./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label30.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 82b72568a7d68d8807a2cbf166a9e84b0d94da78727a98bf613d664fb33ad10d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-13 22:58:02,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 22:58:02,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 22:58:02,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 22:58:02,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 22:58:02,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 22:58:02,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 22:58:02,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 22:58:02,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 22:58:02,883 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 22:58:02,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 22:58:02,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 22:58:02,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 22:58:02,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 22:58:02,885 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 22:58:02,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 22:58:02,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 22:58:02,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 22:58:02,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 22:58:02,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 22:58:02,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 22:58:02,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 22:58:02,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 22:58:02,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 22:58:02,894 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 22:58:02,894 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 22:58:02,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 22:58:02,894 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 22:58:02,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 22:58:02,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 22:58:02,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 22:58:02,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 22:58:02,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 22:58:02,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 22:58:02,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 22:58:02,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 22:58:02,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 22:58:02,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 22:58:02,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 22:58:02,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 22:58:02,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 22:58:02,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 22:58:02,900 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82b72568a7d68d8807a2cbf166a9e84b0d94da78727a98bf613d664fb33ad10d [2024-10-13 22:58:03,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 22:58:03,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 22:58:03,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 22:58:03,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 22:58:03,178 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 22:58:03,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label30.c [2024-10-13 22:58:04,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 22:58:05,276 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 22:58:05,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label30.c [2024-10-13 22:58:05,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9ad1259/7cfe1ed43e124ecbabf1ed7bfa55eeae/FLAGac685a4a1 [2024-10-13 22:58:05,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9ad1259/7cfe1ed43e124ecbabf1ed7bfa55eeae [2024-10-13 22:58:05,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 22:58:05,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 22:58:05,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 22:58:05,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 22:58:05,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 22:58:05,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:58:05" (1/1) ... [2024-10-13 22:58:05,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e928b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:05, skipping insertion in model container [2024-10-13 22:58:05,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:58:05" (1/1) ... [2024-10-13 22:58:05,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 22:58:07,122 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label30.c[377133,377146] [2024-10-13 22:58:07,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 22:58:07,162 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 22:58:08,044 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label30.c[377133,377146] [2024-10-13 22:58:08,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 22:58:08,106 INFO L204 MainTranslator]: Completed translation [2024-10-13 22:58:08,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08 WrapperNode [2024-10-13 22:58:08,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 22:58:08,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 22:58:08,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 22:58:08,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 22:58:08,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,506 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12354 [2024-10-13 22:58:08,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 22:58:08,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 22:58:08,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 22:58:08,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 22:58:08,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,650 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]. [2024-10-13 22:58:08,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:08,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:09,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:09,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:09,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:09,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 22:58:09,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 22:58:09,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 22:58:09,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 22:58:09,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (1/1) ... [2024-10-13 22:58:09,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 22:58:09,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:58:09,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 22:58:09,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 22:58:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 22:58:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 22:58:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 22:58:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 22:58:09,414 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 22:58:09,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 22:58:16,950 INFO L? ?]: Removed 1656 outVars from TransFormulas that were not future-live. [2024-10-13 22:58:16,951 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 22:58:17,048 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 22:58:17,049 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 22:58:17,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:58:17 BoogieIcfgContainer [2024-10-13 22:58:17,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 22:58:17,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 22:58:17,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 22:58:17,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 22:58:17,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:58:05" (1/3) ... [2024-10-13 22:58:17,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc952cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:58:17, skipping insertion in model container [2024-10-13 22:58:17,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:58:08" (2/3) ... [2024-10-13 22:58:17,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc952cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:58:17, skipping insertion in model container [2024-10-13 22:58:17,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:58:17" (3/3) ... [2024-10-13 22:58:17,058 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label30.c [2024-10-13 22:58:17,075 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 22:58:17,075 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 22:58:17,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 22:58:17,199 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;@47e1dc13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 22:58:17,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 22:58:17,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 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) [2024-10-13 22:58:17,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2024-10-13 22:58:17,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:58:17,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:58:17,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:58:17,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:58:17,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1916093766, now seen corresponding path program 1 times [2024-10-13 22:58:17,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:58:17,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736896954] [2024-10-13 22:58:17,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:58:17,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:58:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:58:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:58:19,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:58:19,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736896954] [2024-10-13 22:58:19,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736896954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:58:19,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:58:19,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:58:19,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988943301] [2024-10-13 22:58:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:58:19,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 22:58:19,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:58:19,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 22:58:19,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 22:58:19,736 INFO L87 Difference]: Start difference. First operand has 2123 states, 2121 states have (on average 1.8962753418198963) internal successors, (4022), 2122 states have internal predecessors, (4022), 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 2 states, 2 states have (on average 826.5) internal successors, (1653), 2 states have internal predecessors, (1653), 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) [2024-10-13 22:58:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:58:19,859 INFO L93 Difference]: Finished difference Result 4245 states and 8043 transitions. [2024-10-13 22:58:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 22:58:19,863 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 826.5) internal successors, (1653), 2 states have internal predecessors, (1653), 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 1653 [2024-10-13 22:58:19,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:58:19,902 INFO L225 Difference]: With dead ends: 4245 [2024-10-13 22:58:19,902 INFO L226 Difference]: Without dead ends: 2121 [2024-10-13 22:58:19,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 22:58:19,919 INFO L432 NwaCegarLoop]: 3957 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:58:19,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3957 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 22:58:19,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2024-10-13 22:58:20,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121. [2024-10-13 22:58:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2120 states have (on average 1.866509433962264) internal successors, (3957), 2120 states have internal predecessors, (3957), 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) [2024-10-13 22:58:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3957 transitions. [2024-10-13 22:58:20,044 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 3957 transitions. Word has length 1653 [2024-10-13 22:58:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:58:20,048 INFO L471 AbstractCegarLoop]: Abstraction has 2121 states and 3957 transitions. [2024-10-13 22:58:20,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 826.5) internal successors, (1653), 2 states have internal predecessors, (1653), 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) [2024-10-13 22:58:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 3957 transitions. [2024-10-13 22:58:20,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2024-10-13 22:58:20,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:58:20,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:58:20,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 22:58:20,096 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:58:20,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:58:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash -134597776, now seen corresponding path program 1 times [2024-10-13 22:58:20,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:58:20,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246144181] [2024-10-13 22:58:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:58:20,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:58:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:58:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:58:23,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:58:23,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246144181] [2024-10-13 22:58:23,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246144181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:58:23,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:58:23,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:58:23,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588549412] [2024-10-13 22:58:23,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:58:23,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:58:23,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:58:23,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:58:23,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:58:23,027 INFO L87 Difference]: Start difference. First operand 2121 states and 3957 transitions. Second operand has 3 states, 3 states have (on average 551.0) internal successors, (1653), 2 states have internal predecessors, (1653), 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) [2024-10-13 22:58:29,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:58:29,269 INFO L93 Difference]: Finished difference Result 6026 states and 11333 transitions. [2024-10-13 22:58:29,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:58:29,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 2 states have internal predecessors, (1653), 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 1653 [2024-10-13 22:58:29,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:58:29,288 INFO L225 Difference]: With dead ends: 6026 [2024-10-13 22:58:29,288 INFO L226 Difference]: Without dead ends: 3906 [2024-10-13 22:58:29,291 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 [2024-10-13 22:58:29,292 INFO L432 NwaCegarLoop]: 1705 mSDtfsCounter, 308 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 5545 mSolverCounterSat, 1409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 6954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 5545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-10-13 22:58:29,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 2015 Invalid, 6954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1409 Valid, 5545 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-10-13 22:58:29,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2024-10-13 22:58:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3899. [2024-10-13 22:58:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3899 states, 3898 states have (on average 1.6198050282195997) internal successors, (6314), 3898 states have internal predecessors, (6314), 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) [2024-10-13 22:58:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 6314 transitions. [2024-10-13 22:58:29,366 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 6314 transitions. Word has length 1653 [2024-10-13 22:58:29,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:58:29,370 INFO L471 AbstractCegarLoop]: Abstraction has 3899 states and 6314 transitions. [2024-10-13 22:58:29,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 2 states have internal predecessors, (1653), 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) [2024-10-13 22:58:29,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 6314 transitions. [2024-10-13 22:58:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2024-10-13 22:58:29,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:58:29,395 INFO L215 NwaCegarLoop]: trace histogram [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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:58:29,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 22:58:29,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:58:29,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:58:29,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1383332192, now seen corresponding path program 1 times [2024-10-13 22:58:29,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:58:29,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255032454] [2024-10-13 22:58:29,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:58:29,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:58:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:58:30,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:58:30,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:58:30,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255032454] [2024-10-13 22:58:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255032454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:58:30,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:58:30,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:58:30,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003166779] [2024-10-13 22:58:30,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:58:30,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:58:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:58:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:58:30,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:58:30,762 INFO L87 Difference]: Start difference. First operand 3899 states and 6314 transitions. Second operand has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 2 states have internal predecessors, (1658), 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) [2024-10-13 22:58:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:58:36,630 INFO L93 Difference]: Finished difference Result 11342 states and 18472 transitions. [2024-10-13 22:58:36,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:58:36,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 2 states have internal predecessors, (1658), 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 1658 [2024-10-13 22:58:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:58:36,660 INFO L225 Difference]: With dead ends: 11342 [2024-10-13 22:58:36,660 INFO L226 Difference]: Without dead ends: 7444 [2024-10-13 22:58:36,667 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 [2024-10-13 22:58:36,668 INFO L432 NwaCegarLoop]: 1346 mSDtfsCounter, 1996 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 5242 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 7593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 5242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-10-13 22:58:36,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1566 Invalid, 7593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2351 Valid, 5242 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-10-13 22:58:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7444 states. [2024-10-13 22:58:36,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 7360. [2024-10-13 22:58:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7359 states have (on average 1.5041445848620736) internal successors, (11069), 7359 states have internal predecessors, (11069), 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) [2024-10-13 22:58:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 11069 transitions. [2024-10-13 22:58:36,798 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 11069 transitions. Word has length 1658 [2024-10-13 22:58:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:58:36,799 INFO L471 AbstractCegarLoop]: Abstraction has 7360 states and 11069 transitions. [2024-10-13 22:58:36,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 552.6666666666666) internal successors, (1658), 2 states have internal predecessors, (1658), 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) [2024-10-13 22:58:36,800 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 11069 transitions. [2024-10-13 22:58:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1661 [2024-10-13 22:58:36,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:58:36,827 INFO L215 NwaCegarLoop]: trace histogram [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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:58:36,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 22:58:36,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:58:36,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:58:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash 843808603, now seen corresponding path program 1 times [2024-10-13 22:58:36,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:58:36,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974479043] [2024-10-13 22:58:36,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:58:36,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:58:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:58:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:58:40,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:58:40,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974479043] [2024-10-13 22:58:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974479043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:58:40,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:58:40,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:58:40,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94627143] [2024-10-13 22:58:40,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:58:40,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 22:58:40,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:58:40,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 22:58:40,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 22:58:40,259 INFO L87 Difference]: Start difference. First operand 7360 states and 11069 transitions. Second operand has 4 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 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) [2024-10-13 22:58:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:58:49,354 INFO L93 Difference]: Finished difference Result 23147 states and 35020 transitions. [2024-10-13 22:58:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 22:58:49,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 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 1660 [2024-10-13 22:58:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:58:49,405 INFO L225 Difference]: With dead ends: 23147 [2024-10-13 22:58:49,405 INFO L226 Difference]: Without dead ends: 14136 [2024-10-13 22:58:49,420 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 [2024-10-13 22:58:49,422 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 3045 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 9245 mSolverCounterSat, 4050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 13295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4050 IncrementalHoareTripleChecker+Valid, 9245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-10-13 22:58:49,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 1297 Invalid, 13295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4050 Valid, 9245 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-10-13 22:58:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14136 states. [2024-10-13 22:58:49,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14136 to 14136. [2024-10-13 22:58:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14136 states, 14135 states have (on average 1.242235585426247) internal successors, (17559), 14135 states have internal predecessors, (17559), 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) [2024-10-13 22:58:49,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14136 states to 14136 states and 17559 transitions. [2024-10-13 22:58:49,653 INFO L78 Accepts]: Start accepts. Automaton has 14136 states and 17559 transitions. Word has length 1660 [2024-10-13 22:58:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:58:49,654 INFO L471 AbstractCegarLoop]: Abstraction has 14136 states and 17559 transitions. [2024-10-13 22:58:49,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 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) [2024-10-13 22:58:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 14136 states and 17559 transitions. [2024-10-13 22:58:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2024-10-13 22:58:49,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:58:49,690 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:58:49,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 22:58:49,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:58:49,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:58:49,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1492644034, now seen corresponding path program 1 times [2024-10-13 22:58:49,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:58:49,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708535834] [2024-10-13 22:58:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:58:49,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:58:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:58:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:58:51,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:58:51,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708535834] [2024-10-13 22:58:51,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708535834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:58:51,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:58:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:58:51,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134199599] [2024-10-13 22:58:51,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:58:51,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:58:51,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:58:51,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:58:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:58:51,414 INFO L87 Difference]: Start difference. First operand 14136 states and 17559 transitions. Second operand has 3 states, 3 states have (on average 557.0) internal successors, (1671), 3 states have internal predecessors, (1671), 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) [2024-10-13 22:58:55,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:58:55,889 INFO L93 Difference]: Finished difference Result 42004 states and 52174 transitions. [2024-10-13 22:58:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:58:55,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 557.0) internal successors, (1671), 3 states have internal predecessors, (1671), 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 1671 [2024-10-13 22:58:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:58:55,937 INFO L225 Difference]: With dead ends: 42004 [2024-10-13 22:58:55,937 INFO L226 Difference]: Without dead ends: 27869 [2024-10-13 22:58:55,951 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 [2024-10-13 22:58:55,953 INFO L432 NwaCegarLoop]: 3357 mSDtfsCounter, 395 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 5188 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 5824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 5188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-13 22:58:55,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 3759 Invalid, 5824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 5188 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-13 22:58:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2024-10-13 22:58:56,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 27823. [2024-10-13 22:58:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27823 states, 27822 states have (on average 1.1799654949320681) internal successors, (32829), 27822 states have internal predecessors, (32829), 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) [2024-10-13 22:58:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27823 states to 27823 states and 32829 transitions. [2024-10-13 22:58:56,331 INFO L78 Accepts]: Start accepts. Automaton has 27823 states and 32829 transitions. Word has length 1671 [2024-10-13 22:58:56,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:58:56,332 INFO L471 AbstractCegarLoop]: Abstraction has 27823 states and 32829 transitions. [2024-10-13 22:58:56,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 557.0) internal successors, (1671), 3 states have internal predecessors, (1671), 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) [2024-10-13 22:58:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 27823 states and 32829 transitions. [2024-10-13 22:58:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1688 [2024-10-13 22:58:56,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:58:56,386 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, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:58:56,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 22:58:56,387 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:58:56,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:58:56,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1597179286, now seen corresponding path program 1 times [2024-10-13 22:58:56,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:58:56,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372224456] [2024-10-13 22:58:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:58:56,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:58:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:58:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:58:57,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:58:57,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372224456] [2024-10-13 22:58:57,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372224456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:58:57,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:58:57,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:58:57,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336731064] [2024-10-13 22:58:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:58:57,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:58:57,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:58:57,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:58:57,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:58:57,401 INFO L87 Difference]: Start difference. First operand 27823 states and 32829 transitions. Second operand has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 2 states have internal predecessors, (1687), 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) [2024-10-13 22:59:01,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:59:01,982 INFO L93 Difference]: Finished difference Result 82852 states and 97691 transitions. [2024-10-13 22:59:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:59:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 2 states have internal predecessors, (1687), 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 1687 [2024-10-13 22:59:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:59:02,084 INFO L225 Difference]: With dead ends: 82852 [2024-10-13 22:59:02,085 INFO L226 Difference]: Without dead ends: 55030 [2024-10-13 22:59:02,122 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 [2024-10-13 22:59:02,124 INFO L432 NwaCegarLoop]: 1146 mSDtfsCounter, 2009 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 4607 mSolverCounterSat, 1296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 5903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1296 IncrementalHoareTripleChecker+Valid, 4607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-13 22:59:02,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 1310 Invalid, 5903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1296 Valid, 4607 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-13 22:59:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55030 states. [2024-10-13 22:59:02,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55030 to 55002. [2024-10-13 22:59:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55002 states, 55001 states have (on average 1.1506154433555753) internal successors, (63285), 55001 states have internal predecessors, (63285), 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) [2024-10-13 22:59:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55002 states to 55002 states and 63285 transitions. [2024-10-13 22:59:02,777 INFO L78 Accepts]: Start accepts. Automaton has 55002 states and 63285 transitions. Word has length 1687 [2024-10-13 22:59:02,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:59:02,780 INFO L471 AbstractCegarLoop]: Abstraction has 55002 states and 63285 transitions. [2024-10-13 22:59:02,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 2 states have internal predecessors, (1687), 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) [2024-10-13 22:59:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 55002 states and 63285 transitions. [2024-10-13 22:59:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1695 [2024-10-13 22:59:02,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:59:02,859 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:59:02,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 22:59:02,860 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:59:02,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:59:02,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1399041591, now seen corresponding path program 1 times [2024-10-13 22:59:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:59:02,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224377971] [2024-10-13 22:59:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:59:02,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:59:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:59:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 22:59:03,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:59:03,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224377971] [2024-10-13 22:59:03,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224377971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:59:03,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:59:03,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:59:03,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28491422] [2024-10-13 22:59:03,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:59:03,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:59:03,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:59:03,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:59:03,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:59:03,936 INFO L87 Difference]: Start difference. First operand 55002 states and 63285 transitions. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 2 states have internal predecessors, (1690), 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) [2024-10-13 22:59:08,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:59:08,262 INFO L93 Difference]: Finished difference Result 137198 states and 157067 transitions. [2024-10-13 22:59:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:59:08,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 2 states have internal predecessors, (1690), 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 1694 [2024-10-13 22:59:08,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:59:08,371 INFO L225 Difference]: With dead ends: 137198 [2024-10-13 22:59:08,371 INFO L226 Difference]: Without dead ends: 82197 [2024-10-13 22:59:08,419 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 [2024-10-13 22:59:08,420 INFO L432 NwaCegarLoop]: 982 mSDtfsCounter, 2100 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4510 mSolverCounterSat, 1147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 5657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1147 IncrementalHoareTripleChecker+Valid, 4510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-13 22:59:08,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 1116 Invalid, 5657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1147 Valid, 4510 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-13 22:59:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82197 states. [2024-10-13 22:59:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82197 to 82174. [2024-10-13 22:59:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82174 states, 82173 states have (on average 1.1006413298772102) internal successors, (90443), 82173 states have internal predecessors, (90443), 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) [2024-10-13 22:59:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82174 states to 82174 states and 90443 transitions. [2024-10-13 22:59:09,542 INFO L78 Accepts]: Start accepts. Automaton has 82174 states and 90443 transitions. Word has length 1694 [2024-10-13 22:59:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:59:09,542 INFO L471 AbstractCegarLoop]: Abstraction has 82174 states and 90443 transitions. [2024-10-13 22:59:09,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 2 states have internal predecessors, (1690), 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) [2024-10-13 22:59:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 82174 states and 90443 transitions. [2024-10-13 22:59:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2024-10-13 22:59:09,650 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:59:09,651 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, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:59:09,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 22:59:09,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:59:09,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:59:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash 286711762, now seen corresponding path program 1 times [2024-10-13 22:59:09,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:59:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141227177] [2024-10-13 22:59:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:59:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:59:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:59:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-13 22:59:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:59:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141227177] [2024-10-13 22:59:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141227177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:59:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:59:10,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:59:10,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20103979] [2024-10-13 22:59:10,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:59:10,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:59:10,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:59:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:59:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:59:10,992 INFO L87 Difference]: Start difference. First operand 82174 states and 90443 transitions. Second operand has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 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) [2024-10-13 22:59:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:59:15,998 INFO L93 Difference]: Finished difference Result 244148 states and 268696 transitions. [2024-10-13 22:59:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:59:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 2 states have internal predecessors, (1679), 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 1710 [2024-10-13 22:59:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted.