./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem19_label27.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_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem19_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ab24122cfbae27f78ca86ca1d1162f9de3aff1954d8424bcfc24fa3959df5e7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:39:58,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:39:58,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:39:58,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:39:58,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:39:58,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:39:58,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:39:58,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:39:58,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:39:58,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:39:58,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:39:58,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:39:58,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:39:58,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:39:58,794 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:39:58,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:39:58,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:39:58,794 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:39:58,795 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:39:58,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:39:58,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:39:58,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:39:58,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:39:58,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:39:58,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:39:58,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:39:58,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:39:58,797 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 6ab24122cfbae27f78ca86ca1d1162f9de3aff1954d8424bcfc24fa3959df5e7 [2024-11-13 15:39:59,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:39:59,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:39:59,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:39:59,127 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:39:59,128 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:39:59,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem19_label27.c Unable to find full path for "g++" [2024-11-13 15:40:01,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:40:02,034 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:40:02,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/sv-benchmarks/c/eca-rers2012/Problem19_label27.c [2024-11-13 15:40:02,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/data/d52721142/54141517f99c4057b6e25ca17d3265c5/FLAG8f60e9ab7 [2024-11-13 15:40:02,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/data/d52721142/54141517f99c4057b6e25ca17d3265c5 [2024-11-13 15:40:02,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:40:02,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:40:02,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:40:02,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:40:02,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:40:02,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:40:02" (1/1) ... [2024-11-13 15:40:02,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e290b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:02, skipping insertion in model container [2024-11-13 15:40:02,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:40:02" (1/1) ... [2024-11-13 15:40:02,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:40:02,640 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_d6fe9186-6597-4cb8-b655-ca9947e296b8/sv-benchmarks/c/eca-rers2012/Problem19_label27.c[3867,3880] [2024-11-13 15:40:04,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:40:04,122 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:40:04,146 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_d6fe9186-6597-4cb8-b655-ca9947e296b8/sv-benchmarks/c/eca-rers2012/Problem19_label27.c[3867,3880] [2024-11-13 15:40:05,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:40:05,245 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:40:05,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05 WrapperNode [2024-11-13 15:40:05,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:40:05,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:40:05,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:40:05,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:40:05,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:05,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:06,437 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-13 15:40:06,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:40:06,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:40:06,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:40:06,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:40:06,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:06,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:06,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,041 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:40:07,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:40:07,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:40:07,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:40:07,590 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:40:07,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (1/1) ... [2024-11-13 15:40:07,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:40:07,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:07,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:40:07,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:40:07,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:40:07,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:40:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:40:07,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:40:07,744 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:40:07,747 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:40:19,856 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-13 15:40:19,856 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:40:19,916 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:40:19,916 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:40:19,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:19 BoogieIcfgContainer [2024-11-13 15:40:19,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:40:19,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:40:19,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:40:19,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:40:19,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:40:02" (1/3) ... [2024-11-13 15:40:19,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6ac3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:40:19, skipping insertion in model container [2024-11-13 15:40:19,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:40:05" (2/3) ... [2024-11-13 15:40:19,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6ac3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:40:19, skipping insertion in model container [2024-11-13 15:40:19,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:40:19" (3/3) ... [2024-11-13 15:40:19,927 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label27.c [2024-11-13 15:40:19,943 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:40:19,945 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem19_label27.c that has 1 procedures, 1748 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:40:20,046 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:40:20,061 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=PETRI_NET, 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;@214bebef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:40:20,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:40:20,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 15:40:20,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:20,085 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] [2024-11-13 15:40:20,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:20,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:20,092 INFO L85 PathProgramCache]: Analyzing trace with hash -296635552, now seen corresponding path program 1 times [2024-11-13 15:40:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:20,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104079808] [2024-11-13 15:40:20,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:40:20,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:20,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104079808] [2024-11-13 15:40:20,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104079808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:20,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:20,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:40:20,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242494469] [2024-11-13 15:40:20,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:20,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:40:20,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:40:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:20,530 INFO L87 Difference]: Start difference. First operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:30,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:30,506 INFO L93 Difference]: Finished difference Result 4975 states and 9416 transitions. [2024-11-13 15:40:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:40:30,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2024-11-13 15:40:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:30,549 INFO L225 Difference]: With dead ends: 4975 [2024-11-13 15:40:30,549 INFO L226 Difference]: Without dead ends: 3163 [2024-11-13 15:40:30,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:30,567 INFO L432 NwaCegarLoop]: 1358 mSDtfsCounter, 1519 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:30,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1529 Invalid, 5793 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1123 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-13 15:40:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2024-11-13 15:40:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3123. [2024-11-13 15:40:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 1.6268417680973735) internal successors, (5079), 3122 states have internal predecessors, (5079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 5079 transitions. [2024-11-13 15:40:30,858 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 5079 transitions. Word has length 27 [2024-11-13 15:40:30,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:30,858 INFO L471 AbstractCegarLoop]: Abstraction has 3123 states and 5079 transitions. [2024-11-13 15:40:30,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:30,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 5079 transitions. [2024-11-13 15:40:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:40:30,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:30,864 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:30,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:40:30,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:30,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:30,870 INFO L85 PathProgramCache]: Analyzing trace with hash -284719209, now seen corresponding path program 1 times [2024-11-13 15:40:30,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:30,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704726050] [2024-11-13 15:40:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:30,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:40:31,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:31,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704726050] [2024-11-13 15:40:31,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704726050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:31,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:31,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:40:31,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932061985] [2024-11-13 15:40:31,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:31,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:40:31,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:31,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:40:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:31,293 INFO L87 Difference]: Start difference. First operand 3123 states and 5079 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:40,093 INFO L93 Difference]: Finished difference Result 9053 states and 14813 transitions. [2024-11-13 15:40:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:40:40,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2024-11-13 15:40:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:40,116 INFO L225 Difference]: With dead ends: 9053 [2024-11-13 15:40:40,117 INFO L226 Difference]: Without dead ends: 5932 [2024-11-13 15:40:40,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:40,122 INFO L432 NwaCegarLoop]: 1328 mSDtfsCounter, 1534 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 5738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:40,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 1547 Invalid, 5738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-13 15:40:40,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2024-11-13 15:40:40,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5910. [2024-11-13 15:40:40,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.423421898798443) internal successors, (8411), 5909 states have internal predecessors, (8411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 8411 transitions. [2024-11-13 15:40:40,252 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 8411 transitions. Word has length 98 [2024-11-13 15:40:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:40,253 INFO L471 AbstractCegarLoop]: Abstraction has 5910 states and 8411 transitions. [2024-11-13 15:40:40,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 8411 transitions. [2024-11-13 15:40:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 15:40:40,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:40,256 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:40,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:40:40,257 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:40,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:40,257 INFO L85 PathProgramCache]: Analyzing trace with hash 711290374, now seen corresponding path program 1 times [2024-11-13 15:40:40,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:40,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123481756] [2024-11-13 15:40:40,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:40,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:40:40,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:40,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123481756] [2024-11-13 15:40:40,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123481756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:40,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:40,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:40:40,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200748581] [2024-11-13 15:40:40,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:40,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:40:40,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:40,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:40:40,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:40,574 INFO L87 Difference]: Start difference. First operand 5910 states and 8411 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:48,620 INFO L93 Difference]: Finished difference Result 17505 states and 24942 transitions. [2024-11-13 15:40:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:40:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2024-11-13 15:40:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:48,666 INFO L225 Difference]: With dead ends: 17505 [2024-11-13 15:40:48,667 INFO L226 Difference]: Without dead ends: 11597 [2024-11-13 15:40:48,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:48,675 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 1750 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 4227 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:48,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 1805 Invalid, 5657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 4227 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-13 15:40:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11597 states. [2024-11-13 15:40:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11597 to 11578. [2024-11-13 15:40:48,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11578 states, 11577 states have (on average 1.2801243845555843) internal successors, (14820), 11577 states have internal predecessors, (14820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:48,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11578 states to 11578 states and 14820 transitions. [2024-11-13 15:40:48,902 INFO L78 Accepts]: Start accepts. Automaton has 11578 states and 14820 transitions. Word has length 124 [2024-11-13 15:40:48,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:48,904 INFO L471 AbstractCegarLoop]: Abstraction has 11578 states and 14820 transitions. [2024-11-13 15:40:48,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 11578 states and 14820 transitions. [2024-11-13 15:40:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 15:40:48,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:48,910 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:48,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:40:48,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:48,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1538326554, now seen corresponding path program 1 times [2024-11-13 15:40:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:48,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202190379] [2024-11-13 15:40:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:40:49,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:49,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202190379] [2024-11-13 15:40:49,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202190379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:49,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:40:49,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:40:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994159228] [2024-11-13 15:40:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:49,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:40:49,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:49,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:40:49,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:49,197 INFO L87 Difference]: Start difference. First operand 11578 states and 14820 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:57,545 INFO L93 Difference]: Finished difference Result 34273 states and 43832 transitions. [2024-11-13 15:40:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:40:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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 132 [2024-11-13 15:40:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:57,594 INFO L225 Difference]: With dead ends: 34273 [2024-11-13 15:40:57,594 INFO L226 Difference]: Without dead ends: 22697 [2024-11-13 15:40:57,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:40:57,603 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 2497 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:57,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 994 Invalid, 5554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-13 15:40:57,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22697 states. [2024-11-13 15:40:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22697 to 22694. [2024-11-13 15:40:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22694 states, 22693 states have (on average 1.238663905168995) internal successors, (28109), 22693 states have internal predecessors, (28109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22694 states to 22694 states and 28109 transitions. [2024-11-13 15:40:58,098 INFO L78 Accepts]: Start accepts. Automaton has 22694 states and 28109 transitions. Word has length 132 [2024-11-13 15:40:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:58,099 INFO L471 AbstractCegarLoop]: Abstraction has 22694 states and 28109 transitions. [2024-11-13 15:40:58,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:40:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 22694 states and 28109 transitions. [2024-11-13 15:40:58,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-13 15:40:58,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:58,113 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:40:58,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:40:58,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:40:58,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:58,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1670959761, now seen corresponding path program 1 times [2024-11-13 15:40:58,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:58,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999800230] [2024-11-13 15:40:58,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:58,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:41:00,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:00,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999800230] [2024-11-13 15:41:00,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999800230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:00,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:00,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:41:00,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145441082] [2024-11-13 15:41:00,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:00,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:41:00,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:00,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:41:00,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:41:00,230 INFO L87 Difference]: Start difference. First operand 22694 states and 28109 transitions. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:41:12,195 INFO L93 Difference]: Finished difference Result 57752 states and 69837 transitions. [2024-11-13 15:41:12,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:41:12,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 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 394 [2024-11-13 15:41:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:41:12,256 INFO L225 Difference]: With dead ends: 57752 [2024-11-13 15:41:12,256 INFO L226 Difference]: Without dead ends: 35060 [2024-11-13 15:41:12,270 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 [2024-11-13 15:41:12,271 INFO L432 NwaCegarLoop]: 1805 mSDtfsCounter, 3756 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 9454 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 9698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 9454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:41:12,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3756 Valid, 2160 Invalid, 9698 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [244 Valid, 9454 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2024-11-13 15:41:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35060 states. [2024-11-13 15:41:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35060 to 32288. [2024-11-13 15:41:12,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32288 states, 32287 states have (on average 1.1912844178771642) internal successors, (38463), 32287 states have internal predecessors, (38463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32288 states to 32288 states and 38463 transitions. [2024-11-13 15:41:12,717 INFO L78 Accepts]: Start accepts. Automaton has 32288 states and 38463 transitions. Word has length 394 [2024-11-13 15:41:12,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:41:12,717 INFO L471 AbstractCegarLoop]: Abstraction has 32288 states and 38463 transitions. [2024-11-13 15:41:12,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 32288 states and 38463 transitions. [2024-11-13 15:41:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-13 15:41:12,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:41:12,725 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:12,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:41:12,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:41:12,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1448496363, now seen corresponding path program 1 times [2024-11-13 15:41:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412923072] [2024-11-13 15:41:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:12,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:14,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:14,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412923072] [2024-11-13 15:41:14,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412923072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:14,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:14,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:41:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716970188] [2024-11-13 15:41:14,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:14,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:41:14,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:14,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:41:14,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:41:14,145 INFO L87 Difference]: Start difference. First operand 32288 states and 38463 transitions. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:23,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:41:23,104 INFO L93 Difference]: Finished difference Result 67335 states and 79703 transitions. [2024-11-13 15:41:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:41:23,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 3 states have internal predecessors, (422), 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 422 [2024-11-13 15:41:23,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:41:23,173 INFO L225 Difference]: With dead ends: 67335 [2024-11-13 15:41:23,173 INFO L226 Difference]: Without dead ends: 35018 [2024-11-13 15:41:23,193 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 [2024-11-13 15:41:23,194 INFO L432 NwaCegarLoop]: 1776 mSDtfsCounter, 1138 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 7327 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 7335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:41:23,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2118 Invalid, 7335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7327 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-13 15:41:23,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35018 states. [2024-11-13 15:41:23,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35018 to 35018. [2024-11-13 15:41:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35018 states, 35017 states have (on average 1.1765142645000999) internal successors, (41198), 35017 states have internal predecessors, (41198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35018 states to 35018 states and 41198 transitions. [2024-11-13 15:41:23,737 INFO L78 Accepts]: Start accepts. Automaton has 35018 states and 41198 transitions. Word has length 422 [2024-11-13 15:41:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:41:23,739 INFO L471 AbstractCegarLoop]: Abstraction has 35018 states and 41198 transitions. [2024-11-13 15:41:23,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 35018 states and 41198 transitions. [2024-11-13 15:41:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-11-13 15:41:23,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:41:23,755 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:23,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:41:23,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:41:23,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1857712624, now seen corresponding path program 1 times [2024-11-13 15:41:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743673457] [2024-11-13 15:41:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:24,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:24,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743673457] [2024-11-13 15:41:24,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743673457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:24,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:24,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:41:24,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441507896] [2024-11-13 15:41:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:24,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:41:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:41:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:41:24,493 INFO L87 Difference]: Start difference. First operand 35018 states and 41198 transitions. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:32,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:41:32,711 INFO L93 Difference]: Finished difference Result 78377 states and 94558 transitions. [2024-11-13 15:41:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:41:32,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 514 [2024-11-13 15:41:32,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:41:32,802 INFO L225 Difference]: With dead ends: 78377 [2024-11-13 15:41:32,802 INFO L226 Difference]: Without dead ends: 46091 [2024-11-13 15:41:32,826 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 [2024-11-13 15:41:32,827 INFO L432 NwaCegarLoop]: 2744 mSDtfsCounter, 1508 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 1803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1803 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:41:32,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 2923 Invalid, 5864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1803 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-13 15:41:32,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46091 states. [2024-11-13 15:41:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46091 to 45986. [2024-11-13 15:41:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45986 states, 45985 states have (on average 1.167293682722627) internal successors, (53678), 45985 states have internal predecessors, (53678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45986 states to 45986 states and 53678 transitions. [2024-11-13 15:41:33,556 INFO L78 Accepts]: Start accepts. Automaton has 45986 states and 53678 transitions. Word has length 514 [2024-11-13 15:41:33,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:41:33,558 INFO L471 AbstractCegarLoop]: Abstraction has 45986 states and 53678 transitions. [2024-11-13 15:41:33,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 45986 states and 53678 transitions. [2024-11-13 15:41:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-13 15:41:33,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:41:33,569 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:33,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:41:33,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:41:33,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash -443568841, now seen corresponding path program 1 times [2024-11-13 15:41:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:33,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081942760] [2024-11-13 15:41:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:33,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-13 15:41:34,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:34,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081942760] [2024-11-13 15:41:34,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081942760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:34,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:34,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:41:34,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747562381] [2024-11-13 15:41:34,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:34,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:41:34,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:34,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:41:34,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:41:34,709 INFO L87 Difference]: Start difference. First operand 45986 states and 53678 transitions. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:41:43,707 INFO L93 Difference]: Finished difference Result 104403 states and 124098 transitions. [2024-11-13 15:41:43,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:41:43,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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 726 [2024-11-13 15:41:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:41:43,779 INFO L225 Difference]: With dead ends: 104403 [2024-11-13 15:41:43,780 INFO L226 Difference]: Without dead ends: 61149 [2024-11-13 15:41:43,808 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 [2024-11-13 15:41:43,809 INFO L432 NwaCegarLoop]: 3193 mSDtfsCounter, 1449 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 5099 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3369 SdHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 5099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:41:43,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 3369 Invalid, 6069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [970 Valid, 5099 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-13 15:41:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61149 states. [2024-11-13 15:41:44,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61149 to 61057. [2024-11-13 15:41:44,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61057 states, 61056 states have (on average 1.1519097222222223) internal successors, (70331), 61056 states have internal predecessors, (70331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:44,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61057 states to 61057 states and 70331 transitions. [2024-11-13 15:41:44,556 INFO L78 Accepts]: Start accepts. Automaton has 61057 states and 70331 transitions. Word has length 726 [2024-11-13 15:41:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:41:44,557 INFO L471 AbstractCegarLoop]: Abstraction has 61057 states and 70331 transitions. [2024-11-13 15:41:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 61057 states and 70331 transitions. [2024-11-13 15:41:44,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-13 15:41:44,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:41:44,564 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:44,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:41:44,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:41:44,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:44,565 INFO L85 PathProgramCache]: Analyzing trace with hash -814158799, now seen corresponding path program 1 times [2024-11-13 15:41:44,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:44,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216671034] [2024-11-13 15:41:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:44,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 71 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:41:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:46,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216671034] [2024-11-13 15:41:46,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216671034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:41:46,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212294445] [2024-11-13 15:41:46,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:46,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:41:46,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:46,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:41:46,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:41:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:47,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:41:47,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-13 15:41:47,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:41:47,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212294445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:47,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:41:47,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 15:41:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5402262] [2024-11-13 15:41:47,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:47,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:41:47,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:47,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:41:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:41:47,358 INFO L87 Difference]: Start difference. First operand 61057 states and 70331 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:41:55,781 INFO L93 Difference]: Finished difference Result 135904 states and 158829 transitions. [2024-11-13 15:41:55,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:41:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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 733 [2024-11-13 15:41:55,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:41:55,847 INFO L225 Difference]: With dead ends: 135904 [2024-11-13 15:41:55,847 INFO L226 Difference]: Without dead ends: 77579 [2024-11-13 15:41:55,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:41:55,877 INFO L432 NwaCegarLoop]: 3091 mSDtfsCounter, 1459 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5007 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 5007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:41:55,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 3266 Invalid, 6011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 5007 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-13 15:41:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77579 states. [2024-11-13 15:41:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77579 to 76078. [2024-11-13 15:41:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76078 states, 76077 states have (on average 1.1446297829830303) internal successors, (87080), 76077 states have internal predecessors, (87080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76078 states to 76078 states and 87080 transitions. [2024-11-13 15:41:56,546 INFO L78 Accepts]: Start accepts. Automaton has 76078 states and 87080 transitions. Word has length 733 [2024-11-13 15:41:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:41:56,547 INFO L471 AbstractCegarLoop]: Abstraction has 76078 states and 87080 transitions. [2024-11-13 15:41:56,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:41:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 76078 states and 87080 transitions. [2024-11-13 15:41:56,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2024-11-13 15:41:56,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:41:56,560 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:41:56,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:41:56,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-13 15:41:56,761 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:41:56,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash 281381501, now seen corresponding path program 1 times [2024-11-13 15:41:56,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:56,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694515204] [2024-11-13 15:41:56,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:56,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-13 15:41:58,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:41:58,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694515204] [2024-11-13 15:41:58,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694515204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:41:58,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:41:58,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:41:58,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911595797] [2024-11-13 15:41:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:41:58,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:41:58,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:41:58,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:41:58,393 INFO L87 Difference]: Start difference. First operand 76078 states and 87080 transitions. Second operand has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:12,128 INFO L93 Difference]: Finished difference Result 245284 states and 285310 transitions. [2024-11-13 15:42:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:42:12,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 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 934 [2024-11-13 15:42:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:12,364 INFO L225 Difference]: With dead ends: 245284 [2024-11-13 15:42:12,364 INFO L226 Difference]: Without dead ends: 171938 [2024-11-13 15:42:12,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:42:12,416 INFO L432 NwaCegarLoop]: 1066 mSDtfsCounter, 3233 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 9218 mSolverCounterSat, 2635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 11853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2635 IncrementalHoareTripleChecker+Valid, 9218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:12,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 1418 Invalid, 11853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2635 Valid, 9218 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-13 15:42:12,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171938 states. [2024-11-13 15:42:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171938 to 166294. [2024-11-13 15:42:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166294 states, 166293 states have (on average 1.13519510743086) internal successors, (188775), 166293 states have internal predecessors, (188775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166294 states to 166294 states and 188775 transitions. [2024-11-13 15:42:15,411 INFO L78 Accepts]: Start accepts. Automaton has 166294 states and 188775 transitions. Word has length 934 [2024-11-13 15:42:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:15,412 INFO L471 AbstractCegarLoop]: Abstraction has 166294 states and 188775 transitions. [2024-11-13 15:42:15,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 166294 states and 188775 transitions. [2024-11-13 15:42:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2024-11-13 15:42:15,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:15,462 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:42:15,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:42:15,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:15,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash -87409222, now seen corresponding path program 1 times [2024-11-13 15:42:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838867691] [2024-11-13 15:42:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 549 proven. 218 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-13 15:42:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838867691] [2024-11-13 15:42:19,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838867691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:42:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501243081] [2024-11-13 15:42:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:19,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:42:19,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:19,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:42:19,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:42:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:20,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:42:20,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:42:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-13 15:42:20,427 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:42:20,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501243081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:20,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:42:20,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 15:42:20,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974726457] [2024-11-13 15:42:20,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:20,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:20,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:42:20,431 INFO L87 Difference]: Start difference. First operand 166294 states and 188775 transitions. Second operand has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:29,507 INFO L93 Difference]: Finished difference Result 463619 states and 529803 transitions. [2024-11-13 15:42:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:29,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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 984 [2024-11-13 15:42:29,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:29,853 INFO L225 Difference]: With dead ends: 463619 [2024-11-13 15:42:29,854 INFO L226 Difference]: Without dead ends: 287764 [2024-11-13 15:42:30,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:42:30,153 INFO L432 NwaCegarLoop]: 2732 mSDtfsCounter, 1515 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 3810 mSolverCounterSat, 2048 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 5858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2048 IncrementalHoareTripleChecker+Valid, 3810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:30,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 2828 Invalid, 5858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2048 Valid, 3810 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-13 15:42:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287764 states. [2024-11-13 15:42:32,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287764 to 274093. [2024-11-13 15:42:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274093 states, 274092 states have (on average 1.1218860820454446) internal successors, (307500), 274092 states have internal predecessors, (307500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274093 states to 274093 states and 307500 transitions. [2024-11-13 15:42:33,932 INFO L78 Accepts]: Start accepts. Automaton has 274093 states and 307500 transitions. Word has length 984 [2024-11-13 15:42:33,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:33,933 INFO L471 AbstractCegarLoop]: Abstraction has 274093 states and 307500 transitions. [2024-11-13 15:42:33,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 274093 states and 307500 transitions. [2024-11-13 15:42:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1062 [2024-11-13 15:42:33,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:33,961 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:42:33,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:42:34,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 15:42:34,162 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:34,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1318868094, now seen corresponding path program 1 times [2024-11-13 15:42:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:34,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176842712] [2024-11-13 15:42:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:34,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-13 15:42:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176842712] [2024-11-13 15:42:35,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176842712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:35,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:35,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:42:35,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635999073] [2024-11-13 15:42:35,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:35,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:42:35,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:35,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:42:35,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:42:35,212 INFO L87 Difference]: Start difference. First operand 274093 states and 307500 transitions. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:49,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:49,912 INFO L93 Difference]: Finished difference Result 819839 states and 934255 transitions. [2024-11-13 15:42:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:42:49,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 1061 [2024-11-13 15:42:49,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:51,149 INFO L225 Difference]: With dead ends: 819839 [2024-11-13 15:42:51,149 INFO L226 Difference]: Without dead ends: 548478 [2024-11-13 15:42:51,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:42:51,223 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 3195 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 7604 mSolverCounterSat, 2875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3195 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 10479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2875 IncrementalHoareTripleChecker+Valid, 7604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:51,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3195 Valid, 1001 Invalid, 10479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2875 Valid, 7604 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-13 15:42:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548478 states. [2024-11-13 15:42:57,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548478 to 548457. [2024-11-13 15:42:57,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548457 states, 548456 states have (on average 1.1068107560132445) internal successors, (607037), 548456 states have internal predecessors, (607037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548457 states to 548457 states and 607037 transitions. [2024-11-13 15:42:59,335 INFO L78 Accepts]: Start accepts. Automaton has 548457 states and 607037 transitions. Word has length 1061 [2024-11-13 15:42:59,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:59,336 INFO L471 AbstractCegarLoop]: Abstraction has 548457 states and 607037 transitions. [2024-11-13 15:42:59,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,336 INFO L276 IsEmpty]: Start isEmpty. Operand 548457 states and 607037 transitions. [2024-11-13 15:42:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1324 [2024-11-13 15:42:59,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:59,359 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:42:59,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:42:59,360 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:59,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1225084113, now seen corresponding path program 1 times [2024-11-13 15:42:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:59,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540879121] [2024-11-13 15:42:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 435 proven. 485 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:43:04,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:04,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540879121] [2024-11-13 15:43:04,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540879121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:04,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323867212] [2024-11-13 15:43:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:04,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:04,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fe9186-6597-4cb8-b655-ca9947e296b8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:43:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:04,899 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2024-11-13 15:43:04,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:43:04,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323867212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:04,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:43:04,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 15:43:04,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454685576] [2024-11-13 15:43:04,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:04,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:43:04,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:04,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:43:04,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:43:04,903 INFO L87 Difference]: Start difference. First operand 548457 states and 607037 transitions. Second operand has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:15,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:15,892 INFO L93 Difference]: Finished difference Result 1275743 states and 1408792 transitions. [2024-11-13 15:43:15,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:43:15,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 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 1323 [2024-11-13 15:43:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:16,818 INFO L225 Difference]: With dead ends: 1275743 [2024-11-13 15:43:16,818 INFO L226 Difference]: Without dead ends: 730018 [2024-11-13 15:43:16,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1328 GetRequests, 1322 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:43:16,974 INFO L432 NwaCegarLoop]: 3101 mSDtfsCounter, 1268 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 3733 mSolverCounterSat, 1323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 5056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1323 IncrementalHoareTripleChecker+Valid, 3733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:16,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 3287 Invalid, 5056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1323 Valid, 3733 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-13 15:43:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730018 states.