:01,941 INFO L93 Difference]: Finished difference Result 334702 states and 441353 transitions. [2024-11-14 02:51:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:51:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 227 [2024-11-14 02:51:01,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:02,160 INFO L225 Difference]: With dead ends: 334702 [2024-11-14 02:51:02,160 INFO L226 Difference]: Without dead ends: 226821 [2024-11-14 02:51:02,260 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 02:51:02,261 INFO L432 NwaCegarLoop]: 1196 mSDtfsCounter, 535 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:02,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1805 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:51:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226821 states. [2024-11-14 02:51:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226821 to 226800. [2024-11-14 02:51:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226800 states, 226798 states have (on average 1.314896956763287) internal successors, (298216), 226799 states have internal predecessors, (298216), 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 02:51:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226800 states to 226800 states and 298216 transitions. [2024-11-14 02:51:06,604 INFO L78 Accepts]: Start accepts. Automaton has 226800 states and 298216 transitions. Word has length 227 [2024-11-14 02:51:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:06,604 INFO L471 AbstractCegarLoop]: Abstraction has 226800 states and 298216 transitions. [2024-11-14 02:51:06,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 02:51:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 226800 states and 298216 transitions. [2024-11-14 02:51:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-14 02:51:07,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:07,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:07,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 02:51:07,199 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:51:07,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1429180021, now seen corresponding path program 1 times [2024-11-14 02:51:07,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:07,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750180290] [2024-11-14 02:51:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:07,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:07,362 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 02:51:07,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750180290] [2024-11-14 02:51:07,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750180290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:07,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:07,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:51:07,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101678887] [2024-11-14 02:51:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:07,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:51:07,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:07,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:51:07,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:51:07,363 INFO L87 Difference]: Start difference. First operand 226800 states and 298216 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 02:51:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:09,555 INFO L93 Difference]: Finished difference Result 670713 states and 880833 transitions. [2024-11-14 02:51:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:51:09,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 227 [2024-11-14 02:51:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:10,047 INFO L225 Difference]: With dead ends: 670713 [2024-11-14 02:51:10,047 INFO L226 Difference]: Without dead ends: 452599 [2024-11-14 02:51:10,147 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 02:51:10,147 INFO L432 NwaCegarLoop]: 1241 mSDtfsCounter, 642 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:10,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1870 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:51:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452599 states. [2024-11-14 02:51:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452599 to 226911. [2024-11-14 02:51:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226911 states, 226909 states have (on average 1.3147429145604625) internal successors, (298327), 226910 states have internal predecessors, (298327), 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 02:51:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226911 states to 226911 states and 298327 transitions. [2024-11-14 02:51:16,418 INFO L78 Accepts]: Start accepts. Automaton has 226911 states and 298327 transitions. Word has length 227 [2024-11-14 02:51:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:16,418 INFO L471 AbstractCegarLoop]: Abstraction has 226911 states and 298327 transitions. [2024-11-14 02:51:16,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 02:51:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 226911 states and 298327 transitions. [2024-11-14 02:51:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-14 02:51:16,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:16,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:16,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 02:51:16,540 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:51:16,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2014740942, now seen corresponding path program 1 times [2024-11-14 02:51:16,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:16,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490938659] [2024-11-14 02:51:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:16,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:17,698 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 02:51:17,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:17,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490938659] [2024-11-14 02:51:17,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490938659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:17,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:17,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:51:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303636466] [2024-11-14 02:51:17,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:17,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:51:17,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:17,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:51:17,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:51:17,700 INFO L87 Difference]: Start difference. First operand 226911 states and 298327 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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 02:51:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:20,033 INFO L93 Difference]: Finished difference Result 677283 states and 888983 transitions. [2024-11-14 02:51:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:51:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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 228 [2024-11-14 02:51:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:20,566 INFO L225 Difference]: With dead ends: 677283 [2024-11-14 02:51:20,566 INFO L226 Difference]: Without dead ends: 515345 [2024-11-14 02:51:20,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:51:20,671 INFO L432 NwaCegarLoop]: 1883 mSDtfsCounter, 1176 mSDsluCounter, 5009 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 6892 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:20,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 6892 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 02:51:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515345 states.