./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 05:00:06,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 05:00:06,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 05:00:06,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 05:00:06,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 05:00:06,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 05:00:06,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 05:00:06,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 05:00:06,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 05:00:06,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 05:00:06,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 05:00:06,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 05:00:06,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 05:00:06,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 05:00:06,428 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 05:00:06,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 05:00:06,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 05:00:06,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 05:00:06,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 05:00:06,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 05:00:06,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 05:00:06,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 05:00:06,439 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 05:00:06,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 05:00:06,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 05:00:06,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 05:00:06,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 05:00:06,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 05:00:06,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 05:00:06,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 05:00:06,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 05:00:06,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 05:00:06,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 05:00:06,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 05:00:06,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 05:00:06,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 05:00:06,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 05:00:06,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 05:00:06,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 05:00:06,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de [2024-10-24 05:00:06,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 05:00:06,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 05:00:06,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 05:00:06,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 05:00:06,798 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 05:00:06,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-10-24 05:00:08,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 05:00:08,799 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 05:00:08,803 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-10-24 05:00:08,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33edf73a/c3219d342b8847dbbfe9ba7396fd9364/FLAG3a3adf568 [2024-10-24 05:00:08,989 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33edf73a/c3219d342b8847dbbfe9ba7396fd9364 [2024-10-24 05:00:08,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 05:00:08,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 05:00:08,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 05:00:08,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 05:00:09,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 05:00:09,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:00:08" (1/1) ... [2024-10-24 05:00:09,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65913ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09, skipping insertion in model container [2024-10-24 05:00:09,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:00:08" (1/1) ... [2024-10-24 05:00:09,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 05:00:09,184 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c[1258,1271] [2024-10-24 05:00:09,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 05:00:09,258 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 05:00:09,268 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c[1258,1271] [2024-10-24 05:00:09,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 05:00:09,323 INFO L204 MainTranslator]: Completed translation [2024-10-24 05:00:09,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09 WrapperNode [2024-10-24 05:00:09,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 05:00:09,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 05:00:09,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 05:00:09,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 05:00:09,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,381 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 319 [2024-10-24 05:00:09,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 05:00:09,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 05:00:09,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 05:00:09,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 05:00:09,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,430 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]. [2024-10-24 05:00:09,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 05:00:09,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 05:00:09,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 05:00:09,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 05:00:09,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (1/1) ... [2024-10-24 05:00:09,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 05:00:09,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:00:09,510 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) [2024-10-24 05:00:09,520 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 [2024-10-24 05:00:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 05:00:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 05:00:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 05:00:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 05:00:09,649 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 05:00:09,651 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 05:00:10,212 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-10-24 05:00:10,213 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 05:00:10,244 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 05:00:10,244 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 05:00:10,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:00:10 BoogieIcfgContainer [2024-10-24 05:00:10,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 05:00:10,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 05:00:10,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 05:00:10,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 05:00:10,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:00:08" (1/3) ... [2024-10-24 05:00:10,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b206021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:00:10, skipping insertion in model container [2024-10-24 05:00:10,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:00:09" (2/3) ... [2024-10-24 05:00:10,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b206021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:00:10, skipping insertion in model container [2024-10-24 05:00:10,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:00:10" (3/3) ... [2024-10-24 05:00:10,253 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-10-24 05:00:10,267 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 05:00:10,268 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 05:00:10,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 05:00:10,335 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;@4e47b0a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 05:00:10,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 05:00:10,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 86 states have internal predecessors, (128), 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) [2024-10-24 05:00:10,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 05:00:10,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:10,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:00:10,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:10,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1552929030, now seen corresponding path program 1 times [2024-10-24 05:00:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:10,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686889712] [2024-10-24 05:00:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:10,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:10,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:10,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686889712] [2024-10-24 05:00:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686889712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:10,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:10,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:00:10,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688239124] [2024-10-24 05:00:10,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:10,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 05:00:10,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:10,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 05:00:10,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:00:10,899 INFO L87 Difference]: Start difference. First operand has 87 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 86 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-24 05:00:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:10,953 INFO L93 Difference]: Finished difference Result 166 states and 246 transitions. [2024-10-24 05:00:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 05:00:10,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-10-24 05:00:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:10,965 INFO L225 Difference]: With dead ends: 166 [2024-10-24 05:00:10,965 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 05:00:10,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:00:10,972 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:10,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:10,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 05:00:11,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-24 05:00:11,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.471264367816092) internal successors, (128), 87 states have internal predecessors, (128), 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) [2024-10-24 05:00:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 128 transitions. [2024-10-24 05:00:11,011 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 128 transitions. Word has length 12 [2024-10-24 05:00:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:11,012 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 128 transitions. [2024-10-24 05:00:11,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-24 05:00:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 128 transitions. [2024-10-24 05:00:11,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-24 05:00:11,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:11,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:00:11,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 05:00:11,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:11,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash 897854879, now seen corresponding path program 1 times [2024-10-24 05:00:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:11,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920393003] [2024-10-24 05:00:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:11,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:11,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:11,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920393003] [2024-10-24 05:00:11,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920393003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:11,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:11,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:00:11,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154775466] [2024-10-24 05:00:11,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:11,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 05:00:11,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:11,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 05:00:11,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:00:11,182 INFO L87 Difference]: Start difference. First operand 88 states and 128 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-24 05:00:11,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:11,217 INFO L93 Difference]: Finished difference Result 169 states and 246 transitions. [2024-10-24 05:00:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 05:00:11,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-10-24 05:00:11,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:11,219 INFO L225 Difference]: With dead ends: 169 [2024-10-24 05:00:11,219 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 05:00:11,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:00:11,222 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:11,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 361 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 05:00:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-24 05:00:11,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4606741573033708) internal successors, (130), 89 states have internal predecessors, (130), 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) [2024-10-24 05:00:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 130 transitions. [2024-10-24 05:00:11,232 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 130 transitions. Word has length 13 [2024-10-24 05:00:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:11,232 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 130 transitions. [2024-10-24 05:00:11,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-24 05:00:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 130 transitions. [2024-10-24 05:00:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-24 05:00:11,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:11,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:00:11,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 05:00:11,235 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:11,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:11,235 INFO L85 PathProgramCache]: Analyzing trace with hash 965731583, now seen corresponding path program 1 times [2024-10-24 05:00:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:11,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44863413] [2024-10-24 05:00:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:11,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:11,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:11,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44863413] [2024-10-24 05:00:11,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44863413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:11,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:11,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:00:11,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625561427] [2024-10-24 05:00:11,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:11,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 05:00:11,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:11,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 05:00:11,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:00:11,488 INFO L87 Difference]: Start difference. First operand 90 states and 130 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-10-24 05:00:11,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:11,526 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-10-24 05:00:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 05:00:11,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-10-24 05:00:11,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:11,527 INFO L225 Difference]: With dead ends: 173 [2024-10-24 05:00:11,529 INFO L226 Difference]: Without dead ends: 92 [2024-10-24 05:00:11,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:00:11,530 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 8 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:11,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 471 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-24 05:00:11,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-24 05:00:11,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.4505494505494505) internal successors, (132), 91 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2024-10-24 05:00:11,543 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 14 [2024-10-24 05:00:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:11,543 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2024-10-24 05:00:11,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-10-24 05:00:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2024-10-24 05:00:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 05:00:11,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:11,545 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] [2024-10-24 05:00:11,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 05:00:11,545 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:11,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:11,545 INFO L85 PathProgramCache]: Analyzing trace with hash -261148119, now seen corresponding path program 1 times [2024-10-24 05:00:11,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:11,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145043015] [2024-10-24 05:00:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:11,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:12,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145043015] [2024-10-24 05:00:12,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145043015] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 05:00:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570063316] [2024-10-24 05:00:12,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:12,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:12,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:00:12,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 05:00:12,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 05:00:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:12,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-24 05:00:12,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 05:00:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 05:00:12,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 05:00:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:13,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570063316] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 05:00:13,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 05:00:13,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 16 [2024-10-24 05:00:13,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029147260] [2024-10-24 05:00:13,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 05:00:13,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 05:00:13,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:13,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 05:00:13,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:00:13,909 INFO L87 Difference]: Start difference. First operand 92 states and 132 transitions. Second operand has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 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) [2024-10-24 05:00:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:14,189 INFO L93 Difference]: Finished difference Result 176 states and 253 transitions. [2024-10-24 05:00:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 05:00:14,190 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 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 53 [2024-10-24 05:00:14,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:14,190 INFO L225 Difference]: With dead ends: 176 [2024-10-24 05:00:14,191 INFO L226 Difference]: Without dead ends: 95 [2024-10-24 05:00:14,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:14,193 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 258 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:14,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 960 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-24 05:00:14,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-10-24 05:00:14,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 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) [2024-10-24 05:00:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-10-24 05:00:14,200 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 53 [2024-10-24 05:00:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:14,201 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-10-24 05:00:14,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 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) [2024-10-24 05:00:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-10-24 05:00:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 05:00:14,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:14,202 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] [2024-10-24 05:00:14,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 05:00:14,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:14,404 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:14,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:14,404 INFO L85 PathProgramCache]: Analyzing trace with hash -332069670, now seen corresponding path program 1 times [2024-10-24 05:00:14,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:14,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020817371] [2024-10-24 05:00:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:14,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:15,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:15,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020817371] [2024-10-24 05:00:15,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020817371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:15,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:15,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 05:00:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460144976] [2024-10-24 05:00:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:15,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 05:00:15,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 05:00:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:15,663 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 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) [2024-10-24 05:00:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:15,949 INFO L93 Difference]: Finished difference Result 332 states and 480 transitions. [2024-10-24 05:00:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:00:15,950 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 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 54 [2024-10-24 05:00:15,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:15,953 INFO L225 Difference]: With dead ends: 332 [2024-10-24 05:00:15,954 INFO L226 Difference]: Without dead ends: 248 [2024-10-24 05:00:15,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:15,957 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 227 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:15,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1279 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-24 05:00:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 152. [2024-10-24 05:00:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4437086092715232) internal successors, (218), 151 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 218 transitions. [2024-10-24 05:00:15,973 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 218 transitions. Word has length 54 [2024-10-24 05:00:15,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:15,973 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 218 transitions. [2024-10-24 05:00:15,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 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) [2024-10-24 05:00:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 218 transitions. [2024-10-24 05:00:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 05:00:15,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:15,977 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] [2024-10-24 05:00:15,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 05:00:15,978 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:15,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:15,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1042908899, now seen corresponding path program 1 times [2024-10-24 05:00:15,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:15,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99728446] [2024-10-24 05:00:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:15,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:17,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:17,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99728446] [2024-10-24 05:00:17,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99728446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:17,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:00:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226764311] [2024-10-24 05:00:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:17,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 05:00:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:17,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 05:00:17,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:17,015 INFO L87 Difference]: Start difference. First operand 152 states and 218 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 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) [2024-10-24 05:00:17,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:17,336 INFO L93 Difference]: Finished difference Result 426 states and 620 transitions. [2024-10-24 05:00:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:00:17,337 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 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 55 [2024-10-24 05:00:17,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:17,338 INFO L225 Difference]: With dead ends: 426 [2024-10-24 05:00:17,338 INFO L226 Difference]: Without dead ends: 314 [2024-10-24 05:00:17,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:17,340 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 209 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:17,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1335 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:17,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-10-24 05:00:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 172. [2024-10-24 05:00:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.4444444444444444) internal successors, (247), 171 states have internal predecessors, (247), 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) [2024-10-24 05:00:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions. [2024-10-24 05:00:17,348 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 55 [2024-10-24 05:00:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:17,349 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 247 transitions. [2024-10-24 05:00:17,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 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) [2024-10-24 05:00:17,349 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions. [2024-10-24 05:00:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 05:00:17,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:17,351 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] [2024-10-24 05:00:17,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 05:00:17,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:17,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash 668442764, now seen corresponding path program 1 times [2024-10-24 05:00:17,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:17,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287152883] [2024-10-24 05:00:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:18,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:18,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287152883] [2024-10-24 05:00:18,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287152883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:18,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:18,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 05:00:18,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624996432] [2024-10-24 05:00:18,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:18,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 05:00:18,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:18,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 05:00:18,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:00:18,373 INFO L87 Difference]: Start difference. First operand 172 states and 247 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 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) [2024-10-24 05:00:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:18,633 INFO L93 Difference]: Finished difference Result 457 states and 665 transitions. [2024-10-24 05:00:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 05:00:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 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 55 [2024-10-24 05:00:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:18,634 INFO L225 Difference]: With dead ends: 457 [2024-10-24 05:00:18,635 INFO L226 Difference]: Without dead ends: 328 [2024-10-24 05:00:18,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:00:18,636 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 123 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:18,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1308 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:18,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-24 05:00:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 239. [2024-10-24 05:00:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 1.4411764705882353) internal successors, (343), 238 states have internal predecessors, (343), 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) [2024-10-24 05:00:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 343 transitions. [2024-10-24 05:00:18,642 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 343 transitions. Word has length 55 [2024-10-24 05:00:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:18,643 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 343 transitions. [2024-10-24 05:00:18,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 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) [2024-10-24 05:00:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 343 transitions. [2024-10-24 05:00:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 05:00:18,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:18,645 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] [2024-10-24 05:00:18,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 05:00:18,645 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:18,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1970068494, now seen corresponding path program 1 times [2024-10-24 05:00:18,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:18,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695143524] [2024-10-24 05:00:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:19,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:19,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695143524] [2024-10-24 05:00:19,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695143524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:19,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:19,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:00:19,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313193314] [2024-10-24 05:00:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:19,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 05:00:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 05:00:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:19,757 INFO L87 Difference]: Start difference. First operand 239 states and 343 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 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) [2024-10-24 05:00:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:20,018 INFO L93 Difference]: Finished difference Result 538 states and 775 transitions. [2024-10-24 05:00:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:00:20,018 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 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 55 [2024-10-24 05:00:20,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:20,020 INFO L225 Difference]: With dead ends: 538 [2024-10-24 05:00:20,020 INFO L226 Difference]: Without dead ends: 442 [2024-10-24 05:00:20,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:20,021 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 148 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:20,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1205 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-24 05:00:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 321. [2024-10-24 05:00:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.45) internal successors, (464), 320 states have internal predecessors, (464), 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) [2024-10-24 05:00:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 464 transitions. [2024-10-24 05:00:20,027 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 464 transitions. Word has length 55 [2024-10-24 05:00:20,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:20,028 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 464 transitions. [2024-10-24 05:00:20,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 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) [2024-10-24 05:00:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 464 transitions. [2024-10-24 05:00:20,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:20,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:20,030 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] [2024-10-24 05:00:20,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 05:00:20,030 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:20,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1927844567, now seen corresponding path program 1 times [2024-10-24 05:00:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:20,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182944455] [2024-10-24 05:00:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:20,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182944455] [2024-10-24 05:00:20,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182944455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:20,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:20,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 05:00:20,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838413663] [2024-10-24 05:00:20,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:20,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 05:00:20,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:20,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 05:00:20,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:00:20,369 INFO L87 Difference]: Start difference. First operand 321 states and 464 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:20,410 INFO L93 Difference]: Finished difference Result 497 states and 719 transitions. [2024-10-24 05:00:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 05:00:20,411 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:20,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:20,413 INFO L225 Difference]: With dead ends: 497 [2024-10-24 05:00:20,413 INFO L226 Difference]: Without dead ends: 357 [2024-10-24 05:00:20,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:00:20,413 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 51 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:20,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 812 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-24 05:00:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 344. [2024-10-24 05:00:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.4314868804664722) internal successors, (491), 343 states have internal predecessors, (491), 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) [2024-10-24 05:00:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 491 transitions. [2024-10-24 05:00:20,422 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 491 transitions. Word has length 56 [2024-10-24 05:00:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:20,422 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 491 transitions. [2024-10-24 05:00:20,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 491 transitions. [2024-10-24 05:00:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:20,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:20,423 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] [2024-10-24 05:00:20,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 05:00:20,423 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:20,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash -375438434, now seen corresponding path program 1 times [2024-10-24 05:00:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:20,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827650041] [2024-10-24 05:00:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:20,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:20,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827650041] [2024-10-24 05:00:20,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827650041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:20,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:20,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 05:00:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319573657] [2024-10-24 05:00:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:20,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 05:00:20,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:20,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 05:00:20,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 05:00:20,797 INFO L87 Difference]: Start difference. First operand 344 states and 491 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:20,850 INFO L93 Difference]: Finished difference Result 494 states and 705 transitions. [2024-10-24 05:00:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 05:00:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:20,852 INFO L225 Difference]: With dead ends: 494 [2024-10-24 05:00:20,852 INFO L226 Difference]: Without dead ends: 349 [2024-10-24 05:00:20,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 05:00:20,853 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 47 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:20,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 613 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-24 05:00:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 338. [2024-10-24 05:00:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.4065281899109792) internal successors, (474), 337 states have internal predecessors, (474), 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) [2024-10-24 05:00:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 474 transitions. [2024-10-24 05:00:20,865 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 474 transitions. Word has length 56 [2024-10-24 05:00:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:20,865 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 474 transitions. [2024-10-24 05:00:20,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 474 transitions. [2024-10-24 05:00:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:20,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:20,866 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] [2024-10-24 05:00:20,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 05:00:20,866 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:20,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:20,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1725901768, now seen corresponding path program 1 times [2024-10-24 05:00:20,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:20,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275084635] [2024-10-24 05:00:20,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:20,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:21,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:21,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275084635] [2024-10-24 05:00:21,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275084635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:21,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:21,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 05:00:21,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793735001] [2024-10-24 05:00:21,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:21,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 05:00:21,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:21,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 05:00:21,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:21,717 INFO L87 Difference]: Start difference. First operand 338 states and 474 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:21,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:21,898 INFO L93 Difference]: Finished difference Result 638 states and 902 transitions. [2024-10-24 05:00:21,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:00:21,899 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:21,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:21,901 INFO L225 Difference]: With dead ends: 638 [2024-10-24 05:00:21,901 INFO L226 Difference]: Without dead ends: 511 [2024-10-24 05:00:21,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:21,902 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 124 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:21,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1248 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-10-24 05:00:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 432. [2024-10-24 05:00:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 431 states have (on average 1.4037122969837588) internal successors, (605), 431 states have internal predecessors, (605), 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) [2024-10-24 05:00:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 605 transitions. [2024-10-24 05:00:21,910 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 605 transitions. Word has length 56 [2024-10-24 05:00:21,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:21,910 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 605 transitions. [2024-10-24 05:00:21,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 605 transitions. [2024-10-24 05:00:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:21,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:21,912 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] [2024-10-24 05:00:21,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 05:00:21,912 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:21,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:21,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1435452191, now seen corresponding path program 1 times [2024-10-24 05:00:21,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:21,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593340220] [2024-10-24 05:00:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:21,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:22,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:22,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593340220] [2024-10-24 05:00:22,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593340220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:22,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:22,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 05:00:22,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800517871] [2024-10-24 05:00:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:22,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 05:00:22,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 05:00:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:22,886 INFO L87 Difference]: Start difference. First operand 432 states and 605 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:23,105 INFO L93 Difference]: Finished difference Result 632 states and 887 transitions. [2024-10-24 05:00:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:00:23,105 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:23,109 INFO L225 Difference]: With dead ends: 632 [2024-10-24 05:00:23,109 INFO L226 Difference]: Without dead ends: 547 [2024-10-24 05:00:23,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:23,110 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 299 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:23,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1258 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-10-24 05:00:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 442. [2024-10-24 05:00:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.4058956916099774) internal successors, (620), 441 states have internal predecessors, (620), 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) [2024-10-24 05:00:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 620 transitions. [2024-10-24 05:00:23,132 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 620 transitions. Word has length 56 [2024-10-24 05:00:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:23,133 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 620 transitions. [2024-10-24 05:00:23,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 620 transitions. [2024-10-24 05:00:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:23,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:23,135 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] [2024-10-24 05:00:23,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 05:00:23,135 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:23,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1510101950, now seen corresponding path program 1 times [2024-10-24 05:00:23,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:23,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220306598] [2024-10-24 05:00:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:23,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:24,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:24,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220306598] [2024-10-24 05:00:24,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220306598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:24,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:24,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:00:24,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982896226] [2024-10-24 05:00:24,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:24,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 05:00:24,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:24,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 05:00:24,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:00:24,120 INFO L87 Difference]: Start difference. First operand 442 states and 620 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:24,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:24,295 INFO L93 Difference]: Finished difference Result 691 states and 973 transitions. [2024-10-24 05:00:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 05:00:24,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:24,302 INFO L225 Difference]: With dead ends: 691 [2024-10-24 05:00:24,302 INFO L226 Difference]: Without dead ends: 606 [2024-10-24 05:00:24,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:00:24,304 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 103 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:24,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 528 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-10-24 05:00:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 482. [2024-10-24 05:00:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.4178794178794178) internal successors, (682), 481 states have internal predecessors, (682), 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) [2024-10-24 05:00:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 682 transitions. [2024-10-24 05:00:24,321 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 682 transitions. Word has length 56 [2024-10-24 05:00:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:24,321 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 682 transitions. [2024-10-24 05:00:24,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 682 transitions. [2024-10-24 05:00:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:24,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:24,322 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] [2024-10-24 05:00:24,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 05:00:24,322 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:24,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 976445161, now seen corresponding path program 1 times [2024-10-24 05:00:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:24,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650606668] [2024-10-24 05:00:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:25,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:25,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650606668] [2024-10-24 05:00:25,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650606668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:25,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:25,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-24 05:00:25,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780434551] [2024-10-24 05:00:25,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:25,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 05:00:25,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:25,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 05:00:25,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:00:25,581 INFO L87 Difference]: Start difference. First operand 482 states and 682 transitions. Second operand has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:25,894 INFO L93 Difference]: Finished difference Result 946 states and 1346 transitions. [2024-10-24 05:00:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 05:00:25,895 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:25,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:25,898 INFO L225 Difference]: With dead ends: 946 [2024-10-24 05:00:25,898 INFO L226 Difference]: Without dead ends: 848 [2024-10-24 05:00:25,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-10-24 05:00:25,899 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 645 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:25,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1567 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-10-24 05:00:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 525. [2024-10-24 05:00:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.4217557251908397) internal successors, (745), 524 states have internal predecessors, (745), 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) [2024-10-24 05:00:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 745 transitions. [2024-10-24 05:00:25,911 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 745 transitions. Word has length 56 [2024-10-24 05:00:25,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:25,911 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 745 transitions. [2024-10-24 05:00:25,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:25,912 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 745 transitions. [2024-10-24 05:00:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:25,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:25,913 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] [2024-10-24 05:00:25,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 05:00:25,913 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:25,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1954979724, now seen corresponding path program 1 times [2024-10-24 05:00:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683510033] [2024-10-24 05:00:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:25,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:26,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:26,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683510033] [2024-10-24 05:00:26,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683510033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:26,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:26,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 05:00:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191460765] [2024-10-24 05:00:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:26,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 05:00:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 05:00:26,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:00:26,094 INFO L87 Difference]: Start difference. First operand 525 states and 745 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:26,125 INFO L93 Difference]: Finished difference Result 756 states and 1074 transitions. [2024-10-24 05:00:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 05:00:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:26,127 INFO L225 Difference]: With dead ends: 756 [2024-10-24 05:00:26,128 INFO L226 Difference]: Without dead ends: 528 [2024-10-24 05:00:26,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:00:26,128 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 39 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:26,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 585 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-10-24 05:00:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 526. [2024-10-24 05:00:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.3885714285714286) internal successors, (729), 525 states have internal predecessors, (729), 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) [2024-10-24 05:00:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 729 transitions. [2024-10-24 05:00:26,135 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 729 transitions. Word has length 56 [2024-10-24 05:00:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:26,135 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 729 transitions. [2024-10-24 05:00:26,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 729 transitions. [2024-10-24 05:00:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:26,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:26,136 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] [2024-10-24 05:00:26,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 05:00:26,137 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:26,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1532597459, now seen corresponding path program 1 times [2024-10-24 05:00:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:26,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278163988] [2024-10-24 05:00:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278163988] [2024-10-24 05:00:27,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278163988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:27,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:27,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:00:27,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058129247] [2024-10-24 05:00:27,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:27,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 05:00:27,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:27,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 05:00:27,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:27,011 INFO L87 Difference]: Start difference. First operand 526 states and 729 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:27,711 INFO L93 Difference]: Finished difference Result 978 states and 1366 transitions. [2024-10-24 05:00:27,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:00:27,712 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:27,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:27,714 INFO L225 Difference]: With dead ends: 978 [2024-10-24 05:00:27,714 INFO L226 Difference]: Without dead ends: 835 [2024-10-24 05:00:27,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2024-10-24 05:00:27,719 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 518 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:27,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2010 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 05:00:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-10-24 05:00:27,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 575. [2024-10-24 05:00:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.397212543554007) internal successors, (802), 574 states have internal predecessors, (802), 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) [2024-10-24 05:00:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 802 transitions. [2024-10-24 05:00:27,741 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 802 transitions. Word has length 56 [2024-10-24 05:00:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:27,741 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 802 transitions. [2024-10-24 05:00:27,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 802 transitions. [2024-10-24 05:00:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:27,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:27,746 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] [2024-10-24 05:00:27,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 05:00:27,747 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:27,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:27,747 INFO L85 PathProgramCache]: Analyzing trace with hash -882083109, now seen corresponding path program 1 times [2024-10-24 05:00:27,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:27,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232773918] [2024-10-24 05:00:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:27,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:28,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:28,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232773918] [2024-10-24 05:00:28,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232773918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:28,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:28,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 05:00:28,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5904215] [2024-10-24 05:00:28,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:28,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 05:00:28,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:28,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 05:00:28,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:00:28,445 INFO L87 Difference]: Start difference. First operand 575 states and 802 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:28,821 INFO L93 Difference]: Finished difference Result 1163 states and 1642 transitions. [2024-10-24 05:00:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 05:00:28,822 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:28,825 INFO L225 Difference]: With dead ends: 1163 [2024-10-24 05:00:28,825 INFO L226 Difference]: Without dead ends: 977 [2024-10-24 05:00:28,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:28,826 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 426 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:28,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1948 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-10-24 05:00:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 666. [2024-10-24 05:00:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 1.3984962406015038) internal successors, (930), 665 states have internal predecessors, (930), 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) [2024-10-24 05:00:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 930 transitions. [2024-10-24 05:00:28,835 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 930 transitions. Word has length 56 [2024-10-24 05:00:28,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:28,836 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 930 transitions. [2024-10-24 05:00:28,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 930 transitions. [2024-10-24 05:00:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:28,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:28,837 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] [2024-10-24 05:00:28,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 05:00:28,837 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:28,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash -99808030, now seen corresponding path program 1 times [2024-10-24 05:00:28,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:28,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145002220] [2024-10-24 05:00:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:28,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:29,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145002220] [2024-10-24 05:00:29,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145002220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:29,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:29,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:00:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431234503] [2024-10-24 05:00:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:29,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 05:00:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 05:00:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:00:29,186 INFO L87 Difference]: Start difference. First operand 666 states and 930 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:29,256 INFO L93 Difference]: Finished difference Result 1032 states and 1436 transitions. [2024-10-24 05:00:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 05:00:29,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:29,258 INFO L225 Difference]: With dead ends: 1032 [2024-10-24 05:00:29,258 INFO L226 Difference]: Without dead ends: 777 [2024-10-24 05:00:29,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:00:29,259 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 69 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:29,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 851 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-10-24 05:00:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 732. [2024-10-24 05:00:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.372093023255814) internal successors, (1003), 731 states have internal predecessors, (1003), 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) [2024-10-24 05:00:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1003 transitions. [2024-10-24 05:00:29,278 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1003 transitions. Word has length 56 [2024-10-24 05:00:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:29,278 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1003 transitions. [2024-10-24 05:00:29,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1003 transitions. [2024-10-24 05:00:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:29,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:29,279 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] [2024-10-24 05:00:29,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 05:00:29,280 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:29,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash 47266089, now seen corresponding path program 1 times [2024-10-24 05:00:29,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:29,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442327358] [2024-10-24 05:00:29,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:29,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:29,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:29,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442327358] [2024-10-24 05:00:29,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442327358] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 05:00:29,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707909039] [2024-10-24 05:00:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:29,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:29,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:00:29,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 05:00:29,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 05:00:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:29,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-10-24 05:00:29,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 05:00:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:30,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 05:00:30,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707909039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:30,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 05:00:30,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 20 [2024-10-24 05:00:30,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159977994] [2024-10-24 05:00:30,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:30,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 05:00:30,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:30,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 05:00:30,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:30,413 INFO L87 Difference]: Start difference. First operand 732 states and 1003 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:31,265 INFO L93 Difference]: Finished difference Result 1190 states and 1649 transitions. [2024-10-24 05:00:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 05:00:31,265 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:31,268 INFO L225 Difference]: With dead ends: 1190 [2024-10-24 05:00:31,268 INFO L226 Difference]: Without dead ends: 960 [2024-10-24 05:00:31,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 05:00:31,275 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 165 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:31,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1297 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 05:00:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-10-24 05:00:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 920. [2024-10-24 05:00:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 919 states have (on average 1.3721436343852014) internal successors, (1261), 919 states have internal predecessors, (1261), 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) [2024-10-24 05:00:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1261 transitions. [2024-10-24 05:00:31,305 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1261 transitions. Word has length 56 [2024-10-24 05:00:31,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:31,305 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1261 transitions. [2024-10-24 05:00:31,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1261 transitions. [2024-10-24 05:00:31,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:31,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:31,310 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] [2024-10-24 05:00:31,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 05:00:31,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:31,511 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:31,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1029694035, now seen corresponding path program 1 times [2024-10-24 05:00:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:31,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809651422] [2024-10-24 05:00:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:31,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:32,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:32,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809651422] [2024-10-24 05:00:32,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809651422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:32,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:32,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 05:00:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989133963] [2024-10-24 05:00:32,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:32,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 05:00:32,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:32,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 05:00:32,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:00:32,071 INFO L87 Difference]: Start difference. First operand 920 states and 1261 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:32,203 INFO L93 Difference]: Finished difference Result 1443 states and 1999 transitions. [2024-10-24 05:00:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 05:00:32,203 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:32,206 INFO L225 Difference]: With dead ends: 1443 [2024-10-24 05:00:32,206 INFO L226 Difference]: Without dead ends: 1145 [2024-10-24 05:00:32,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:00:32,207 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 91 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:32,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1359 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-10-24 05:00:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1037. [2024-10-24 05:00:32,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1036 states have (on average 1.3725868725868726) internal successors, (1422), 1036 states have internal predecessors, (1422), 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) [2024-10-24 05:00:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1422 transitions. [2024-10-24 05:00:32,221 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1422 transitions. Word has length 56 [2024-10-24 05:00:32,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:32,222 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1422 transitions. [2024-10-24 05:00:32,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1422 transitions. [2024-10-24 05:00:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:32,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:32,223 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] [2024-10-24 05:00:32,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 05:00:32,224 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:32,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2054915444, now seen corresponding path program 1 times [2024-10-24 05:00:32,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:32,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661968191] [2024-10-24 05:00:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:32,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:32,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661968191] [2024-10-24 05:00:32,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661968191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:32,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:00:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732540921] [2024-10-24 05:00:32,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:32,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 05:00:32,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:32,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 05:00:32,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:00:32,636 INFO L87 Difference]: Start difference. First operand 1037 states and 1422 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:32,733 INFO L93 Difference]: Finished difference Result 1383 states and 1911 transitions. [2024-10-24 05:00:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 05:00:32,734 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:32,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:32,737 INFO L225 Difference]: With dead ends: 1383 [2024-10-24 05:00:32,737 INFO L226 Difference]: Without dead ends: 1092 [2024-10-24 05:00:32,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:00:32,738 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 90 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:32,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 907 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:32,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-10-24 05:00:32,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1049. [2024-10-24 05:00:32,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1048 states have (on average 1.3702290076335877) internal successors, (1436), 1048 states have internal predecessors, (1436), 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) [2024-10-24 05:00:32,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1436 transitions. [2024-10-24 05:00:32,752 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1436 transitions. Word has length 56 [2024-10-24 05:00:32,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:32,752 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1436 transitions. [2024-10-24 05:00:32,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:32,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1436 transitions. [2024-10-24 05:00:32,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:32,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:32,754 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] [2024-10-24 05:00:32,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 05:00:32,754 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:32,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash -281264891, now seen corresponding path program 1 times [2024-10-24 05:00:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:32,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757531628] [2024-10-24 05:00:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:32,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:33,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:33,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757531628] [2024-10-24 05:00:33,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757531628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:33,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:33,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 05:00:33,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100689255] [2024-10-24 05:00:33,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:33,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 05:00:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:33,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 05:00:33,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:00:33,997 INFO L87 Difference]: Start difference. First operand 1049 states and 1436 transitions. Second operand has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:34,316 INFO L93 Difference]: Finished difference Result 1639 states and 2257 transitions. [2024-10-24 05:00:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 05:00:34,319 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:34,330 INFO L225 Difference]: With dead ends: 1639 [2024-10-24 05:00:34,331 INFO L226 Difference]: Without dead ends: 1335 [2024-10-24 05:00:34,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:00:34,333 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 125 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:34,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1702 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-10-24 05:00:34,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1232. [2024-10-24 05:00:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 1.3590576766856215) internal successors, (1673), 1231 states have internal predecessors, (1673), 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) [2024-10-24 05:00:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1673 transitions. [2024-10-24 05:00:34,375 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1673 transitions. Word has length 56 [2024-10-24 05:00:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:34,375 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1673 transitions. [2024-10-24 05:00:34,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1673 transitions. [2024-10-24 05:00:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:34,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:34,381 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] [2024-10-24 05:00:34,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 05:00:34,381 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:34,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:34,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1430086772, now seen corresponding path program 1 times [2024-10-24 05:00:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821185865] [2024-10-24 05:00:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:34,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:34,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821185865] [2024-10-24 05:00:34,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821185865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:34,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:34,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 05:00:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992118589] [2024-10-24 05:00:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:34,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 05:00:34,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:34,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 05:00:34,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:00:34,972 INFO L87 Difference]: Start difference. First operand 1232 states and 1673 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:35,248 INFO L93 Difference]: Finished difference Result 2140 states and 2937 transitions. [2024-10-24 05:00:35,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 05:00:35,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:35,259 INFO L225 Difference]: With dead ends: 2140 [2024-10-24 05:00:35,259 INFO L226 Difference]: Without dead ends: 1853 [2024-10-24 05:00:35,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:00:35,261 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 183 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:35,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 976 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-10-24 05:00:35,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1736. [2024-10-24 05:00:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1735 states have (on average 1.364265129682997) internal successors, (2367), 1735 states have internal predecessors, (2367), 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) [2024-10-24 05:00:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2367 transitions. [2024-10-24 05:00:35,286 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2367 transitions. Word has length 56 [2024-10-24 05:00:35,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:35,286 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2367 transitions. [2024-10-24 05:00:35,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2367 transitions. [2024-10-24 05:00:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 05:00:35,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:35,290 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] [2024-10-24 05:00:35,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 05:00:35,290 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:35,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:35,290 INFO L85 PathProgramCache]: Analyzing trace with hash 300537144, now seen corresponding path program 1 times [2024-10-24 05:00:35,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:35,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691779581] [2024-10-24 05:00:35,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:35,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:35,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:35,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:35,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691779581] [2024-10-24 05:00:35,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691779581] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 05:00:35,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544073175] [2024-10-24 05:00:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:35,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:35,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:00:35,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 05:00:35,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 05:00:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:35,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 05:00:35,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 05:00:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:36,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 05:00:36,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544073175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:36,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 05:00:36,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2024-10-24 05:00:36,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90725033] [2024-10-24 05:00:36,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:36,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 05:00:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:36,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 05:00:36,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:00:36,061 INFO L87 Difference]: Start difference. First operand 1736 states and 2367 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:36,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:36,272 INFO L93 Difference]: Finished difference Result 2201 states and 3046 transitions. [2024-10-24 05:00:36,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 05:00:36,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 05:00:36,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:36,277 INFO L225 Difference]: With dead ends: 2201 [2024-10-24 05:00:36,277 INFO L226 Difference]: Without dead ends: 1758 [2024-10-24 05:00:36,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:00:36,279 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 168 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:36,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 630 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2024-10-24 05:00:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1749. [2024-10-24 05:00:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1748 states have (on average 1.3649885583524028) internal successors, (2386), 1748 states have internal predecessors, (2386), 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) [2024-10-24 05:00:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2386 transitions. [2024-10-24 05:00:36,301 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2386 transitions. Word has length 56 [2024-10-24 05:00:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:36,301 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2386 transitions. [2024-10-24 05:00:36,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 05:00:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2386 transitions. [2024-10-24 05:00:36,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:36,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:36,306 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] [2024-10-24 05:00:36,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 05:00:36,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:36,511 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:36,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1652151196, now seen corresponding path program 1 times [2024-10-24 05:00:36,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:36,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707039375] [2024-10-24 05:00:36,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:36,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:37,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707039375] [2024-10-24 05:00:37,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707039375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:37,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 05:00:37,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501447342] [2024-10-24 05:00:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:37,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 05:00:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:37,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 05:00:37,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-10-24 05:00:37,350 INFO L87 Difference]: Start difference. First operand 1749 states and 2386 transitions. Second operand has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 18 states have internal predecessors, (57), 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) [2024-10-24 05:00:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:37,788 INFO L93 Difference]: Finished difference Result 2860 states and 3966 transitions. [2024-10-24 05:00:37,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 05:00:37,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 18 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:37,799 INFO L225 Difference]: With dead ends: 2860 [2024-10-24 05:00:37,803 INFO L226 Difference]: Without dead ends: 2407 [2024-10-24 05:00:37,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:37,805 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 311 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:37,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1802 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 05:00:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2024-10-24 05:00:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 1807. [2024-10-24 05:00:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1806 states have (on average 1.3648947951273533) internal successors, (2465), 1806 states have internal predecessors, (2465), 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) [2024-10-24 05:00:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2465 transitions. [2024-10-24 05:00:37,865 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2465 transitions. Word has length 57 [2024-10-24 05:00:37,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:37,865 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 2465 transitions. [2024-10-24 05:00:37,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 18 states have internal predecessors, (57), 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) [2024-10-24 05:00:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2465 transitions. [2024-10-24 05:00:37,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:37,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:37,872 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] [2024-10-24 05:00:37,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 05:00:37,873 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:37,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:37,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1293402945, now seen corresponding path program 1 times [2024-10-24 05:00:37,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:37,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672408267] [2024-10-24 05:00:37,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:37,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:38,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:38,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672408267] [2024-10-24 05:00:38,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672408267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:38,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:38,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:00:38,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080561446] [2024-10-24 05:00:38,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:38,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:00:38,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:38,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:00:38,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:00:38,661 INFO L87 Difference]: Start difference. First operand 1807 states and 2465 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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) [2024-10-24 05:00:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:38,953 INFO L93 Difference]: Finished difference Result 2564 states and 3546 transitions. [2024-10-24 05:00:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:00:38,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:38,960 INFO L225 Difference]: With dead ends: 2564 [2024-10-24 05:00:38,960 INFO L226 Difference]: Without dead ends: 2089 [2024-10-24 05:00:38,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:00:38,963 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 140 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:38,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 682 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-10-24 05:00:38,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1794. [2024-10-24 05:00:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1793 states have (on average 1.3575013943112102) internal successors, (2434), 1793 states have internal predecessors, (2434), 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) [2024-10-24 05:00:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2434 transitions. [2024-10-24 05:00:39,002 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2434 transitions. Word has length 57 [2024-10-24 05:00:39,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:39,002 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2434 transitions. [2024-10-24 05:00:39,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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) [2024-10-24 05:00:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2434 transitions. [2024-10-24 05:00:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:39,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:39,006 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] [2024-10-24 05:00:39,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 05:00:39,006 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:39,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1009880056, now seen corresponding path program 1 times [2024-10-24 05:00:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699616583] [2024-10-24 05:00:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:39,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:39,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699616583] [2024-10-24 05:00:39,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699616583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:39,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:39,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 05:00:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638473057] [2024-10-24 05:00:39,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:39,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 05:00:39,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:39,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 05:00:39,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:00:39,262 INFO L87 Difference]: Start difference. First operand 1794 states and 2434 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-10-24 05:00:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:39,332 INFO L93 Difference]: Finished difference Result 2343 states and 3214 transitions. [2024-10-24 05:00:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 05:00:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:39,338 INFO L225 Difference]: With dead ends: 2343 [2024-10-24 05:00:39,338 INFO L226 Difference]: Without dead ends: 1880 [2024-10-24 05:00:39,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:00:39,341 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 33 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:39,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 783 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:39,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-10-24 05:00:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1829. [2024-10-24 05:00:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1828 states have (on average 1.3550328227571116) internal successors, (2477), 1828 states have internal predecessors, (2477), 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) [2024-10-24 05:00:39,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2477 transitions. [2024-10-24 05:00:39,368 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2477 transitions. Word has length 57 [2024-10-24 05:00:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:39,368 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2477 transitions. [2024-10-24 05:00:39,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-10-24 05:00:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2477 transitions. [2024-10-24 05:00:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:39,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:39,372 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] [2024-10-24 05:00:39,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 05:00:39,373 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1508999287, now seen corresponding path program 1 times [2024-10-24 05:00:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:39,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538542721] [2024-10-24 05:00:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:39,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:40,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:40,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538542721] [2024-10-24 05:00:40,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538542721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:40,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:40,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-10-24 05:00:40,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750995855] [2024-10-24 05:00:40,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:40,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 05:00:40,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:40,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 05:00:40,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2024-10-24 05:00:40,957 INFO L87 Difference]: Start difference. First operand 1829 states and 2477 transitions. Second operand has 28 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 27 states have internal predecessors, (57), 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) [2024-10-24 05:00:41,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:41,821 INFO L93 Difference]: Finished difference Result 2715 states and 3716 transitions. [2024-10-24 05:00:41,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-24 05:00:41,821 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 27 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:41,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:41,830 INFO L225 Difference]: With dead ends: 2715 [2024-10-24 05:00:41,830 INFO L226 Difference]: Without dead ends: 2232 [2024-10-24 05:00:41,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=956, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 05:00:41,836 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 151 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:41,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1490 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 05:00:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-10-24 05:00:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1978. [2024-10-24 05:00:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.3555892766818411) internal successors, (2680), 1977 states have internal predecessors, (2680), 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) [2024-10-24 05:00:41,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2680 transitions. [2024-10-24 05:00:41,894 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2680 transitions. Word has length 57 [2024-10-24 05:00:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:41,895 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2680 transitions. [2024-10-24 05:00:41,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 27 states have internal predecessors, (57), 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) [2024-10-24 05:00:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2680 transitions. [2024-10-24 05:00:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:41,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:41,898 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] [2024-10-24 05:00:41,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 05:00:41,902 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:41,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1548685677, now seen corresponding path program 1 times [2024-10-24 05:00:41,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:41,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619097681] [2024-10-24 05:00:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:42,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619097681] [2024-10-24 05:00:42,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619097681] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 05:00:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584954229] [2024-10-24 05:00:42,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:42,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:00:42,202 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 05:00:42,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 05:00:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:42,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-24 05:00:42,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 05:00:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:42,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 05:00:42,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584954229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:42,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 05:00:42,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 19 [2024-10-24 05:00:42,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780353829] [2024-10-24 05:00:42,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:42,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 05:00:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:42,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 05:00:42,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:42,746 INFO L87 Difference]: Start difference. First operand 1978 states and 2680 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-10-24 05:00:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:42,901 INFO L93 Difference]: Finished difference Result 2840 states and 3900 transitions. [2024-10-24 05:00:42,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 05:00:42,902 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:42,911 INFO L225 Difference]: With dead ends: 2840 [2024-10-24 05:00:42,912 INFO L226 Difference]: Without dead ends: 2327 [2024-10-24 05:00:42,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:42,918 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 193 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:42,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1031 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2024-10-24 05:00:42,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2170. [2024-10-24 05:00:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.3563854310742278) internal successors, (2942), 2169 states have internal predecessors, (2942), 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) [2024-10-24 05:00:42,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2942 transitions. [2024-10-24 05:00:42,950 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2942 transitions. Word has length 57 [2024-10-24 05:00:42,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:42,950 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 2942 transitions. [2024-10-24 05:00:42,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-10-24 05:00:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2942 transitions. [2024-10-24 05:00:42,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:42,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:42,954 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] [2024-10-24 05:00:42,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 05:00:43,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-24 05:00:43,159 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:43,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash -457050595, now seen corresponding path program 1 times [2024-10-24 05:00:43,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:43,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727304230] [2024-10-24 05:00:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:44,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:44,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727304230] [2024-10-24 05:00:44,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727304230] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 05:00:44,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186816605] [2024-10-24 05:00:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:44,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:44,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:00:44,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 05:00:44,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 05:00:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:44,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-24 05:00:44,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 05:00:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:45,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 05:00:45,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186816605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:45,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 05:00:45,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [23] total 30 [2024-10-24 05:00:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351716281] [2024-10-24 05:00:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:45,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 05:00:45,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:45,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 05:00:45,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=848, Unknown=0, NotChecked=0, Total=930 [2024-10-24 05:00:45,277 INFO L87 Difference]: Start difference. First operand 2170 states and 2942 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 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) [2024-10-24 05:00:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:45,687 INFO L93 Difference]: Finished difference Result 2846 states and 3912 transitions. [2024-10-24 05:00:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 05:00:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:45,697 INFO L225 Difference]: With dead ends: 2846 [2024-10-24 05:00:45,701 INFO L226 Difference]: Without dead ends: 2234 [2024-10-24 05:00:45,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2024-10-24 05:00:45,710 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 148 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:45,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 732 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2024-10-24 05:00:45,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2164. [2024-10-24 05:00:45,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 1.3546000924641701) internal successors, (2930), 2163 states have internal predecessors, (2930), 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) [2024-10-24 05:00:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 2930 transitions. [2024-10-24 05:00:45,769 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 2930 transitions. Word has length 57 [2024-10-24 05:00:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:45,773 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 2930 transitions. [2024-10-24 05:00:45,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 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) [2024-10-24 05:00:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 2930 transitions. [2024-10-24 05:00:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:45,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:45,780 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] [2024-10-24 05:00:45,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 05:00:45,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 05:00:45,985 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:45,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash 395591332, now seen corresponding path program 1 times [2024-10-24 05:00:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145706837] [2024-10-24 05:00:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:46,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:46,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145706837] [2024-10-24 05:00:46,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145706837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:46,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:46,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:00:46,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117640260] [2024-10-24 05:00:46,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:46,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 05:00:46,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:46,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 05:00:46,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:00:46,706 INFO L87 Difference]: Start difference. First operand 2164 states and 2930 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 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) [2024-10-24 05:00:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:47,172 INFO L93 Difference]: Finished difference Result 3305 states and 4534 transitions. [2024-10-24 05:00:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 05:00:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:47,178 INFO L225 Difference]: With dead ends: 3305 [2024-10-24 05:00:47,178 INFO L226 Difference]: Without dead ends: 2705 [2024-10-24 05:00:47,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-24 05:00:47,183 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 367 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:47,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1552 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 05:00:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-10-24 05:00:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2440. [2024-10-24 05:00:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2439 states have (on average 1.3567035670356704) internal successors, (3309), 2439 states have internal predecessors, (3309), 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) [2024-10-24 05:00:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3309 transitions. [2024-10-24 05:00:47,245 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3309 transitions. Word has length 57 [2024-10-24 05:00:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:47,245 INFO L471 AbstractCegarLoop]: Abstraction has 2440 states and 3309 transitions. [2024-10-24 05:00:47,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 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) [2024-10-24 05:00:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3309 transitions. [2024-10-24 05:00:47,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:47,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:47,256 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] [2024-10-24 05:00:47,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 05:00:47,256 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:47,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:47,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1363165644, now seen corresponding path program 1 times [2024-10-24 05:00:47,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:47,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572955379] [2024-10-24 05:00:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:47,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:48,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:48,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572955379] [2024-10-24 05:00:48,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572955379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:48,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:48,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:00:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322015742] [2024-10-24 05:00:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:48,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 05:00:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 05:00:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:48,236 INFO L87 Difference]: Start difference. First operand 2440 states and 3309 transitions. Second operand has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 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) [2024-10-24 05:00:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:48,551 INFO L93 Difference]: Finished difference Result 3492 states and 4793 transitions. [2024-10-24 05:00:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:00:48,551 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:48,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:48,560 INFO L225 Difference]: With dead ends: 3492 [2024-10-24 05:00:48,560 INFO L226 Difference]: Without dead ends: 2797 [2024-10-24 05:00:48,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:48,562 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 168 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:48,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1107 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2024-10-24 05:00:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2558. [2024-10-24 05:00:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2557 states have (on average 1.355885803676183) internal successors, (3467), 2557 states have internal predecessors, (3467), 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) [2024-10-24 05:00:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3467 transitions. [2024-10-24 05:00:48,604 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3467 transitions. Word has length 57 [2024-10-24 05:00:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:48,605 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3467 transitions. [2024-10-24 05:00:48,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 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) [2024-10-24 05:00:48,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3467 transitions. [2024-10-24 05:00:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:48,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:48,609 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] [2024-10-24 05:00:48,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 05:00:48,610 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:48,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1195582482, now seen corresponding path program 1 times [2024-10-24 05:00:48,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:48,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26998406] [2024-10-24 05:00:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:48,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:49,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:49,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26998406] [2024-10-24 05:00:49,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26998406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:49,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:49,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 05:00:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288557337] [2024-10-24 05:00:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:49,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 05:00:49,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:49,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 05:00:49,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:49,138 INFO L87 Difference]: Start difference. First operand 2558 states and 3467 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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) [2024-10-24 05:00:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:49,287 INFO L93 Difference]: Finished difference Result 3492 states and 4792 transitions. [2024-10-24 05:00:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:00:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:49,293 INFO L225 Difference]: With dead ends: 3492 [2024-10-24 05:00:49,294 INFO L226 Difference]: Without dead ends: 2793 [2024-10-24 05:00:49,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:00:49,297 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:49,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1441 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-10-24 05:00:49,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2620. [2024-10-24 05:00:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2619 states have (on average 1.353570064910271) internal successors, (3545), 2619 states have internal predecessors, (3545), 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) [2024-10-24 05:00:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3545 transitions. [2024-10-24 05:00:49,325 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3545 transitions. Word has length 57 [2024-10-24 05:00:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:49,325 INFO L471 AbstractCegarLoop]: Abstraction has 2620 states and 3545 transitions. [2024-10-24 05:00:49,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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) [2024-10-24 05:00:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3545 transitions. [2024-10-24 05:00:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:49,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:49,328 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] [2024-10-24 05:00:49,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 05:00:49,328 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:49,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2056461945, now seen corresponding path program 1 times [2024-10-24 05:00:49,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:49,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410450595] [2024-10-24 05:00:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:49,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410450595] [2024-10-24 05:00:49,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410450595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:49,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:49,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 05:00:49,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38208558] [2024-10-24 05:00:49,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:49,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 05:00:49,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 05:00:49,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:00:49,855 INFO L87 Difference]: Start difference. First operand 2620 states and 3545 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-10-24 05:00:50,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:50,000 INFO L93 Difference]: Finished difference Result 3516 states and 4802 transitions. [2024-10-24 05:00:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 05:00:50,025 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:50,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:50,029 INFO L225 Difference]: With dead ends: 3516 [2024-10-24 05:00:50,029 INFO L226 Difference]: Without dead ends: 2809 [2024-10-24 05:00:50,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:00:50,031 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 146 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:50,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1259 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2024-10-24 05:00:50,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2677. [2024-10-24 05:00:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2676 states have (on average 1.350896860986547) internal successors, (3615), 2676 states have internal predecessors, (3615), 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) [2024-10-24 05:00:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3615 transitions. [2024-10-24 05:00:50,093 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3615 transitions. Word has length 57 [2024-10-24 05:00:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:50,095 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 3615 transitions. [2024-10-24 05:00:50,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-10-24 05:00:50,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3615 transitions. [2024-10-24 05:00:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:50,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:50,105 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] [2024-10-24 05:00:50,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 05:00:50,106 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:50,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash 945423027, now seen corresponding path program 1 times [2024-10-24 05:00:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:50,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636807880] [2024-10-24 05:00:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:50,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:50,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:50,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636807880] [2024-10-24 05:00:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636807880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:50,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:50,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 05:00:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205272219] [2024-10-24 05:00:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:50,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 05:00:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 05:00:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:00:50,483 INFO L87 Difference]: Start difference. First operand 2677 states and 3615 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-10-24 05:00:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:50,720 INFO L93 Difference]: Finished difference Result 3417 states and 4681 transitions. [2024-10-24 05:00:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 05:00:50,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:50,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:50,724 INFO L225 Difference]: With dead ends: 3417 [2024-10-24 05:00:50,724 INFO L226 Difference]: Without dead ends: 2722 [2024-10-24 05:00:50,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:00:50,725 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 179 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:50,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 635 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:50,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-10-24 05:00:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2615. [2024-10-24 05:00:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 1.349655700076511) internal successors, (3528), 2614 states have internal predecessors, (3528), 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) [2024-10-24 05:00:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 3528 transitions. [2024-10-24 05:00:50,750 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 3528 transitions. Word has length 57 [2024-10-24 05:00:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:50,751 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 3528 transitions. [2024-10-24 05:00:50,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-10-24 05:00:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 3528 transitions. [2024-10-24 05:00:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:50,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:50,754 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] [2024-10-24 05:00:50,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 05:00:50,754 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:50,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:50,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2074842673, now seen corresponding path program 1 times [2024-10-24 05:00:50,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:50,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100735471] [2024-10-24 05:00:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:50,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:51,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:51,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100735471] [2024-10-24 05:00:51,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100735471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:51,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:51,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:00:51,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304436014] [2024-10-24 05:00:51,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:51,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:00:51,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:51,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:00:51,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:51,664 INFO L87 Difference]: Start difference. First operand 2615 states and 3528 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 20 states have internal predecessors, (57), 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) [2024-10-24 05:00:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:51,955 INFO L93 Difference]: Finished difference Result 3444 states and 4697 transitions. [2024-10-24 05:00:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:00:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 20 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:51,959 INFO L225 Difference]: With dead ends: 3444 [2024-10-24 05:00:51,959 INFO L226 Difference]: Without dead ends: 2749 [2024-10-24 05:00:51,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:51,961 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 182 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:51,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1432 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2024-10-24 05:00:52,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2598. [2024-10-24 05:00:52,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2597 states have (on average 1.3507893723527147) internal successors, (3508), 2597 states have internal predecessors, (3508), 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) [2024-10-24 05:00:52,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3508 transitions. [2024-10-24 05:00:52,027 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3508 transitions. Word has length 57 [2024-10-24 05:00:52,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:52,027 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 3508 transitions. [2024-10-24 05:00:52,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 20 states have internal predecessors, (57), 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) [2024-10-24 05:00:52,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3508 transitions. [2024-10-24 05:00:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 05:00:52,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:52,035 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] [2024-10-24 05:00:52,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 05:00:52,036 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:52,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:52,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1880770713, now seen corresponding path program 1 times [2024-10-24 05:00:52,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:52,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118688875] [2024-10-24 05:00:52,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:52,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:53,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:53,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118688875] [2024-10-24 05:00:53,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118688875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:53,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-24 05:00:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592799218] [2024-10-24 05:00:53,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:53,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 05:00:53,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:53,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 05:00:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:00:53,016 INFO L87 Difference]: Start difference. First operand 2598 states and 3508 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 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) [2024-10-24 05:00:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:53,445 INFO L93 Difference]: Finished difference Result 4187 states and 5753 transitions. [2024-10-24 05:00:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 05:00:53,445 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 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 57 [2024-10-24 05:00:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:53,451 INFO L225 Difference]: With dead ends: 4187 [2024-10-24 05:00:53,451 INFO L226 Difference]: Without dead ends: 3492 [2024-10-24 05:00:53,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2024-10-24 05:00:53,454 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 471 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:53,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1772 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:00:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2024-10-24 05:00:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 2693. [2024-10-24 05:00:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2692 states have (on average 1.3525260029717683) internal successors, (3641), 2692 states have internal predecessors, (3641), 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) [2024-10-24 05:00:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3641 transitions. [2024-10-24 05:00:53,504 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3641 transitions. Word has length 57 [2024-10-24 05:00:53,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:53,504 INFO L471 AbstractCegarLoop]: Abstraction has 2693 states and 3641 transitions. [2024-10-24 05:00:53,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 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) [2024-10-24 05:00:53,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3641 transitions. [2024-10-24 05:00:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:53,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:53,507 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] [2024-10-24 05:00:53,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 05:00:53,507 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:53,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:53,508 INFO L85 PathProgramCache]: Analyzing trace with hash 823558942, now seen corresponding path program 1 times [2024-10-24 05:00:53,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:53,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312271749] [2024-10-24 05:00:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:54,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:54,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312271749] [2024-10-24 05:00:54,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312271749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:54,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:54,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:00:54,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282012254] [2024-10-24 05:00:54,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:54,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:00:54,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:54,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:00:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:54,164 INFO L87 Difference]: Start difference. First operand 2693 states and 3641 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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) [2024-10-24 05:00:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:54,422 INFO L93 Difference]: Finished difference Result 3603 states and 4937 transitions. [2024-10-24 05:00:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 05:00:54,422 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:54,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:54,427 INFO L225 Difference]: With dead ends: 3603 [2024-10-24 05:00:54,427 INFO L226 Difference]: Without dead ends: 2850 [2024-10-24 05:00:54,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:00:54,429 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 176 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:54,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1556 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-10-24 05:00:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2678. [2024-10-24 05:00:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2677 states have (on average 1.3530070974971984) internal successors, (3622), 2677 states have internal predecessors, (3622), 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) [2024-10-24 05:00:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3622 transitions. [2024-10-24 05:00:54,453 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3622 transitions. Word has length 58 [2024-10-24 05:00:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:54,453 INFO L471 AbstractCegarLoop]: Abstraction has 2678 states and 3622 transitions. [2024-10-24 05:00:54,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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) [2024-10-24 05:00:54,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3622 transitions. [2024-10-24 05:00:54,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:54,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:54,456 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] [2024-10-24 05:00:54,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 05:00:54,457 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:54,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:54,457 INFO L85 PathProgramCache]: Analyzing trace with hash 884410996, now seen corresponding path program 1 times [2024-10-24 05:00:54,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:54,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201975461] [2024-10-24 05:00:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:54,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:55,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:55,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201975461] [2024-10-24 05:00:55,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201975461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:55,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:55,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:00:55,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466668933] [2024-10-24 05:00:55,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:55,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 05:00:55,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:55,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 05:00:55,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:55,089 INFO L87 Difference]: Start difference. First operand 2678 states and 3622 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-10-24 05:00:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:55,226 INFO L93 Difference]: Finished difference Result 3573 states and 4904 transitions. [2024-10-24 05:00:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:00:55,227 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:55,234 INFO L225 Difference]: With dead ends: 3573 [2024-10-24 05:00:55,234 INFO L226 Difference]: Without dead ends: 2820 [2024-10-24 05:00:55,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-24 05:00:55,240 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 268 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:55,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1126 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:00:55,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2024-10-24 05:00:55,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2646. [2024-10-24 05:00:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2645 states have (on average 1.3527410207939508) internal successors, (3578), 2645 states have internal predecessors, (3578), 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) [2024-10-24 05:00:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3578 transitions. [2024-10-24 05:00:55,289 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3578 transitions. Word has length 58 [2024-10-24 05:00:55,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:55,293 INFO L471 AbstractCegarLoop]: Abstraction has 2646 states and 3578 transitions. [2024-10-24 05:00:55,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-10-24 05:00:55,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3578 transitions. [2024-10-24 05:00:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:55,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:55,297 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] [2024-10-24 05:00:55,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 05:00:55,297 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:55,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2037205289, now seen corresponding path program 1 times [2024-10-24 05:00:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:55,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819178668] [2024-10-24 05:00:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:56,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:56,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819178668] [2024-10-24 05:00:56,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819178668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:56,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:56,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-24 05:00:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375644449] [2024-10-24 05:00:56,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:56,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 05:00:56,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:56,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 05:00:56,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2024-10-24 05:00:56,835 INFO L87 Difference]: Start difference. First operand 2646 states and 3578 transitions. Second operand has 25 states, 25 states have (on average 2.32) internal successors, (58), 24 states have internal predecessors, (58), 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) [2024-10-24 05:00:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:57,381 INFO L93 Difference]: Finished difference Result 4129 states and 5634 transitions. [2024-10-24 05:00:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 05:00:57,381 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 24 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:57,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:57,386 INFO L225 Difference]: With dead ends: 4129 [2024-10-24 05:00:57,386 INFO L226 Difference]: Without dead ends: 3376 [2024-10-24 05:00:57,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2024-10-24 05:00:57,387 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 176 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:57,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1372 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 05:00:57,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2024-10-24 05:00:57,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 2794. [2024-10-24 05:00:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 1.351951306838525) internal successors, (3776), 2793 states have internal predecessors, (3776), 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) [2024-10-24 05:00:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3776 transitions. [2024-10-24 05:00:57,411 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3776 transitions. Word has length 58 [2024-10-24 05:00:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:57,412 INFO L471 AbstractCegarLoop]: Abstraction has 2794 states and 3776 transitions. [2024-10-24 05:00:57,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 24 states have internal predecessors, (58), 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) [2024-10-24 05:00:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3776 transitions. [2024-10-24 05:00:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:57,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:57,415 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] [2024-10-24 05:00:57,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 05:00:57,415 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:57,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1907005583, now seen corresponding path program 1 times [2024-10-24 05:00:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293963923] [2024-10-24 05:00:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:57,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:57,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293963923] [2024-10-24 05:00:57,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293963923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:57,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:57,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:00:57,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489216336] [2024-10-24 05:00:57,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:57,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 05:00:57,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:57,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 05:00:57,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:00:57,557 INFO L87 Difference]: Start difference. First operand 2794 states and 3776 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-24 05:00:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:57,603 INFO L93 Difference]: Finished difference Result 4056 states and 5490 transitions. [2024-10-24 05:00:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 05:00:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:57,607 INFO L225 Difference]: With dead ends: 4056 [2024-10-24 05:00:57,607 INFO L226 Difference]: Without dead ends: 2687 [2024-10-24 05:00:57,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:00:57,610 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 35 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:57,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 456 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:57,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2024-10-24 05:00:57,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2665. [2024-10-24 05:00:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 1.3340840840840842) internal successors, (3554), 2664 states have internal predecessors, (3554), 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) [2024-10-24 05:00:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3554 transitions. [2024-10-24 05:00:57,634 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3554 transitions. Word has length 58 [2024-10-24 05:00:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:57,634 INFO L471 AbstractCegarLoop]: Abstraction has 2665 states and 3554 transitions. [2024-10-24 05:00:57,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-24 05:00:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3554 transitions. [2024-10-24 05:00:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:57,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:57,638 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] [2024-10-24 05:00:57,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-24 05:00:57,638 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:57,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1608052211, now seen corresponding path program 1 times [2024-10-24 05:00:57,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438207236] [2024-10-24 05:00:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:57,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:57,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438207236] [2024-10-24 05:00:57,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438207236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:57,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:57,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:00:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010638943] [2024-10-24 05:00:57,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:57,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 05:00:57,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 05:00:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:00:57,812 INFO L87 Difference]: Start difference. First operand 2665 states and 3554 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-24 05:00:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:57,842 INFO L93 Difference]: Finished difference Result 3546 states and 4797 transitions. [2024-10-24 05:00:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 05:00:57,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:57,845 INFO L225 Difference]: With dead ends: 3546 [2024-10-24 05:00:57,845 INFO L226 Difference]: Without dead ends: 2202 [2024-10-24 05:00:57,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:00:57,848 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 31 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:57,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2024-10-24 05:00:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2194. [2024-10-24 05:00:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2193 states have (on average 1.3237574099407206) internal successors, (2903), 2193 states have internal predecessors, (2903), 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) [2024-10-24 05:00:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2903 transitions. [2024-10-24 05:00:57,865 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2903 transitions. Word has length 58 [2024-10-24 05:00:57,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:57,865 INFO L471 AbstractCegarLoop]: Abstraction has 2194 states and 2903 transitions. [2024-10-24 05:00:57,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-24 05:00:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2903 transitions. [2024-10-24 05:00:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:57,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:57,868 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] [2024-10-24 05:00:57,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-24 05:00:57,869 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:57,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash -944276663, now seen corresponding path program 1 times [2024-10-24 05:00:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979509150] [2024-10-24 05:00:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:58,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:58,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979509150] [2024-10-24 05:00:58,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979509150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:58,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:58,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-24 05:00:58,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382010470] [2024-10-24 05:00:58,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:58,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 05:00:58,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 05:00:58,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:00:58,805 INFO L87 Difference]: Start difference. First operand 2194 states and 2903 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 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) [2024-10-24 05:00:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:59,027 INFO L93 Difference]: Finished difference Result 3069 states and 4167 transitions. [2024-10-24 05:00:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:00:59,028 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:59,030 INFO L225 Difference]: With dead ends: 3069 [2024-10-24 05:00:59,030 INFO L226 Difference]: Without dead ends: 2316 [2024-10-24 05:00:59,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:00:59,032 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 179 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:59,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1566 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:00:59,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-10-24 05:00:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2201. [2024-10-24 05:00:59,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2200 states have (on average 1.3236363636363637) internal successors, (2912), 2200 states have internal predecessors, (2912), 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) [2024-10-24 05:00:59,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2912 transitions. [2024-10-24 05:00:59,056 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2912 transitions. Word has length 58 [2024-10-24 05:00:59,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:59,056 INFO L471 AbstractCegarLoop]: Abstraction has 2201 states and 2912 transitions. [2024-10-24 05:00:59,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 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) [2024-10-24 05:00:59,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2912 transitions. [2024-10-24 05:00:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:59,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:59,064 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] [2024-10-24 05:00:59,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-24 05:00:59,064 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:59,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1637836467, now seen corresponding path program 1 times [2024-10-24 05:00:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765763132] [2024-10-24 05:00:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:00:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:00:59,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:00:59,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765763132] [2024-10-24 05:00:59,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765763132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:00:59,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:00:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 05:00:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751257264] [2024-10-24 05:00:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:00:59,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 05:00:59,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:00:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 05:00:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:00:59,481 INFO L87 Difference]: Start difference. First operand 2201 states and 2912 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2024-10-24 05:00:59,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:00:59,533 INFO L93 Difference]: Finished difference Result 3112 states and 4225 transitions. [2024-10-24 05:00:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 05:00:59,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 58 [2024-10-24 05:00:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:00:59,536 INFO L225 Difference]: With dead ends: 3112 [2024-10-24 05:00:59,536 INFO L226 Difference]: Without dead ends: 2302 [2024-10-24 05:00:59,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:00:59,538 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 34 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:00:59,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 870 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:00:59,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-10-24 05:00:59,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2092. [2024-10-24 05:00:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 2091 states have (on average 1.3323768531802964) internal successors, (2786), 2091 states have internal predecessors, (2786), 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) [2024-10-24 05:00:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2786 transitions. [2024-10-24 05:00:59,557 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2786 transitions. Word has length 58 [2024-10-24 05:00:59,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:00:59,557 INFO L471 AbstractCegarLoop]: Abstraction has 2092 states and 2786 transitions. [2024-10-24 05:00:59,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2024-10-24 05:00:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2786 transitions. [2024-10-24 05:00:59,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:00:59,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:00:59,559 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] [2024-10-24 05:00:59,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-24 05:00:59,560 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:00:59,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:00:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash -862647323, now seen corresponding path program 1 times [2024-10-24 05:00:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:00:59,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733046144] [2024-10-24 05:00:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:00:59,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:00:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:00,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:00,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733046144] [2024-10-24 05:01:00,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733046144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:00,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:00,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 05:01:00,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634987225] [2024-10-24 05:01:00,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:00,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:01:00,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:00,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:01:00,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:01:00,055 INFO L87 Difference]: Start difference. First operand 2092 states and 2786 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 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) [2024-10-24 05:01:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:00,232 INFO L93 Difference]: Finished difference Result 3255 states and 4345 transitions. [2024-10-24 05:01:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:01:00,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:00,235 INFO L225 Difference]: With dead ends: 3255 [2024-10-24 05:01:00,235 INFO L226 Difference]: Without dead ends: 2392 [2024-10-24 05:01:00,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:01:00,236 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 45 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:00,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 837 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:01:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-10-24 05:01:00,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2106. [2024-10-24 05:01:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2105 states have (on average 1.3268408551068884) internal successors, (2793), 2105 states have internal predecessors, (2793), 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) [2024-10-24 05:01:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2793 transitions. [2024-10-24 05:01:00,252 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2793 transitions. Word has length 58 [2024-10-24 05:01:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:00,252 INFO L471 AbstractCegarLoop]: Abstraction has 2106 states and 2793 transitions. [2024-10-24 05:01:00,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 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) [2024-10-24 05:01:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2793 transitions. [2024-10-24 05:01:00,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:00,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:00,258 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] [2024-10-24 05:01:00,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-24 05:01:00,259 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:00,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:00,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1572717228, now seen corresponding path program 1 times [2024-10-24 05:01:00,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:00,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447605167] [2024-10-24 05:01:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:00,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:00,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:00,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447605167] [2024-10-24 05:01:00,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447605167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:00,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:00,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 05:01:00,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423576855] [2024-10-24 05:01:00,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:00,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 05:01:00,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:00,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 05:01:00,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:01:00,736 INFO L87 Difference]: Start difference. First operand 2106 states and 2793 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2024-10-24 05:01:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:00,846 INFO L93 Difference]: Finished difference Result 3426 states and 4619 transitions. [2024-10-24 05:01:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 05:01:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:00,849 INFO L225 Difference]: With dead ends: 3426 [2024-10-24 05:01:00,849 INFO L226 Difference]: Without dead ends: 2602 [2024-10-24 05:01:00,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:01:00,856 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 50 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:00,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1013 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-10-24 05:01:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2429. [2024-10-24 05:01:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2428 states have (on average 1.3134266886326194) internal successors, (3189), 2428 states have internal predecessors, (3189), 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) [2024-10-24 05:01:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3189 transitions. [2024-10-24 05:01:00,901 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3189 transitions. Word has length 58 [2024-10-24 05:01:00,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:00,901 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3189 transitions. [2024-10-24 05:01:00,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2024-10-24 05:01:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3189 transitions. [2024-10-24 05:01:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:00,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:00,904 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] [2024-10-24 05:01:00,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-24 05:01:00,904 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:00,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:00,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1401964734, now seen corresponding path program 1 times [2024-10-24 05:01:00,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:00,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056920888] [2024-10-24 05:01:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:00,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:01,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:01,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056920888] [2024-10-24 05:01:01,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056920888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:01,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:01,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:01:01,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249391088] [2024-10-24 05:01:01,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:01,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:01:01,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:01,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:01:01,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:01,700 INFO L87 Difference]: Start difference. First operand 2429 states and 3189 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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) [2024-10-24 05:01:01,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:01,825 INFO L93 Difference]: Finished difference Result 3357 states and 4510 transitions. [2024-10-24 05:01:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 05:01:01,826 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:01,828 INFO L225 Difference]: With dead ends: 3357 [2024-10-24 05:01:01,828 INFO L226 Difference]: Without dead ends: 2604 [2024-10-24 05:01:01,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:01,837 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 176 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:01,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1295 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:01,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-10-24 05:01:01,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2432. [2024-10-24 05:01:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2431 states have (on average 1.314273961332785) internal successors, (3195), 2431 states have internal predecessors, (3195), 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) [2024-10-24 05:01:01,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3195 transitions. [2024-10-24 05:01:01,869 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3195 transitions. Word has length 58 [2024-10-24 05:01:01,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:01,869 INFO L471 AbstractCegarLoop]: Abstraction has 2432 states and 3195 transitions. [2024-10-24 05:01:01,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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) [2024-10-24 05:01:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3195 transitions. [2024-10-24 05:01:01,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:01,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:01,873 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] [2024-10-24 05:01:01,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-24 05:01:01,873 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:01,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash -475758541, now seen corresponding path program 1 times [2024-10-24 05:01:01,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:01,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942054128] [2024-10-24 05:01:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:01,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:02,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942054128] [2024-10-24 05:01:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942054128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:02,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:02,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 05:01:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770605039] [2024-10-24 05:01:02,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:02,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 05:01:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 05:01:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:02,419 INFO L87 Difference]: Start difference. First operand 2432 states and 3195 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-10-24 05:01:02,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:02,534 INFO L93 Difference]: Finished difference Result 3281 states and 4413 transitions. [2024-10-24 05:01:02,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 05:01:02,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:02,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:02,536 INFO L225 Difference]: With dead ends: 3281 [2024-10-24 05:01:02,537 INFO L226 Difference]: Without dead ends: 2500 [2024-10-24 05:01:02,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:02,538 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 51 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:02,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1176 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:02,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2024-10-24 05:01:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 2482. [2024-10-24 05:01:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 2481 states have (on average 1.3135832325675132) internal successors, (3259), 2481 states have internal predecessors, (3259), 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) [2024-10-24 05:01:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3259 transitions. [2024-10-24 05:01:02,557 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3259 transitions. Word has length 58 [2024-10-24 05:01:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:02,558 INFO L471 AbstractCegarLoop]: Abstraction has 2482 states and 3259 transitions. [2024-10-24 05:01:02,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-10-24 05:01:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3259 transitions. [2024-10-24 05:01:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:02,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:02,560 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] [2024-10-24 05:01:02,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-24 05:01:02,560 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:02,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:02,560 INFO L85 PathProgramCache]: Analyzing trace with hash -421240962, now seen corresponding path program 1 times [2024-10-24 05:01:02,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:02,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224223992] [2024-10-24 05:01:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:02,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224223992] [2024-10-24 05:01:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224223992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:01:02,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603998970] [2024-10-24 05:01:02,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:02,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 05:01:02,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:02,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 05:01:02,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:01:02,971 INFO L87 Difference]: Start difference. First operand 2482 states and 3259 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-10-24 05:01:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:03,050 INFO L93 Difference]: Finished difference Result 3261 states and 4381 transitions. [2024-10-24 05:01:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 05:01:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:03,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:03,052 INFO L225 Difference]: With dead ends: 3261 [2024-10-24 05:01:03,053 INFO L226 Difference]: Without dead ends: 2488 [2024-10-24 05:01:03,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:01:03,055 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 75 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:03,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 954 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:03,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2024-10-24 05:01:03,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2024-10-24 05:01:03,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.312022517088862) internal successors, (3263), 2487 states have internal predecessors, (3263), 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) [2024-10-24 05:01:03,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3263 transitions. [2024-10-24 05:01:03,069 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3263 transitions. Word has length 58 [2024-10-24 05:01:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:03,069 INFO L471 AbstractCegarLoop]: Abstraction has 2488 states and 3263 transitions. [2024-10-24 05:01:03,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-10-24 05:01:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3263 transitions. [2024-10-24 05:01:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:03,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:03,071 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] [2024-10-24 05:01:03,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-24 05:01:03,071 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:03,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:03,071 INFO L85 PathProgramCache]: Analyzing trace with hash -540877780, now seen corresponding path program 1 times [2024-10-24 05:01:03,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:03,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961053442] [2024-10-24 05:01:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:03,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:03,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:03,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961053442] [2024-10-24 05:01:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961053442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:03,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:03,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 05:01:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421749192] [2024-10-24 05:01:03,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:03,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 05:01:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:03,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 05:01:03,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:03,561 INFO L87 Difference]: Start difference. First operand 2488 states and 3263 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-10-24 05:01:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:03,693 INFO L93 Difference]: Finished difference Result 3377 states and 4532 transitions. [2024-10-24 05:01:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 05:01:03,693 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:03,695 INFO L225 Difference]: With dead ends: 3377 [2024-10-24 05:01:03,695 INFO L226 Difference]: Without dead ends: 2612 [2024-10-24 05:01:03,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:03,696 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 78 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:03,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1220 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2024-10-24 05:01:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2549. [2024-10-24 05:01:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2548 states have (on average 1.3096546310832025) internal successors, (3337), 2548 states have internal predecessors, (3337), 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) [2024-10-24 05:01:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3337 transitions. [2024-10-24 05:01:03,713 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3337 transitions. Word has length 58 [2024-10-24 05:01:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:03,713 INFO L471 AbstractCegarLoop]: Abstraction has 2549 states and 3337 transitions. [2024-10-24 05:01:03,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-10-24 05:01:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3337 transitions. [2024-10-24 05:01:03,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:03,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:03,715 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] [2024-10-24 05:01:03,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-24 05:01:03,715 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:03,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:03,716 INFO L85 PathProgramCache]: Analyzing trace with hash 840674657, now seen corresponding path program 1 times [2024-10-24 05:01:03,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:03,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040658029] [2024-10-24 05:01:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:03,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:04,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:04,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:04,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040658029] [2024-10-24 05:01:04,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040658029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:04,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:04,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:01:04,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112673240] [2024-10-24 05:01:04,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:04,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:01:04,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:04,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:01:04,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:01:04,042 INFO L87 Difference]: Start difference. First operand 2549 states and 3337 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2024-10-24 05:01:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:04,201 INFO L93 Difference]: Finished difference Result 3512 states and 4688 transitions. [2024-10-24 05:01:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:01:04,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:04,205 INFO L225 Difference]: With dead ends: 3512 [2024-10-24 05:01:04,205 INFO L226 Difference]: Without dead ends: 2759 [2024-10-24 05:01:04,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:01:04,206 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 162 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:04,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 702 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:04,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2024-10-24 05:01:04,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2539. [2024-10-24 05:01:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 1.3077226162332545) internal successors, (3319), 2538 states have internal predecessors, (3319), 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) [2024-10-24 05:01:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3319 transitions. [2024-10-24 05:01:04,224 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3319 transitions. Word has length 58 [2024-10-24 05:01:04,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:04,225 INFO L471 AbstractCegarLoop]: Abstraction has 2539 states and 3319 transitions. [2024-10-24 05:01:04,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2024-10-24 05:01:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3319 transitions. [2024-10-24 05:01:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:04,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:04,227 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] [2024-10-24 05:01:04,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-10-24 05:01:04,227 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:04,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1974287994, now seen corresponding path program 1 times [2024-10-24 05:01:04,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:04,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730850198] [2024-10-24 05:01:04,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:04,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:05,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:05,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730850198] [2024-10-24 05:01:05,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730850198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:05,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:05,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 05:01:05,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580571084] [2024-10-24 05:01:05,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:05,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 05:01:05,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:05,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 05:01:05,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:01:05,028 INFO L87 Difference]: Start difference. First operand 2539 states and 3319 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-10-24 05:01:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:05,444 INFO L93 Difference]: Finished difference Result 3533 states and 4728 transitions. [2024-10-24 05:01:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 05:01:05,444 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:05,447 INFO L225 Difference]: With dead ends: 3533 [2024-10-24 05:01:05,447 INFO L226 Difference]: Without dead ends: 2734 [2024-10-24 05:01:05,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:01:05,449 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 344 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:05,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1753 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2024-10-24 05:01:05,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2441. [2024-10-24 05:01:05,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2440 states have (on average 1.3065573770491803) internal successors, (3188), 2440 states have internal predecessors, (3188), 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) [2024-10-24 05:01:05,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3188 transitions. [2024-10-24 05:01:05,491 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3188 transitions. Word has length 58 [2024-10-24 05:01:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:05,494 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3188 transitions. [2024-10-24 05:01:05,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-10-24 05:01:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3188 transitions. [2024-10-24 05:01:05,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:05,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:05,497 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] [2024-10-24 05:01:05,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-10-24 05:01:05,497 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:05,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1681129946, now seen corresponding path program 1 times [2024-10-24 05:01:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428782911] [2024-10-24 05:01:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:05,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:06,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:06,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428782911] [2024-10-24 05:01:06,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428782911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:06,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:06,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 05:01:06,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108893224] [2024-10-24 05:01:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:06,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 05:01:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 05:01:06,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-24 05:01:06,167 INFO L87 Difference]: Start difference. First operand 2441 states and 3188 transitions. Second operand has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 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) [2024-10-24 05:01:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:06,560 INFO L93 Difference]: Finished difference Result 3388 states and 4508 transitions. [2024-10-24 05:01:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 05:01:06,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:06,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:06,562 INFO L225 Difference]: With dead ends: 3388 [2024-10-24 05:01:06,562 INFO L226 Difference]: Without dead ends: 2645 [2024-10-24 05:01:06,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-24 05:01:06,564 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 109 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:06,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1306 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 05:01:06,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2024-10-24 05:01:06,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2574. [2024-10-24 05:01:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2573 states have (on average 1.3031480761756704) internal successors, (3353), 2573 states have internal predecessors, (3353), 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) [2024-10-24 05:01:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3353 transitions. [2024-10-24 05:01:06,581 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3353 transitions. Word has length 58 [2024-10-24 05:01:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:06,581 INFO L471 AbstractCegarLoop]: Abstraction has 2574 states and 3353 transitions. [2024-10-24 05:01:06,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 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) [2024-10-24 05:01:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3353 transitions. [2024-10-24 05:01:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:06,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:06,583 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] [2024-10-24 05:01:06,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-10-24 05:01:06,583 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:06,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1818077126, now seen corresponding path program 1 times [2024-10-24 05:01:06,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:06,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653664545] [2024-10-24 05:01:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:06,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:07,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:07,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653664545] [2024-10-24 05:01:07,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653664545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:07,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:07,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 05:01:07,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743628623] [2024-10-24 05:01:07,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:07,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 05:01:07,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:07,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 05:01:07,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:01:07,140 INFO L87 Difference]: Start difference. First operand 2574 states and 3353 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 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) [2024-10-24 05:01:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:07,566 INFO L93 Difference]: Finished difference Result 3973 states and 5306 transitions. [2024-10-24 05:01:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 05:01:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:07,569 INFO L225 Difference]: With dead ends: 3973 [2024-10-24 05:01:07,569 INFO L226 Difference]: Without dead ends: 3232 [2024-10-24 05:01:07,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2024-10-24 05:01:07,570 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 171 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:07,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1476 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2024-10-24 05:01:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2800. [2024-10-24 05:01:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 2799 states have (on average 1.307609860664523) internal successors, (3660), 2799 states have internal predecessors, (3660), 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) [2024-10-24 05:01:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 3660 transitions. [2024-10-24 05:01:07,589 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 3660 transitions. Word has length 58 [2024-10-24 05:01:07,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:07,591 INFO L471 AbstractCegarLoop]: Abstraction has 2800 states and 3660 transitions. [2024-10-24 05:01:07,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 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) [2024-10-24 05:01:07,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 3660 transitions. [2024-10-24 05:01:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:07,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:07,593 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] [2024-10-24 05:01:07,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-10-24 05:01:07,593 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:07,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1616010707, now seen corresponding path program 1 times [2024-10-24 05:01:07,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:07,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061139291] [2024-10-24 05:01:07,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:07,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:07,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:07,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061139291] [2024-10-24 05:01:07,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061139291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:07,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:07,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 05:01:07,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129254942] [2024-10-24 05:01:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:07,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 05:01:07,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 05:01:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:01:07,714 INFO L87 Difference]: Start difference. First operand 2800 states and 3660 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-10-24 05:01:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:07,830 INFO L93 Difference]: Finished difference Result 3656 states and 4877 transitions. [2024-10-24 05:01:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 05:01:07,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:07,833 INFO L225 Difference]: With dead ends: 3656 [2024-10-24 05:01:07,833 INFO L226 Difference]: Without dead ends: 2479 [2024-10-24 05:01:07,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:01:07,835 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 126 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:07,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 362 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-10-24 05:01:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2470. [2024-10-24 05:01:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.3098420413122722) internal successors, (3234), 2469 states have internal predecessors, (3234), 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) [2024-10-24 05:01:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3234 transitions. [2024-10-24 05:01:07,883 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3234 transitions. Word has length 58 [2024-10-24 05:01:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:07,883 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3234 transitions. [2024-10-24 05:01:07,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-10-24 05:01:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3234 transitions. [2024-10-24 05:01:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:07,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:07,889 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] [2024-10-24 05:01:07,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-10-24 05:01:07,890 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:07,894 INFO L85 PathProgramCache]: Analyzing trace with hash 964760518, now seen corresponding path program 1 times [2024-10-24 05:01:07,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:07,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325797154] [2024-10-24 05:01:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:08,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:08,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325797154] [2024-10-24 05:01:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325797154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:08,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:01:08,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556264963] [2024-10-24 05:01:08,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:08,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 05:01:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:08,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 05:01:08,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:01:08,525 INFO L87 Difference]: Start difference. First operand 2470 states and 3234 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-10-24 05:01:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:08,899 INFO L93 Difference]: Finished difference Result 4260 states and 5721 transitions. [2024-10-24 05:01:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:01:08,900 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:08,904 INFO L225 Difference]: With dead ends: 4260 [2024-10-24 05:01:08,904 INFO L226 Difference]: Without dead ends: 3481 [2024-10-24 05:01:08,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-10-24 05:01:08,906 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 352 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:08,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1400 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2024-10-24 05:01:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 2531. [2024-10-24 05:01:08,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2530 states have (on average 1.3134387351778656) internal successors, (3323), 2530 states have internal predecessors, (3323), 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) [2024-10-24 05:01:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3323 transitions. [2024-10-24 05:01:08,926 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3323 transitions. Word has length 58 [2024-10-24 05:01:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:08,926 INFO L471 AbstractCegarLoop]: Abstraction has 2531 states and 3323 transitions. [2024-10-24 05:01:08,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-10-24 05:01:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3323 transitions. [2024-10-24 05:01:08,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:08,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:08,931 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] [2024-10-24 05:01:08,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-10-24 05:01:08,931 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:08,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash -333207368, now seen corresponding path program 1 times [2024-10-24 05:01:08,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:08,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409580399] [2024-10-24 05:01:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:08,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:09,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:09,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:09,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409580399] [2024-10-24 05:01:09,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409580399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:09,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:09,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-24 05:01:09,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152206661] [2024-10-24 05:01:09,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:09,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 05:01:09,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:09,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 05:01:09,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:01:09,832 INFO L87 Difference]: Start difference. First operand 2531 states and 3323 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 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) [2024-10-24 05:01:10,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:10,165 INFO L93 Difference]: Finished difference Result 3558 states and 4754 transitions. [2024-10-24 05:01:10,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 05:01:10,165 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:10,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:10,167 INFO L225 Difference]: With dead ends: 3558 [2024-10-24 05:01:10,167 INFO L226 Difference]: Without dead ends: 2764 [2024-10-24 05:01:10,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:01:10,169 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 146 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:10,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1620 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-10-24 05:01:10,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2566. [2024-10-24 05:01:10,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.3138401559454191) internal successors, (3370), 2565 states have internal predecessors, (3370), 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) [2024-10-24 05:01:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3370 transitions. [2024-10-24 05:01:10,185 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3370 transitions. Word has length 58 [2024-10-24 05:01:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:10,185 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3370 transitions. [2024-10-24 05:01:10,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 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) [2024-10-24 05:01:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3370 transitions. [2024-10-24 05:01:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:10,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:10,188 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] [2024-10-24 05:01:10,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-10-24 05:01:10,188 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:10,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:10,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1311510369, now seen corresponding path program 1 times [2024-10-24 05:01:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:10,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549105312] [2024-10-24 05:01:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:10,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549105312] [2024-10-24 05:01:10,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549105312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:10,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:10,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 05:01:10,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225795087] [2024-10-24 05:01:10,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:10,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 05:01:10,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:10,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 05:01:10,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:01:10,625 INFO L87 Difference]: Start difference. First operand 2566 states and 3370 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-10-24 05:01:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:10,961 INFO L93 Difference]: Finished difference Result 4068 states and 5451 transitions. [2024-10-24 05:01:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 05:01:10,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:10,964 INFO L225 Difference]: With dead ends: 4068 [2024-10-24 05:01:10,964 INFO L226 Difference]: Without dead ends: 3274 [2024-10-24 05:01:10,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:01:10,966 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 297 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:10,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1490 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:10,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2024-10-24 05:01:10,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 2764. [2024-10-24 05:01:10,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 1.3137893593919652) internal successors, (3630), 2763 states have internal predecessors, (3630), 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) [2024-10-24 05:01:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3630 transitions. [2024-10-24 05:01:10,985 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3630 transitions. Word has length 58 [2024-10-24 05:01:10,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:10,985 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 3630 transitions. [2024-10-24 05:01:10,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-10-24 05:01:10,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3630 transitions. [2024-10-24 05:01:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:10,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:10,987 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] [2024-10-24 05:01:10,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-10-24 05:01:10,988 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:10,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2103231658, now seen corresponding path program 1 times [2024-10-24 05:01:10,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:10,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192895507] [2024-10-24 05:01:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:11,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:11,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192895507] [2024-10-24 05:01:11,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192895507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:11,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:11,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 05:01:11,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78386039] [2024-10-24 05:01:11,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:11,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 05:01:11,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:11,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 05:01:11,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-10-24 05:01:11,858 INFO L87 Difference]: Start difference. First operand 2764 states and 3630 transitions. Second operand has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 22 states have internal predecessors, (58), 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) [2024-10-24 05:01:12,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:12,232 INFO L93 Difference]: Finished difference Result 4010 states and 5360 transitions. [2024-10-24 05:01:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 05:01:12,233 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 22 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:12,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:12,235 INFO L225 Difference]: With dead ends: 4010 [2024-10-24 05:01:12,236 INFO L226 Difference]: Without dead ends: 3116 [2024-10-24 05:01:12,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-10-24 05:01:12,237 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 108 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:12,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1783 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2024-10-24 05:01:12,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2803. [2024-10-24 05:01:12,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2802 states have (on average 1.3137044967880085) internal successors, (3681), 2802 states have internal predecessors, (3681), 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) [2024-10-24 05:01:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3681 transitions. [2024-10-24 05:01:12,256 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3681 transitions. Word has length 58 [2024-10-24 05:01:12,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:12,257 INFO L471 AbstractCegarLoop]: Abstraction has 2803 states and 3681 transitions. [2024-10-24 05:01:12,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 22 states have internal predecessors, (58), 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) [2024-10-24 05:01:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3681 transitions. [2024-10-24 05:01:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:12,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:12,259 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] [2024-10-24 05:01:12,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-10-24 05:01:12,259 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:12,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash -85863479, now seen corresponding path program 1 times [2024-10-24 05:01:12,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:12,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254858960] [2024-10-24 05:01:12,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:12,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:12,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254858960] [2024-10-24 05:01:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254858960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:12,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:01:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981181090] [2024-10-24 05:01:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:12,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 05:01:12,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 05:01:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:01:12,702 INFO L87 Difference]: Start difference. First operand 2803 states and 3681 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-10-24 05:01:13,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:13,061 INFO L93 Difference]: Finished difference Result 4467 states and 5956 transitions. [2024-10-24 05:01:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 05:01:13,061 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:13,064 INFO L225 Difference]: With dead ends: 4467 [2024-10-24 05:01:13,064 INFO L226 Difference]: Without dead ends: 3573 [2024-10-24 05:01:13,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-24 05:01:13,065 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 303 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:13,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1083 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2024-10-24 05:01:13,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3365. [2024-10-24 05:01:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 3364 states have (on average 1.3127229488703924) internal successors, (4416), 3364 states have internal predecessors, (4416), 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) [2024-10-24 05:01:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 4416 transitions. [2024-10-24 05:01:13,084 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 4416 transitions. Word has length 58 [2024-10-24 05:01:13,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:13,084 INFO L471 AbstractCegarLoop]: Abstraction has 3365 states and 4416 transitions. [2024-10-24 05:01:13,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-10-24 05:01:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 4416 transitions. [2024-10-24 05:01:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:13,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:13,086 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] [2024-10-24 05:01:13,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-10-24 05:01:13,086 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:13,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1625488184, now seen corresponding path program 1 times [2024-10-24 05:01:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:13,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297862742] [2024-10-24 05:01:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:13,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:13,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297862742] [2024-10-24 05:01:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297862742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:13,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:13,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:01:13,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944742373] [2024-10-24 05:01:13,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:13,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:01:13,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:13,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:01:13,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:13,617 INFO L87 Difference]: Start difference. First operand 3365 states and 4416 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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) [2024-10-24 05:01:13,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:13,771 INFO L93 Difference]: Finished difference Result 4505 states and 6038 transitions. [2024-10-24 05:01:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 05:01:13,772 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:13,774 INFO L225 Difference]: With dead ends: 4505 [2024-10-24 05:01:13,775 INFO L226 Difference]: Without dead ends: 3418 [2024-10-24 05:01:13,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:13,776 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 72 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:13,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1573 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:13,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2024-10-24 05:01:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 3375. [2024-10-24 05:01:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3375 states, 3374 states have (on average 1.3117960877296977) internal successors, (4426), 3374 states have internal predecessors, (4426), 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) [2024-10-24 05:01:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 4426 transitions. [2024-10-24 05:01:13,797 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 4426 transitions. Word has length 58 [2024-10-24 05:01:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:13,798 INFO L471 AbstractCegarLoop]: Abstraction has 3375 states and 4426 transitions. [2024-10-24 05:01:13,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 states have internal predecessors, (58), 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) [2024-10-24 05:01:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 4426 transitions. [2024-10-24 05:01:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 05:01:13,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:13,800 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] [2024-10-24 05:01:13,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-10-24 05:01:13,800 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:13,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:13,801 INFO L85 PathProgramCache]: Analyzing trace with hash 495938556, now seen corresponding path program 1 times [2024-10-24 05:01:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520768751] [2024-10-24 05:01:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:14,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:14,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520768751] [2024-10-24 05:01:14,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520768751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:14,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:14,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-10-24 05:01:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615000252] [2024-10-24 05:01:14,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:14,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 05:01:14,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 05:01:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2024-10-24 05:01:14,984 INFO L87 Difference]: Start difference. First operand 3375 states and 4426 transitions. Second operand has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 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) [2024-10-24 05:01:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:15,919 INFO L93 Difference]: Finished difference Result 4660 states and 6227 transitions. [2024-10-24 05:01:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-24 05:01:15,919 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 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 58 [2024-10-24 05:01:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:15,922 INFO L225 Difference]: With dead ends: 4660 [2024-10-24 05:01:15,923 INFO L226 Difference]: Without dead ends: 3573 [2024-10-24 05:01:15,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2024-10-24 05:01:15,924 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 123 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:15,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2057 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 05:01:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2024-10-24 05:01:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3395. [2024-10-24 05:01:15,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3395 states, 3394 states have (on average 1.3105480259281084) internal successors, (4448), 3394 states have internal predecessors, (4448), 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) [2024-10-24 05:01:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3395 states to 3395 states and 4448 transitions. [2024-10-24 05:01:15,947 INFO L78 Accepts]: Start accepts. Automaton has 3395 states and 4448 transitions. Word has length 58 [2024-10-24 05:01:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:15,947 INFO L471 AbstractCegarLoop]: Abstraction has 3395 states and 4448 transitions. [2024-10-24 05:01:15,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 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) [2024-10-24 05:01:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3395 states and 4448 transitions. [2024-10-24 05:01:15,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:15,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:15,950 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] [2024-10-24 05:01:15,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-10-24 05:01:15,950 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:15,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:15,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1215704074, now seen corresponding path program 1 times [2024-10-24 05:01:15,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:15,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051379810] [2024-10-24 05:01:15,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:15,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:16,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:16,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:16,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051379810] [2024-10-24 05:01:16,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051379810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:16,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:16,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 05:01:16,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27683357] [2024-10-24 05:01:16,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:16,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:01:16,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:16,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:01:16,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:01:16,331 INFO L87 Difference]: Start difference. First operand 3395 states and 4448 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 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) [2024-10-24 05:01:16,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:16,497 INFO L93 Difference]: Finished difference Result 4665 states and 6259 transitions. [2024-10-24 05:01:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 05:01:16,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:16,500 INFO L225 Difference]: With dead ends: 4665 [2024-10-24 05:01:16,500 INFO L226 Difference]: Without dead ends: 3340 [2024-10-24 05:01:16,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:01:16,502 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 132 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:16,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 551 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2024-10-24 05:01:16,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3216. [2024-10-24 05:01:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3215 states have (on average 1.3057542768273718) internal successors, (4198), 3215 states have internal predecessors, (4198), 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) [2024-10-24 05:01:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4198 transitions. [2024-10-24 05:01:16,523 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4198 transitions. Word has length 59 [2024-10-24 05:01:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:16,523 INFO L471 AbstractCegarLoop]: Abstraction has 3216 states and 4198 transitions. [2024-10-24 05:01:16,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 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) [2024-10-24 05:01:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4198 transitions. [2024-10-24 05:01:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:16,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:16,525 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] [2024-10-24 05:01:16,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-10-24 05:01:16,526 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:16,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:16,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1261377036, now seen corresponding path program 1 times [2024-10-24 05:01:16,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:16,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808353592] [2024-10-24 05:01:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:16,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:16,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808353592] [2024-10-24 05:01:16,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808353592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:16,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 05:01:16,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057090834] [2024-10-24 05:01:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:16,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 05:01:16,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 05:01:16,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:01:16,725 INFO L87 Difference]: Start difference. First operand 3216 states and 4198 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 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) [2024-10-24 05:01:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:16,762 INFO L93 Difference]: Finished difference Result 4511 states and 6018 transitions. [2024-10-24 05:01:16,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 05:01:16,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:16,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:16,765 INFO L225 Difference]: With dead ends: 4511 [2024-10-24 05:01:16,765 INFO L226 Difference]: Without dead ends: 3216 [2024-10-24 05:01:16,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:01:16,768 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 28 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:16,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 685 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:01:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2024-10-24 05:01:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 3108. [2024-10-24 05:01:16,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 3107 states have (on average 1.2867718056002575) internal successors, (3998), 3107 states have internal predecessors, (3998), 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) [2024-10-24 05:01:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 3998 transitions. [2024-10-24 05:01:16,788 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 3998 transitions. Word has length 59 [2024-10-24 05:01:16,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:16,788 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 3998 transitions. [2024-10-24 05:01:16,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 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) [2024-10-24 05:01:16,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 3998 transitions. [2024-10-24 05:01:16,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:16,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:16,790 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] [2024-10-24 05:01:16,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-10-24 05:01:16,791 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:16,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:16,791 INFO L85 PathProgramCache]: Analyzing trace with hash -741350250, now seen corresponding path program 1 times [2024-10-24 05:01:16,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:16,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199730573] [2024-10-24 05:01:16,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:16,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:17,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:17,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199730573] [2024-10-24 05:01:17,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199730573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:17,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:17,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 05:01:17,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853448332] [2024-10-24 05:01:17,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:17,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 05:01:17,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:17,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 05:01:17,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:17,303 INFO L87 Difference]: Start difference. First operand 3108 states and 3998 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 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) [2024-10-24 05:01:17,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:17,514 INFO L93 Difference]: Finished difference Result 4674 states and 6078 transitions. [2024-10-24 05:01:17,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 05:01:17,514 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:17,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:17,517 INFO L225 Difference]: With dead ends: 4674 [2024-10-24 05:01:17,517 INFO L226 Difference]: Without dead ends: 3556 [2024-10-24 05:01:17,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:17,519 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:17,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 857 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:01:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-10-24 05:01:17,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3193. [2024-10-24 05:01:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 3192 states have (on average 1.2828947368421053) internal successors, (4095), 3192 states have internal predecessors, (4095), 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) [2024-10-24 05:01:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 4095 transitions. [2024-10-24 05:01:17,538 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 4095 transitions. Word has length 59 [2024-10-24 05:01:17,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:17,538 INFO L471 AbstractCegarLoop]: Abstraction has 3193 states and 4095 transitions. [2024-10-24 05:01:17,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 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) [2024-10-24 05:01:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 4095 transitions. [2024-10-24 05:01:17,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:17,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:17,540 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] [2024-10-24 05:01:17,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-10-24 05:01:17,541 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:17,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1694014301, now seen corresponding path program 1 times [2024-10-24 05:01:17,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:17,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192375503] [2024-10-24 05:01:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:17,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:17,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:17,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192375503] [2024-10-24 05:01:17,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192375503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:17,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:17,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:01:17,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065254345] [2024-10-24 05:01:17,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:17,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:01:17,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:17,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:01:17,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:01:17,811 INFO L87 Difference]: Start difference. First operand 3193 states and 4095 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 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) [2024-10-24 05:01:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:17,955 INFO L93 Difference]: Finished difference Result 5410 states and 7104 transitions. [2024-10-24 05:01:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:01:17,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:17,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:17,959 INFO L225 Difference]: With dead ends: 5410 [2024-10-24 05:01:17,959 INFO L226 Difference]: Without dead ends: 4312 [2024-10-24 05:01:17,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:01:17,961 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 148 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:17,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 615 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2024-10-24 05:01:17,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 3796. [2024-10-24 05:01:17,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 3795 states have (on average 1.2822134387351778) internal successors, (4866), 3795 states have internal predecessors, (4866), 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) [2024-10-24 05:01:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 4866 transitions. [2024-10-24 05:01:17,987 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 4866 transitions. Word has length 59 [2024-10-24 05:01:17,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:17,987 INFO L471 AbstractCegarLoop]: Abstraction has 3796 states and 4866 transitions. [2024-10-24 05:01:17,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 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) [2024-10-24 05:01:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 4866 transitions. [2024-10-24 05:01:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:17,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:17,989 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] [2024-10-24 05:01:17,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-10-24 05:01:17,990 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:17,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1534920637, now seen corresponding path program 1 times [2024-10-24 05:01:17,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:17,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103319792] [2024-10-24 05:01:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:17,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:18,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:18,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103319792] [2024-10-24 05:01:18,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103319792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:18,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:18,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:01:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853993616] [2024-10-24 05:01:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:18,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 05:01:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:18,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 05:01:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:01:18,349 INFO L87 Difference]: Start difference. First operand 3796 states and 4866 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 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) [2024-10-24 05:01:18,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:18,537 INFO L93 Difference]: Finished difference Result 5963 states and 7836 transitions. [2024-10-24 05:01:18,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 05:01:18,537 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:18,541 INFO L225 Difference]: With dead ends: 5963 [2024-10-24 05:01:18,541 INFO L226 Difference]: Without dead ends: 4437 [2024-10-24 05:01:18,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:01:18,543 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 161 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:18,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 784 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:01:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4437 states. [2024-10-24 05:01:18,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4437 to 3936. [2024-10-24 05:01:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3936 states, 3935 states have (on average 1.2770012706480305) internal successors, (5025), 3935 states have internal predecessors, (5025), 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) [2024-10-24 05:01:18,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3936 states to 3936 states and 5025 transitions. [2024-10-24 05:01:18,570 INFO L78 Accepts]: Start accepts. Automaton has 3936 states and 5025 transitions. Word has length 59 [2024-10-24 05:01:18,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:18,570 INFO L471 AbstractCegarLoop]: Abstraction has 3936 states and 5025 transitions. [2024-10-24 05:01:18,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 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) [2024-10-24 05:01:18,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3936 states and 5025 transitions. [2024-10-24 05:01:18,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:18,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:18,572 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] [2024-10-24 05:01:18,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-10-24 05:01:18,573 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:18,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:18,573 INFO L85 PathProgramCache]: Analyzing trace with hash 408427559, now seen corresponding path program 1 times [2024-10-24 05:01:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:18,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763288147] [2024-10-24 05:01:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:18,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:19,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:19,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763288147] [2024-10-24 05:01:19,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763288147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:19,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:19,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 05:01:19,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170420523] [2024-10-24 05:01:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:19,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 05:01:19,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:19,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 05:01:19,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:01:19,166 INFO L87 Difference]: Start difference. First operand 3936 states and 5025 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 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) [2024-10-24 05:01:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:19,492 INFO L93 Difference]: Finished difference Result 5984 states and 7837 transitions. [2024-10-24 05:01:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 05:01:19,493 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:19,496 INFO L225 Difference]: With dead ends: 5984 [2024-10-24 05:01:19,497 INFO L226 Difference]: Without dead ends: 4407 [2024-10-24 05:01:19,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-10-24 05:01:19,499 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 285 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:19,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1713 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:01:19,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2024-10-24 05:01:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 3959. [2024-10-24 05:01:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3958 states have (on average 1.2789287518948964) internal successors, (5062), 3958 states have internal predecessors, (5062), 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) [2024-10-24 05:01:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 5062 transitions. [2024-10-24 05:01:19,525 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 5062 transitions. Word has length 59 [2024-10-24 05:01:19,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:19,525 INFO L471 AbstractCegarLoop]: Abstraction has 3959 states and 5062 transitions. [2024-10-24 05:01:19,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 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) [2024-10-24 05:01:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 5062 transitions. [2024-10-24 05:01:19,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:19,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:19,528 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] [2024-10-24 05:01:19,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-10-24 05:01:19,528 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:19,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:19,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1911901539, now seen corresponding path program 1 times [2024-10-24 05:01:19,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:19,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237638953] [2024-10-24 05:01:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:19,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:20,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:20,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237638953] [2024-10-24 05:01:20,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237638953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:20,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:20,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 05:01:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760356604] [2024-10-24 05:01:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:20,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 05:01:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 05:01:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:01:20,300 INFO L87 Difference]: Start difference. First operand 3959 states and 5062 transitions. Second operand has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 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) [2024-10-24 05:01:20,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:20,659 INFO L93 Difference]: Finished difference Result 5628 states and 7383 transitions. [2024-10-24 05:01:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 05:01:20,659 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:20,662 INFO L225 Difference]: With dead ends: 5628 [2024-10-24 05:01:20,663 INFO L226 Difference]: Without dead ends: 3990 [2024-10-24 05:01:20,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:01:20,665 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 82 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:20,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1012 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2024-10-24 05:01:20,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3941. [2024-10-24 05:01:20,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3940 states have (on average 1.2799492385786801) internal successors, (5043), 3940 states have internal predecessors, (5043), 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) [2024-10-24 05:01:20,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 5043 transitions. [2024-10-24 05:01:20,689 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 5043 transitions. Word has length 59 [2024-10-24 05:01:20,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:20,690 INFO L471 AbstractCegarLoop]: Abstraction has 3941 states and 5043 transitions. [2024-10-24 05:01:20,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 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) [2024-10-24 05:01:20,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 5043 transitions. [2024-10-24 05:01:20,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:20,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:20,692 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] [2024-10-24 05:01:20,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-10-24 05:01:20,692 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:20,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2031538357, now seen corresponding path program 1 times [2024-10-24 05:01:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:20,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034129055] [2024-10-24 05:01:20,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:20,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:20,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:20,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034129055] [2024-10-24 05:01:20,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034129055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:20,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:20,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 05:01:20,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761549639] [2024-10-24 05:01:20,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:20,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 05:01:20,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:20,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 05:01:20,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:01:20,834 INFO L87 Difference]: Start difference. First operand 3941 states and 5043 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-10-24 05:01:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:20,941 INFO L93 Difference]: Finished difference Result 5553 states and 7285 transitions. [2024-10-24 05:01:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 05:01:20,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:20,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:20,944 INFO L225 Difference]: With dead ends: 5553 [2024-10-24 05:01:20,944 INFO L226 Difference]: Without dead ends: 3600 [2024-10-24 05:01:20,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 05:01:20,946 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 118 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:20,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 362 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2024-10-24 05:01:20,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3588. [2024-10-24 05:01:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 3587 states have (on average 1.2779481460830777) internal successors, (4584), 3587 states have internal predecessors, (4584), 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) [2024-10-24 05:01:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4584 transitions. [2024-10-24 05:01:20,967 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4584 transitions. Word has length 59 [2024-10-24 05:01:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:20,967 INFO L471 AbstractCegarLoop]: Abstraction has 3588 states and 4584 transitions. [2024-10-24 05:01:20,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-10-24 05:01:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4584 transitions. [2024-10-24 05:01:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:20,969 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:20,969 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] [2024-10-24 05:01:20,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-10-24 05:01:20,969 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:20,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:20,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1915358859, now seen corresponding path program 1 times [2024-10-24 05:01:20,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:20,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373889915] [2024-10-24 05:01:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:20,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:21,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:21,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373889915] [2024-10-24 05:01:21,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373889915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:21,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:21,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:01:21,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49050075] [2024-10-24 05:01:21,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:21,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:01:21,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:21,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:01:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:21,438 INFO L87 Difference]: Start difference. First operand 3588 states and 4584 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:21,565 INFO L93 Difference]: Finished difference Result 5704 states and 7469 transitions. [2024-10-24 05:01:21,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 05:01:21,565 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:21,568 INFO L225 Difference]: With dead ends: 5704 [2024-10-24 05:01:21,568 INFO L226 Difference]: Without dead ends: 4232 [2024-10-24 05:01:21,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:21,570 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 60 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:21,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 1194 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:21,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4232 states. [2024-10-24 05:01:21,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4232 to 3544. [2024-10-24 05:01:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3544 states, 3543 states have (on average 1.2850691504374823) internal successors, (4553), 3543 states have internal predecessors, (4553), 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) [2024-10-24 05:01:21,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 4553 transitions. [2024-10-24 05:01:21,590 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 4553 transitions. Word has length 59 [2024-10-24 05:01:21,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:21,590 INFO L471 AbstractCegarLoop]: Abstraction has 3544 states and 4553 transitions. [2024-10-24 05:01:21,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:21,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 4553 transitions. [2024-10-24 05:01:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:21,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:21,596 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] [2024-10-24 05:01:21,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-10-24 05:01:21,596 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:21,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:21,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1054479396, now seen corresponding path program 1 times [2024-10-24 05:01:21,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:21,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242409994] [2024-10-24 05:01:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:21,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:22,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:22,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242409994] [2024-10-24 05:01:22,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242409994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:22,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:22,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 05:01:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564907985] [2024-10-24 05:01:22,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:22,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 05:01:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:22,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 05:01:22,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:01:22,095 INFO L87 Difference]: Start difference. First operand 3544 states and 4553 transitions. Second operand has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 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) [2024-10-24 05:01:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:22,214 INFO L93 Difference]: Finished difference Result 5209 states and 6832 transitions. [2024-10-24 05:01:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 05:01:22,214 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:22,217 INFO L225 Difference]: With dead ends: 5209 [2024-10-24 05:01:22,217 INFO L226 Difference]: Without dead ends: 3746 [2024-10-24 05:01:22,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:01:22,218 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 125 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:22,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 967 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:01:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2024-10-24 05:01:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3634. [2024-10-24 05:01:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3633 states have (on average 1.283236994219653) internal successors, (4662), 3633 states have internal predecessors, (4662), 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) [2024-10-24 05:01:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 4662 transitions. [2024-10-24 05:01:22,261 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 4662 transitions. Word has length 59 [2024-10-24 05:01:22,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:22,261 INFO L471 AbstractCegarLoop]: Abstraction has 3634 states and 4662 transitions. [2024-10-24 05:01:22,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 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) [2024-10-24 05:01:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 4662 transitions. [2024-10-24 05:01:22,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:22,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:22,263 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] [2024-10-24 05:01:22,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-10-24 05:01:22,264 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:22,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:22,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1692476210, now seen corresponding path program 1 times [2024-10-24 05:01:22,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:22,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410257323] [2024-10-24 05:01:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:22,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:22,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:22,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410257323] [2024-10-24 05:01:22,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410257323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:22,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:22,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:01:22,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715290137] [2024-10-24 05:01:22,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:22,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:01:22,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:22,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:01:22,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:22,848 INFO L87 Difference]: Start difference. First operand 3634 states and 4662 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:23,024 INFO L93 Difference]: Finished difference Result 5235 states and 6867 transitions. [2024-10-24 05:01:23,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 05:01:23,024 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:23,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:23,027 INFO L225 Difference]: With dead ends: 5235 [2024-10-24 05:01:23,027 INFO L226 Difference]: Without dead ends: 3772 [2024-10-24 05:01:23,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:23,030 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 115 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:23,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1566 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:01:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2024-10-24 05:01:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3635. [2024-10-24 05:01:23,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3635 states, 3634 states have (on average 1.2831590533847002) internal successors, (4663), 3634 states have internal predecessors, (4663), 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) [2024-10-24 05:01:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 4663 transitions. [2024-10-24 05:01:23,070 INFO L78 Accepts]: Start accepts. Automaton has 3635 states and 4663 transitions. Word has length 59 [2024-10-24 05:01:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:23,070 INFO L471 AbstractCegarLoop]: Abstraction has 3635 states and 4663 transitions. [2024-10-24 05:01:23,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states and 4663 transitions. [2024-10-24 05:01:23,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:23,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:23,074 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] [2024-10-24 05:01:23,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-10-24 05:01:23,074 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:23,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:23,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1353122300, now seen corresponding path program 1 times [2024-10-24 05:01:23,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:23,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595398935] [2024-10-24 05:01:23,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:23,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:23,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:23,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595398935] [2024-10-24 05:01:23,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595398935] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:23,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:23,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:01:23,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234093279] [2024-10-24 05:01:23,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:23,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:01:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:23,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:01:23,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:23,986 INFO L87 Difference]: Start difference. First operand 3635 states and 4663 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:24,325 INFO L93 Difference]: Finished difference Result 5329 states and 6992 transitions. [2024-10-24 05:01:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:01:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:24,329 INFO L225 Difference]: With dead ends: 5329 [2024-10-24 05:01:24,329 INFO L226 Difference]: Without dead ends: 3866 [2024-10-24 05:01:24,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:01:24,331 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 93 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:24,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1572 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2024-10-24 05:01:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3664. [2024-10-24 05:01:24,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 1.2831012831012831) internal successors, (4700), 3663 states have internal predecessors, (4700), 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) [2024-10-24 05:01:24,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 4700 transitions. [2024-10-24 05:01:24,361 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 4700 transitions. Word has length 59 [2024-10-24 05:01:24,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:24,361 INFO L471 AbstractCegarLoop]: Abstraction has 3664 states and 4700 transitions. [2024-10-24 05:01:24,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 4700 transitions. [2024-10-24 05:01:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:24,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:24,363 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] [2024-10-24 05:01:24,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-10-24 05:01:24,363 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:24,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1101792466, now seen corresponding path program 1 times [2024-10-24 05:01:24,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:24,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608001480] [2024-10-24 05:01:24,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:24,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:25,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:25,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608001480] [2024-10-24 05:01:25,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608001480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:25,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:25,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-24 05:01:25,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435020068] [2024-10-24 05:01:25,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:25,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 05:01:25,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 05:01:25,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-10-24 05:01:25,135 INFO L87 Difference]: Start difference. First operand 3664 states and 4700 transitions. Second operand has 25 states, 25 states have (on average 2.36) internal successors, (59), 24 states have internal predecessors, (59), 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) [2024-10-24 05:01:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:25,420 INFO L93 Difference]: Finished difference Result 5483 states and 7190 transitions. [2024-10-24 05:01:25,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-24 05:01:25,420 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.36) internal successors, (59), 24 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:25,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:25,423 INFO L225 Difference]: With dead ends: 5483 [2024-10-24 05:01:25,424 INFO L226 Difference]: Without dead ends: 4020 [2024-10-24 05:01:25,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-10-24 05:01:25,425 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 63 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:25,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1538 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 05:01:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2024-10-24 05:01:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 3698. [2024-10-24 05:01:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3697 states have (on average 1.2829321071138762) internal successors, (4743), 3697 states have internal predecessors, (4743), 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) [2024-10-24 05:01:25,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 4743 transitions. [2024-10-24 05:01:25,449 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 4743 transitions. Word has length 59 [2024-10-24 05:01:25,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:25,449 INFO L471 AbstractCegarLoop]: Abstraction has 3698 states and 4743 transitions. [2024-10-24 05:01:25,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.36) internal successors, (59), 24 states have internal predecessors, (59), 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) [2024-10-24 05:01:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 4743 transitions. [2024-10-24 05:01:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:25,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:25,451 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] [2024-10-24 05:01:25,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-10-24 05:01:25,451 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:25,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2021967103, now seen corresponding path program 1 times [2024-10-24 05:01:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:25,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323715147] [2024-10-24 05:01:25,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:25,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:01:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 05:01:26,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:01:26,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323715147] [2024-10-24 05:01:26,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323715147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:01:26,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:01:26,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 05:01:26,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211635917] [2024-10-24 05:01:26,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:01:26,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 05:01:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:01:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 05:01:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:01:26,381 INFO L87 Difference]: Start difference. First operand 3698 states and 4743 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:27,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:01:27,025 INFO L93 Difference]: Finished difference Result 5372 states and 7053 transitions. [2024-10-24 05:01:27,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 05:01:27,025 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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 59 [2024-10-24 05:01:27,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:01:27,028 INFO L225 Difference]: With dead ends: 5372 [2024-10-24 05:01:27,028 INFO L226 Difference]: Without dead ends: 3909 [2024-10-24 05:01:27,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-10-24 05:01:27,030 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 105 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 05:01:27,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1629 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 05:01:27,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2024-10-24 05:01:27,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 3696. [2024-10-24 05:01:27,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 3695 states have (on average 1.2836265223274697) internal successors, (4743), 3695 states have internal predecessors, (4743), 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) [2024-10-24 05:01:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 4743 transitions. [2024-10-24 05:01:27,055 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 4743 transitions. Word has length 59 [2024-10-24 05:01:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:01:27,055 INFO L471 AbstractCegarLoop]: Abstraction has 3696 states and 4743 transitions. [2024-10-24 05:01:27,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 20 states have internal predecessors, (59), 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) [2024-10-24 05:01:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 4743 transitions. [2024-10-24 05:01:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 05:01:27,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:01:27,057 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] [2024-10-24 05:01:27,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-10-24 05:01:27,057 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:01:27,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:01:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1146627396, now seen corresponding path program 1 times [2024-10-24 05:01:27,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:01:27,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659905141] [2024-10-24 05:01:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:01:27,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:01:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat