/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-back-serstep.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 18:05:33,957 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 18:05:34,024 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-25 18:05:34,028 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 18:05:34,028 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 18:05:34,049 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 18:05:34,049 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 18:05:34,050 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 18:05:34,050 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 18:05:34,053 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 18:05:34,053 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 18:05:34,053 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 18:05:34,054 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 18:05:34,055 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 18:05:34,055 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 18:05:34,055 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 18:05:34,055 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 18:05:34,055 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 18:05:34,055 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 18:05:34,056 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 18:05:34,056 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 18:05:34,057 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 18:05:34,057 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 18:05:34,057 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 18:05:34,057 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 18:05:34,058 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 18:05:34,058 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 18:05:34,058 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 18:05:34,058 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 18:05:34,058 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 18:05:34,059 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 18:05:34,059 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 18:05:34,059 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 18:05:34,059 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 18:05:34,059 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 18:05:34,059 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 18:05:34,060 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 18:05:34,060 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 18:05:34,060 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 18:05:34,060 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 18:05:34,060 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 18:05:34,252 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 18:05:34,267 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 18:05:34,269 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 18:05:34,270 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 18:05:34,270 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 18:05:34,271 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-back-serstep.c
[2023-12-25 18:05:35,457 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 18:05:35,794 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 18:05:35,795 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-back-serstep.c
[2023-12-25 18:05:35,818 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fceddc85/cff352cb793e49c689d28a3ad904aa17/FLAG31bdd9698
[2023-12-25 18:05:35,831 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fceddc85/cff352cb793e49c689d28a3ad904aa17
[2023-12-25 18:05:35,833 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 18:05:35,834 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 18:05:35,836 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 18:05:35,836 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 18:05:35,840 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 18:05:35,841 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:05:35" (1/1) ...
[2023-12-25 18:05:35,842 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3552d33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:35, skipping insertion in model container
[2023-12-25 18:05:35,842 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:05:35" (1/1) ...
[2023-12-25 18:05:35,926 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 18:05:36,125 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-back-serstep.c[1178,1191]
[2023-12-25 18:05:36,822 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 18:05:36,830 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 18:05:36,837 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-back-serstep.c[1178,1191]
[2023-12-25 18:05:37,460 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 18:05:37,471 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 18:05:37,472 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37 WrapperNode
[2023-12-25 18:05:37,472 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 18:05:37,473 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 18:05:37,473 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 18:05:37,473 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 18:05:37,479 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:37,611 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:39,817 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24428
[2023-12-25 18:05:39,817 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 18:05:39,818 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 18:05:39,818 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 18:05:39,818 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 18:05:39,827 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:39,827 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:40,499 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:40,883 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].
[2023-12-25 18:05:40,883 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:40,883 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:41,767 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:41,843 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:41,935 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:42,010 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:42,321 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 18:05:42,321 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 18:05:42,321 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 18:05:42,321 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 18:05:42,327 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (1/1) ...
[2023-12-25 18:05:42,344 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 18:05:42,354 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:05:42,397 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)
[2023-12-25 18:05:42,447 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
[2023-12-25 18:05:42,465 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 18:05:42,465 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 18:05:42,465 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 18:05:42,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 18:05:43,339 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 18:05:43,341 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 18:05:52,249 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 18:05:52,843 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 18:05:52,844 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 18:05:52,844 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:05:52 BoogieIcfgContainer
[2023-12-25 18:05:52,845 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 18:05:52,847 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 18:05:52,847 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 18:05:52,849 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 18:05:52,850 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 06:05:35" (1/3) ...
[2023-12-25 18:05:52,863 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b12fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:05:52, skipping insertion in model container
[2023-12-25 18:05:52,864 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:05:37" (2/3) ...
[2023-12-25 18:05:52,864 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b12fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:05:52, skipping insertion in model container
[2023-12-25 18:05:52,864 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:05:52" (3/3) ...
[2023-12-25 18:05:52,867 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.extinction.1.prop1-back-serstep.c
[2023-12-25 18:05:52,879 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 18:05:52,879 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 18:05:53,069 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 18:05:53,074 INFO  L357      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, mHoare=true, 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;@3cc5d01d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 18:05:53,074 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 18:05:53,099 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5413 states, 5411 states have (on average 1.6686379597116985) internal successors, (9029), 5412 states have internal predecessors, (9029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:05:53,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 631
[2023-12-25 18:05:53,121 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:05:53,122 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:05:53,123 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:05:53,126 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:05:53,126 INFO  L85        PathProgramCache]: Analyzing trace with hash -996197848, now seen corresponding path program 1 times
[2023-12-25 18:05:53,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:05:53,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264886107]
[2023-12-25 18:05:53,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:05:53,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:05:53,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:05:55,867 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:05:55,868 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:05:55,868 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264886107]
[2023-12-25 18:05:55,869 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264886107] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:05:55,869 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:05:55,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:05:55,870 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193121203]
[2023-12-25 18:05:55,871 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:05:55,875 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:05:55,875 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:05:55,901 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:05:55,901 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:05:55,914 INFO  L87              Difference]: Start difference. First operand  has 5413 states, 5411 states have (on average 1.6686379597116985) internal successors, (9029), 5412 states have internal predecessors, (9029), 0 states have call successors, (0), 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 5 states, 5 states have (on average 126.0) internal successors, (630), 4 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:00,528 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:00,528 INFO  L93              Difference]: Finished difference Result 15765 states and 26303 transitions.
[2023-12-25 18:06:00,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:06:00,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 126.0) internal successors, (630), 4 states have internal predecessors, (630), 0 states have call successors, (0), 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 630
[2023-12-25 18:06:00,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:00,577 INFO  L225             Difference]: With dead ends: 15765
[2023-12-25 18:06:00,577 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:06:00,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:06:00,595 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25890 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25890 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:00,596 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25890 Valid, 21248 Invalid, 5827 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-25 18:06:00,622 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:06:00,757 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5780.
[2023-12-25 18:06:00,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5780 states, 5779 states have (on average 1.667762588683163) internal successors, (9638), 5779 states have internal predecessors, (9638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:00,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 9638 transitions.
[2023-12-25 18:06:00,788 INFO  L78                 Accepts]: Start accepts. Automaton has 5780 states and 9638 transitions. Word has length 630
[2023-12-25 18:06:00,791 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:00,792 INFO  L495      AbstractCegarLoop]: Abstraction has 5780 states and 9638 transitions.
[2023-12-25 18:06:00,792 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 126.0) internal successors, (630), 4 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:00,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 5780 states and 9638 transitions.
[2023-12-25 18:06:00,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 632
[2023-12-25 18:06:00,804 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:00,804 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:00,804 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 18:06:00,805 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:00,805 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:00,805 INFO  L85        PathProgramCache]: Analyzing trace with hash 538044662, now seen corresponding path program 1 times
[2023-12-25 18:06:00,805 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:00,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633254224]
[2023-12-25 18:06:00,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:00,806 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:01,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:02,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:02,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:02,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633254224]
[2023-12-25 18:06:02,611 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633254224] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:02,611 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:02,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:06:02,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703167083]
[2023-12-25 18:06:02,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:02,614 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:06:02,617 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:02,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:06:02,619 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:06:02,619 INFO  L87              Difference]: Start difference. First operand 5780 states and 9638 transitions. Second operand  has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:08,102 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:08,102 INFO  L93              Difference]: Finished difference Result 15939 states and 26554 transitions.
[2023-12-25 18:06:08,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:06:08,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 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 631
[2023-12-25 18:06:08,104 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:08,150 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:06:08,151 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:06:08,167 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:06:08,169 INFO  L413           NwaCegarLoop]: 7529 mSDtfsCounter, 25971 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25971 SdHoareTripleChecker+Valid, 30799 SdHoareTripleChecker+Invalid, 5914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:08,170 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25971 Valid, 30799 Invalid, 5914 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-25 18:06:08,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:06:08,315 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5785.
[2023-12-25 18:06:08,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5785 states, 5784 states have (on average 1.6675311203319503) internal successors, (9645), 5784 states have internal predecessors, (9645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:08,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 9645 transitions.
[2023-12-25 18:06:08,356 INFO  L78                 Accepts]: Start accepts. Automaton has 5785 states and 9645 transitions. Word has length 631
[2023-12-25 18:06:08,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:08,357 INFO  L495      AbstractCegarLoop]: Abstraction has 5785 states and 9645 transitions.
[2023-12-25 18:06:08,358 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:08,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 5785 states and 9645 transitions.
[2023-12-25 18:06:08,368 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 633
[2023-12-25 18:06:08,368 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:08,369 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:08,369 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 18:06:08,369 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:08,378 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:08,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -1369449122, now seen corresponding path program 1 times
[2023-12-25 18:06:08,379 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:08,379 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101436425]
[2023-12-25 18:06:08,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:08,380 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:08,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:10,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:10,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:10,157 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101436425]
[2023-12-25 18:06:10,157 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101436425] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:10,157 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:10,158 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:06:10,158 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029725964]
[2023-12-25 18:06:10,158 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:10,159 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:06:10,159 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:10,160 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:06:10,162 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:06:10,162 INFO  L87              Difference]: Start difference. First operand 5785 states and 9645 transitions. Second operand  has 5 states, 5 states have (on average 126.4) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:14,571 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:14,571 INFO  L93              Difference]: Finished difference Result 15763 states and 26290 transitions.
[2023-12-25 18:06:14,572 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:06:14,572 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 126.4) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 632
[2023-12-25 18:06:14,573 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:14,606 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:06:14,606 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:06:14,619 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:06:14,621 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25880 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25880 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:14,623 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25880 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2023-12-25 18:06:14,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:06:14,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5786.
[2023-12-25 18:06:14,758 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5786 states, 5785 states have (on average 1.6674157303370787) internal successors, (9646), 5785 states have internal predecessors, (9646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:14,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5786 states to 5786 states and 9646 transitions.
[2023-12-25 18:06:14,772 INFO  L78                 Accepts]: Start accepts. Automaton has 5786 states and 9646 transitions. Word has length 632
[2023-12-25 18:06:14,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:14,774 INFO  L495      AbstractCegarLoop]: Abstraction has 5786 states and 9646 transitions.
[2023-12-25 18:06:14,774 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 126.4) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:14,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 5786 states and 9646 transitions.
[2023-12-25 18:06:14,787 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 633
[2023-12-25 18:06:14,787 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:14,791 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:14,791 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 18:06:14,791 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:14,792 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:14,792 INFO  L85        PathProgramCache]: Analyzing trace with hash -282489572, now seen corresponding path program 1 times
[2023-12-25 18:06:14,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:14,792 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158469560]
[2023-12-25 18:06:14,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:14,793 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:15,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:15,884 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:15,885 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:15,885 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158469560]
[2023-12-25 18:06:15,885 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158469560] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:15,885 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:15,885 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:06:15,885 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898833306]
[2023-12-25 18:06:15,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:15,886 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:06:15,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:15,887 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:06:15,888 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:06:15,888 INFO  L87              Difference]: Start difference. First operand 5786 states and 9646 transitions. Second operand  has 6 states, 6 states have (on average 105.33333333333333) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:20,180 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:20,180 INFO  L93              Difference]: Finished difference Result 15939 states and 26552 transitions.
[2023-12-25 18:06:20,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:06:20,181 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 105.33333333333333) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 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 632
[2023-12-25 18:06:20,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:20,212 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:06:20,213 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:06:20,231 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:06:20,236 INFO  L413           NwaCegarLoop]: 7531 mSDtfsCounter, 25962 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5824 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25962 SdHoareTripleChecker+Valid, 30801 SdHoareTripleChecker+Invalid, 5912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:20,237 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25962 Valid, 30801 Invalid, 5912 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5824 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-25 18:06:20,265 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:06:20,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5791.
[2023-12-25 18:06:20,447 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5791 states, 5790 states have (on average 1.6671848013816926) internal successors, (9653), 5790 states have internal predecessors, (9653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:20,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5791 states to 5791 states and 9653 transitions.
[2023-12-25 18:06:20,454 INFO  L78                 Accepts]: Start accepts. Automaton has 5791 states and 9653 transitions. Word has length 632
[2023-12-25 18:06:20,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:20,454 INFO  L495      AbstractCegarLoop]: Abstraction has 5791 states and 9653 transitions.
[2023-12-25 18:06:20,454 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 105.33333333333333) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:20,454 INFO  L276                IsEmpty]: Start isEmpty. Operand 5791 states and 9653 transitions.
[2023-12-25 18:06:20,458 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 634
[2023-12-25 18:06:20,458 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:20,458 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:20,458 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 18:06:20,458 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:20,459 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:20,459 INFO  L85        PathProgramCache]: Analyzing trace with hash 336355884, now seen corresponding path program 1 times
[2023-12-25 18:06:20,459 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:20,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473923063]
[2023-12-25 18:06:20,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:20,459 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:20,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:21,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:21,883 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:21,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473923063]
[2023-12-25 18:06:21,883 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473923063] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:21,883 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:21,883 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:06:21,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615541791]
[2023-12-25 18:06:21,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:21,885 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:06:21,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:21,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:06:21,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:06:21,887 INFO  L87              Difference]: Start difference. First operand 5791 states and 9653 transitions. Second operand  has 5 states, 5 states have (on average 126.6) internal successors, (633), 4 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:26,797 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:26,797 INFO  L93              Difference]: Finished difference Result 15763 states and 26288 transitions.
[2023-12-25 18:06:26,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:06:26,798 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 126.6) internal successors, (633), 4 states have internal predecessors, (633), 0 states have call successors, (0), 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 633
[2023-12-25 18:06:26,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:26,813 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:06:26,813 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:06:26,821 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:06:26,822 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25871 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25871 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:26,822 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25871 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-25 18:06:26,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:06:26,891 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5792.
[2023-12-25 18:06:26,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5792 states, 5791 states have (on average 1.6670695907442583) internal successors, (9654), 5791 states have internal predecessors, (9654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:26,904 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5792 states to 5792 states and 9654 transitions.
[2023-12-25 18:06:26,904 INFO  L78                 Accepts]: Start accepts. Automaton has 5792 states and 9654 transitions. Word has length 633
[2023-12-25 18:06:26,904 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:26,905 INFO  L495      AbstractCegarLoop]: Abstraction has 5792 states and 9654 transitions.
[2023-12-25 18:06:26,905 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 126.6) internal successors, (633), 4 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:26,905 INFO  L276                IsEmpty]: Start isEmpty. Operand 5792 states and 9654 transitions.
[2023-12-25 18:06:26,908 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 634
[2023-12-25 18:06:26,908 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:26,909 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:26,909 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-25 18:06:26,909 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:26,909 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:26,909 INFO  L85        PathProgramCache]: Analyzing trace with hash -1439719190, now seen corresponding path program 1 times
[2023-12-25 18:06:26,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:26,910 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417845505]
[2023-12-25 18:06:26,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:26,910 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:27,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:27,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:27,861 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:27,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417845505]
[2023-12-25 18:06:27,862 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417845505] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:27,862 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:27,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:06:27,862 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909978636]
[2023-12-25 18:06:27,862 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:27,863 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:06:27,863 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:27,863 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:06:27,863 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:06:27,864 INFO  L87              Difference]: Start difference. First operand 5792 states and 9654 transitions. Second operand  has 6 states, 6 states have (on average 105.5) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:30,813 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:30,813 INFO  L93              Difference]: Finished difference Result 15939 states and 26550 transitions.
[2023-12-25 18:06:30,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:06:30,814 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 105.5) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 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 633
[2023-12-25 18:06:30,815 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:30,831 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:06:30,831 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:06:30,841 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:06:30,841 INFO  L413           NwaCegarLoop]: 7533 mSDtfsCounter, 34218 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34218 SdHoareTripleChecker+Valid, 23979 SdHoareTripleChecker+Invalid, 4057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:30,841 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34218 Valid, 23979 Invalid, 4057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-25 18:06:30,851 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:06:30,923 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5797.
[2023-12-25 18:06:30,931 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5797 states, 5796 states have (on average 1.666839199447895) internal successors, (9661), 5796 states have internal predecessors, (9661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:30,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5797 states to 5797 states and 9661 transitions.
[2023-12-25 18:06:30,938 INFO  L78                 Accepts]: Start accepts. Automaton has 5797 states and 9661 transitions. Word has length 633
[2023-12-25 18:06:30,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:30,939 INFO  L495      AbstractCegarLoop]: Abstraction has 5797 states and 9661 transitions.
[2023-12-25 18:06:30,939 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 105.5) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:30,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 5797 states and 9661 transitions.
[2023-12-25 18:06:30,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 635
[2023-12-25 18:06:30,943 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:30,943 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:30,944 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-25 18:06:30,944 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:30,944 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:30,944 INFO  L85        PathProgramCache]: Analyzing trace with hash -1059412398, now seen corresponding path program 1 times
[2023-12-25 18:06:30,944 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:30,944 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056067738]
[2023-12-25 18:06:30,944 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:30,945 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:31,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:31,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:31,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:31,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056067738]
[2023-12-25 18:06:31,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056067738] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:31,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:31,986 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:06:31,986 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565189913]
[2023-12-25 18:06:31,986 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:31,986 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:06:31,986 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:31,987 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:06:31,987 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:06:31,987 INFO  L87              Difference]: Start difference. First operand 5797 states and 9661 transitions. Second operand  has 5 states, 5 states have (on average 126.8) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:35,887 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:35,893 INFO  L93              Difference]: Finished difference Result 15763 states and 26286 transitions.
[2023-12-25 18:06:35,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:06:35,894 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 126.8) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 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 634
[2023-12-25 18:06:35,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:35,909 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:06:35,909 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:06:35,919 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:06:35,920 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25862 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25862 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:35,920 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25862 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2023-12-25 18:06:35,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:06:36,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5798.
[2023-12-25 18:06:36,014 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5798 states, 5797 states have (on average 1.6667241676729343) internal successors, (9662), 5797 states have internal predecessors, (9662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:36,020 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 9662 transitions.
[2023-12-25 18:06:36,021 INFO  L78                 Accepts]: Start accepts. Automaton has 5798 states and 9662 transitions. Word has length 634
[2023-12-25 18:06:36,021 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:36,021 INFO  L495      AbstractCegarLoop]: Abstraction has 5798 states and 9662 transitions.
[2023-12-25 18:06:36,022 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 126.8) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:36,022 INFO  L276                IsEmpty]: Start isEmpty. Operand 5798 states and 9662 transitions.
[2023-12-25 18:06:36,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 635
[2023-12-25 18:06:36,025 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:36,025 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:36,026 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-25 18:06:36,026 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:36,026 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:36,026 INFO  L85        PathProgramCache]: Analyzing trace with hash -1116277744, now seen corresponding path program 1 times
[2023-12-25 18:06:36,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:36,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420832489]
[2023-12-25 18:06:36,026 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:36,026 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:36,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:36,914 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:36,915 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:36,915 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420832489]
[2023-12-25 18:06:36,915 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420832489] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:36,915 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:36,915 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:06:36,915 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633886162]
[2023-12-25 18:06:36,915 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:36,916 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:06:36,916 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:36,917 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:06:36,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:06:36,917 INFO  L87              Difference]: Start difference. First operand 5798 states and 9662 transitions. Second operand  has 6 states, 6 states have (on average 105.66666666666667) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:39,301 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:39,301 INFO  L93              Difference]: Finished difference Result 15939 states and 26548 transitions.
[2023-12-25 18:06:39,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:06:39,301 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 105.66666666666667) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 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 634
[2023-12-25 18:06:39,302 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:39,316 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:06:39,316 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:06:39,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:06:39,326 INFO  L413           NwaCegarLoop]: 7535 mSDtfsCounter, 34202 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3967 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34202 SdHoareTripleChecker+Valid, 23981 SdHoareTripleChecker+Invalid, 4055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:39,326 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34202 Valid, 23981 Invalid, 4055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3967 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-12-25 18:06:39,335 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:06:39,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5803.
[2023-12-25 18:06:39,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5803 states, 5802 states have (on average 1.6664943123061013) internal successors, (9669), 5802 states have internal predecessors, (9669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:39,424 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 9669 transitions.
[2023-12-25 18:06:39,424 INFO  L78                 Accepts]: Start accepts. Automaton has 5803 states and 9669 transitions. Word has length 634
[2023-12-25 18:06:39,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:39,425 INFO  L495      AbstractCegarLoop]: Abstraction has 5803 states and 9669 transitions.
[2023-12-25 18:06:39,425 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 105.66666666666667) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:39,425 INFO  L276                IsEmpty]: Start isEmpty. Operand 5803 states and 9669 transitions.
[2023-12-25 18:06:39,428 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 636
[2023-12-25 18:06:39,428 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:39,429 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:39,429 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-25 18:06:39,429 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:39,430 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:39,430 INFO  L85        PathProgramCache]: Analyzing trace with hash -251736032, now seen corresponding path program 1 times
[2023-12-25 18:06:39,430 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:39,430 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214955146]
[2023-12-25 18:06:39,430 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:39,430 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:39,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:40,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:40,451 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:40,451 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214955146]
[2023-12-25 18:06:40,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214955146] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:40,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:40,452 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:06:40,452 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374181447]
[2023-12-25 18:06:40,452 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:40,453 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:06:40,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:40,453 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:06:40,453 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:06:40,454 INFO  L87              Difference]: Start difference. First operand 5803 states and 9669 transitions. Second operand  has 5 states, 5 states have (on average 127.0) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:44,227 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:44,228 INFO  L93              Difference]: Finished difference Result 15763 states and 26284 transitions.
[2023-12-25 18:06:44,228 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:06:44,228 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 127.0) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 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 635
[2023-12-25 18:06:44,229 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:44,243 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:06:44,244 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:06:44,252 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:06:44,254 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25853 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25853 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:44,254 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25853 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-25 18:06:44,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:06:44,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5804.
[2023-12-25 18:06:44,338 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5804 states, 5803 states have (on average 1.6663794589005687) internal successors, (9670), 5803 states have internal predecessors, (9670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:44,344 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 9670 transitions.
[2023-12-25 18:06:44,345 INFO  L78                 Accepts]: Start accepts. Automaton has 5804 states and 9670 transitions. Word has length 635
[2023-12-25 18:06:44,345 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:44,345 INFO  L495      AbstractCegarLoop]: Abstraction has 5804 states and 9670 transitions.
[2023-12-25 18:06:44,346 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 127.0) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:44,346 INFO  L276                IsEmpty]: Start isEmpty. Operand 5804 states and 9670 transitions.
[2023-12-25 18:06:44,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 636
[2023-12-25 18:06:44,349 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:44,349 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:44,350 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-25 18:06:44,350 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:44,350 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:44,350 INFO  L85        PathProgramCache]: Analyzing trace with hash -520901410, now seen corresponding path program 1 times
[2023-12-25 18:06:44,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:44,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187811941]
[2023-12-25 18:06:44,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:44,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:44,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:45,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:45,060 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:45,060 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187811941]
[2023-12-25 18:06:45,060 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187811941] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:45,060 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:45,060 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:06:45,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616330236]
[2023-12-25 18:06:45,061 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:45,061 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:06:45,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:45,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:06:45,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:06:45,062 INFO  L87              Difference]: Start difference. First operand 5804 states and 9670 transitions. Second operand  has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:47,352 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:47,352 INFO  L93              Difference]: Finished difference Result 15939 states and 26546 transitions.
[2023-12-25 18:06:47,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:06:47,353 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 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 635
[2023-12-25 18:06:47,353 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:47,364 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:06:47,365 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:06:47,373 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:06:47,373 INFO  L413           NwaCegarLoop]: 7537 mSDtfsCounter, 34186 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34186 SdHoareTripleChecker+Valid, 23983 SdHoareTripleChecker+Invalid, 4053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:47,373 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34186 Valid, 23983 Invalid, 4053 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-25 18:06:47,383 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:06:47,454 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5809.
[2023-12-25 18:06:47,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5809 states, 5808 states have (on average 1.6661501377410468) internal successors, (9677), 5808 states have internal predecessors, (9677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:47,467 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5809 states to 5809 states and 9677 transitions.
[2023-12-25 18:06:47,467 INFO  L78                 Accepts]: Start accepts. Automaton has 5809 states and 9677 transitions. Word has length 635
[2023-12-25 18:06:47,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:47,468 INFO  L495      AbstractCegarLoop]: Abstraction has 5809 states and 9677 transitions.
[2023-12-25 18:06:47,468 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:47,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 5809 states and 9677 transitions.
[2023-12-25 18:06:47,473 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 637
[2023-12-25 18:06:47,473 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:47,474 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:47,474 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-25 18:06:47,474 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:47,474 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:47,474 INFO  L85        PathProgramCache]: Analyzing trace with hash 666272582, now seen corresponding path program 1 times
[2023-12-25 18:06:47,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:47,475 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026186373]
[2023-12-25 18:06:47,475 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:47,475 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:47,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:48,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:48,573 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:48,573 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026186373]
[2023-12-25 18:06:48,573 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026186373] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:48,573 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:48,573 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:06:48,573 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247870716]
[2023-12-25 18:06:48,573 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:48,574 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:06:48,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:48,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:06:48,575 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:06:48,575 INFO  L87              Difference]: Start difference. First operand 5809 states and 9677 transitions. Second operand  has 5 states, 5 states have (on average 127.2) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:52,760 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:52,760 INFO  L93              Difference]: Finished difference Result 15763 states and 26282 transitions.
[2023-12-25 18:06:52,761 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:06:52,761 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 127.2) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 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 636
[2023-12-25 18:06:52,762 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:52,771 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:06:52,771 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:06:52,777 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:06:52,777 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25844 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25844 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:52,777 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25844 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-25 18:06:52,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:06:52,837 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5810.
[2023-12-25 18:06:52,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5810 states, 5809 states have (on average 1.6660354622138063) internal successors, (9678), 5809 states have internal predecessors, (9678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:52,847 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 9678 transitions.
[2023-12-25 18:06:52,847 INFO  L78                 Accepts]: Start accepts. Automaton has 5810 states and 9678 transitions. Word has length 636
[2023-12-25 18:06:52,848 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:52,848 INFO  L495      AbstractCegarLoop]: Abstraction has 5810 states and 9678 transitions.
[2023-12-25 18:06:52,848 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 127.2) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:52,848 INFO  L276                IsEmpty]: Start isEmpty. Operand 5810 states and 9678 transitions.
[2023-12-25 18:06:52,851 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 637
[2023-12-25 18:06:52,852 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:52,852 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:52,852 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-25 18:06:52,852 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:52,852 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:52,852 INFO  L85        PathProgramCache]: Analyzing trace with hash -207393020, now seen corresponding path program 1 times
[2023-12-25 18:06:52,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:52,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867749220]
[2023-12-25 18:06:52,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:52,853 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:53,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:53,560 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:53,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:53,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867749220]
[2023-12-25 18:06:53,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867749220] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:53,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:53,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:06:53,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715205936]
[2023-12-25 18:06:53,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:53,561 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:06:53,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:53,561 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:06:53,562 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:06:53,562 INFO  L87              Difference]: Start difference. First operand 5810 states and 9678 transitions. Second operand  has 6 states, 6 states have (on average 106.0) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:57,780 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:06:57,780 INFO  L93              Difference]: Finished difference Result 15939 states and 26544 transitions.
[2023-12-25 18:06:57,780 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:06:57,780 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 106.0) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 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 636
[2023-12-25 18:06:57,781 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:06:57,792 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:06:57,792 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:06:57,801 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:06:57,801 INFO  L413           NwaCegarLoop]: 7539 mSDtfsCounter, 25926 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5816 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25926 SdHoareTripleChecker+Valid, 30809 SdHoareTripleChecker+Invalid, 5904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:06:57,802 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25926 Valid, 30809 Invalid, 5904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5816 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-25 18:06:57,810 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:06:57,874 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5815.
[2023-12-25 18:06:57,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5815 states, 5814 states have (on average 1.6658066735466117) internal successors, (9685), 5814 states have internal predecessors, (9685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:57,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 9685 transitions.
[2023-12-25 18:06:57,886 INFO  L78                 Accepts]: Start accepts. Automaton has 5815 states and 9685 transitions. Word has length 636
[2023-12-25 18:06:57,886 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:06:57,886 INFO  L495      AbstractCegarLoop]: Abstraction has 5815 states and 9685 transitions.
[2023-12-25 18:06:57,887 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 106.0) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:06:57,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 5815 states and 9685 transitions.
[2023-12-25 18:06:57,890 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 638
[2023-12-25 18:06:57,890 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:06:57,891 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:06:57,891 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-25 18:06:57,891 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:06:57,891 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:06:57,891 INFO  L85        PathProgramCache]: Analyzing trace with hash 15045140, now seen corresponding path program 1 times
[2023-12-25 18:06:57,891 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:06:57,891 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967979528]
[2023-12-25 18:06:57,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:06:57,891 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:06:58,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:06:58,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:06:58,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:06:58,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967979528]
[2023-12-25 18:06:58,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967979528] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:06:58,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:06:58,889 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:06:58,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104817073]
[2023-12-25 18:06:58,890 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:06:58,890 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:06:58,890 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:06:58,891 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:06:58,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:06:58,891 INFO  L87              Difference]: Start difference. First operand 5815 states and 9685 transitions. Second operand  has 5 states, 5 states have (on average 127.4) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:03,061 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:03,061 INFO  L93              Difference]: Finished difference Result 15763 states and 26280 transitions.
[2023-12-25 18:07:03,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:03,061 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 127.4) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 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 637
[2023-12-25 18:07:03,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:03,072 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:03,072 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:03,082 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:03,083 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25835 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25835 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:03,083 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25835 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2023-12-25 18:07:03,094 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:03,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5816.
[2023-12-25 18:07:03,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5816 states, 5815 states have (on average 1.6656921754084264) internal successors, (9686), 5815 states have internal predecessors, (9686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:03,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 9686 transitions.
[2023-12-25 18:07:03,195 INFO  L78                 Accepts]: Start accepts. Automaton has 5816 states and 9686 transitions. Word has length 637
[2023-12-25 18:07:03,195 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:03,195 INFO  L495      AbstractCegarLoop]: Abstraction has 5816 states and 9686 transitions.
[2023-12-25 18:07:03,195 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 127.4) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:03,196 INFO  L276                IsEmpty]: Start isEmpty. Operand 5816 states and 9686 transitions.
[2023-12-25 18:07:03,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 638
[2023-12-25 18:07:03,199 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:03,199 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:03,199 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-25 18:07:03,200 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:03,200 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:03,200 INFO  L85        PathProgramCache]: Analyzing trace with hash -852882222, now seen corresponding path program 1 times
[2023-12-25 18:07:03,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:03,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955817515]
[2023-12-25 18:07:03,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:03,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:03,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:03,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:03,913 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:03,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955817515]
[2023-12-25 18:07:03,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955817515] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:03,914 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:03,914 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:03,914 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457750295]
[2023-12-25 18:07:03,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:03,916 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:03,916 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:03,916 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:03,916 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:03,916 INFO  L87              Difference]: Start difference. First operand 5816 states and 9686 transitions. Second operand  has 6 states, 6 states have (on average 106.16666666666667) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:06,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:06,812 INFO  L93              Difference]: Finished difference Result 15939 states and 26542 transitions.
[2023-12-25 18:07:06,812 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:06,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 106.16666666666667) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 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 637
[2023-12-25 18:07:06,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:06,825 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:06,825 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:06,832 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:06,833 INFO  L413           NwaCegarLoop]: 7541 mSDtfsCounter, 34154 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34154 SdHoareTripleChecker+Valid, 23987 SdHoareTripleChecker+Invalid, 4049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:06,833 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34154 Valid, 23987 Invalid, 4049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-25 18:07:06,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:06,905 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5821.
[2023-12-25 18:07:06,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5821 states, 5820 states have (on average 1.6654639175257733) internal successors, (9693), 5820 states have internal predecessors, (9693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:06,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5821 states to 5821 states and 9693 transitions.
[2023-12-25 18:07:06,917 INFO  L78                 Accepts]: Start accepts. Automaton has 5821 states and 9693 transitions. Word has length 637
[2023-12-25 18:07:06,918 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:06,918 INFO  L495      AbstractCegarLoop]: Abstraction has 5821 states and 9693 transitions.
[2023-12-25 18:07:06,918 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 106.16666666666667) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:06,918 INFO  L276                IsEmpty]: Start isEmpty. Operand 5821 states and 9693 transitions.
[2023-12-25 18:07:06,921 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 639
[2023-12-25 18:07:06,921 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:06,922 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:06,922 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-12-25 18:07:06,922 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:06,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:06,922 INFO  L85        PathProgramCache]: Analyzing trace with hash -753961926, now seen corresponding path program 1 times
[2023-12-25 18:07:06,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:06,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742998806]
[2023-12-25 18:07:06,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:06,923 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:07,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:07,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:07,865 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:07,865 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742998806]
[2023-12-25 18:07:07,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742998806] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:07,865 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:07,865 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:07:07,865 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141747236]
[2023-12-25 18:07:07,865 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:07,866 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:07:07,866 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:07,867 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:07:07,867 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:07:07,867 INFO  L87              Difference]: Start difference. First operand 5821 states and 9693 transitions. Second operand  has 5 states, 5 states have (on average 127.6) internal successors, (638), 4 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:11,490 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:11,491 INFO  L93              Difference]: Finished difference Result 15763 states and 26278 transitions.
[2023-12-25 18:07:11,491 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:11,491 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 127.6) internal successors, (638), 4 states have internal predecessors, (638), 0 states have call successors, (0), 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 638
[2023-12-25 18:07:11,492 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:11,503 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:11,503 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:11,509 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:11,510 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25826 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25826 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:11,510 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25826 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-25 18:07:11,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:11,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5822.
[2023-12-25 18:07:11,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5822 states, 5821 states have (on average 1.6653495962892975) internal successors, (9694), 5821 states have internal predecessors, (9694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:11,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 9694 transitions.
[2023-12-25 18:07:11,607 INFO  L78                 Accepts]: Start accepts. Automaton has 5822 states and 9694 transitions. Word has length 638
[2023-12-25 18:07:11,607 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:11,608 INFO  L495      AbstractCegarLoop]: Abstraction has 5822 states and 9694 transitions.
[2023-12-25 18:07:11,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 127.6) internal successors, (638), 4 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:11,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 5822 states and 9694 transitions.
[2023-12-25 18:07:11,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 639
[2023-12-25 18:07:11,612 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:11,612 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:11,613 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-12-25 18:07:11,613 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:11,613 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:11,613 INFO  L85        PathProgramCache]: Analyzing trace with hash -540344840, now seen corresponding path program 1 times
[2023-12-25 18:07:11,613 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:11,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18279041]
[2023-12-25 18:07:11,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:11,614 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:11,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:12,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:12,593 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:12,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18279041]
[2023-12-25 18:07:12,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18279041] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:12,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:12,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:12,593 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300898050]
[2023-12-25 18:07:12,593 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:12,594 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:12,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:12,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:12,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:12,594 INFO  L87              Difference]: Start difference. First operand 5822 states and 9694 transitions. Second operand  has 6 states, 6 states have (on average 106.33333333333333) internal successors, (638), 5 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:15,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:15,048 INFO  L93              Difference]: Finished difference Result 15939 states and 26540 transitions.
[2023-12-25 18:07:15,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:15,049 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 106.33333333333333) internal successors, (638), 5 states have internal predecessors, (638), 0 states have call successors, (0), 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 638
[2023-12-25 18:07:15,050 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:15,061 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:15,061 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:15,069 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:15,070 INFO  L413           NwaCegarLoop]: 7543 mSDtfsCounter, 34138 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34138 SdHoareTripleChecker+Valid, 23989 SdHoareTripleChecker+Invalid, 4047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:15,073 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34138 Valid, 23989 Invalid, 4047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-12-25 18:07:15,081 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:15,140 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5827.
[2023-12-25 18:07:15,145 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5827 states, 5826 states have (on average 1.6651218674905595) internal successors, (9701), 5826 states have internal predecessors, (9701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:15,151 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5827 states to 5827 states and 9701 transitions.
[2023-12-25 18:07:15,151 INFO  L78                 Accepts]: Start accepts. Automaton has 5827 states and 9701 transitions. Word has length 638
[2023-12-25 18:07:15,152 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:15,152 INFO  L495      AbstractCegarLoop]: Abstraction has 5827 states and 9701 transitions.
[2023-12-25 18:07:15,152 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 106.33333333333333) internal successors, (638), 5 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:15,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 5827 states and 9701 transitions.
[2023-12-25 18:07:15,163 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 640
[2023-12-25 18:07:15,163 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:15,176 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:15,177 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-12-25 18:07:15,177 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:15,177 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:15,177 INFO  L85        PathProgramCache]: Analyzing trace with hash -1936939000, now seen corresponding path program 1 times
[2023-12-25 18:07:15,177 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:15,177 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795317995]
[2023-12-25 18:07:15,177 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:15,178 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:15,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:16,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:16,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:16,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795317995]
[2023-12-25 18:07:16,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795317995] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:16,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:16,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:07:16,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749867859]
[2023-12-25 18:07:16,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:16,236 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:07:16,236 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:16,237 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:07:16,237 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:07:16,237 INFO  L87              Difference]: Start difference. First operand 5827 states and 9701 transitions. Second operand  has 5 states, 5 states have (on average 127.8) internal successors, (639), 4 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:20,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:20,027 INFO  L93              Difference]: Finished difference Result 15763 states and 26276 transitions.
[2023-12-25 18:07:20,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:20,028 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 127.8) internal successors, (639), 4 states have internal predecessors, (639), 0 states have call successors, (0), 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 639
[2023-12-25 18:07:20,028 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:20,040 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:20,040 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:20,046 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:20,047 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25817 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25817 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:20,048 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25817 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-25 18:07:20,110 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:20,152 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5828.
[2023-12-25 18:07:20,157 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5828 states, 5827 states have (on average 1.6650077226703277) internal successors, (9702), 5827 states have internal predecessors, (9702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:20,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 9702 transitions.
[2023-12-25 18:07:20,163 INFO  L78                 Accepts]: Start accepts. Automaton has 5828 states and 9702 transitions. Word has length 639
[2023-12-25 18:07:20,163 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:20,163 INFO  L495      AbstractCegarLoop]: Abstraction has 5828 states and 9702 transitions.
[2023-12-25 18:07:20,163 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 127.8) internal successors, (639), 4 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:20,163 INFO  L276                IsEmpty]: Start isEmpty. Operand 5828 states and 9702 transitions.
[2023-12-25 18:07:20,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 640
[2023-12-25 18:07:20,167 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:20,167 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:20,167 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-12-25 18:07:20,167 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:20,168 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:20,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 362725574, now seen corresponding path program 1 times
[2023-12-25 18:07:20,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:20,169 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770688129]
[2023-12-25 18:07:20,169 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:20,169 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:20,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:20,852 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:20,852 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:20,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770688129]
[2023-12-25 18:07:20,852 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770688129] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:20,852 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:20,852 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:20,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842037859]
[2023-12-25 18:07:20,852 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:20,853 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:20,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:20,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:20,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:20,854 INFO  L87              Difference]: Start difference. First operand 5828 states and 9702 transitions. Second operand  has 6 states, 6 states have (on average 106.5) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:25,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:25,409 INFO  L93              Difference]: Finished difference Result 15939 states and 26538 transitions.
[2023-12-25 18:07:25,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:25,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 106.5) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 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 639
[2023-12-25 18:07:25,410 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:25,423 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:25,423 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:25,430 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:25,430 INFO  L413           NwaCegarLoop]: 7545 mSDtfsCounter, 25899 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5810 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25899 SdHoareTripleChecker+Valid, 30815 SdHoareTripleChecker+Invalid, 5898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:25,430 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25899 Valid, 30815 Invalid, 5898 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5810 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-12-25 18:07:25,438 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:25,521 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5833.
[2023-12-25 18:07:25,526 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5833 states, 5832 states have (on average 1.6647805212620028) internal successors, (9709), 5832 states have internal predecessors, (9709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:25,545 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 9709 transitions.
[2023-12-25 18:07:25,545 INFO  L78                 Accepts]: Start accepts. Automaton has 5833 states and 9709 transitions. Word has length 639
[2023-12-25 18:07:25,545 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:25,545 INFO  L495      AbstractCegarLoop]: Abstraction has 5833 states and 9709 transitions.
[2023-12-25 18:07:25,546 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 106.5) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:25,546 INFO  L276                IsEmpty]: Start isEmpty. Operand 5833 states and 9709 transitions.
[2023-12-25 18:07:25,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 641
[2023-12-25 18:07:25,549 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:25,549 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:25,549 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-12-25 18:07:25,551 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:25,551 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:25,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -1123976914, now seen corresponding path program 1 times
[2023-12-25 18:07:25,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:25,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3514808]
[2023-12-25 18:07:25,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:25,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:25,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:26,502 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:26,502 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:26,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3514808]
[2023-12-25 18:07:26,502 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3514808] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:26,502 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:26,502 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:07:26,502 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480208385]
[2023-12-25 18:07:26,502 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:26,503 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:07:26,503 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:26,504 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:07:26,504 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:07:26,504 INFO  L87              Difference]: Start difference. First operand 5833 states and 9709 transitions. Second operand  has 5 states, 5 states have (on average 128.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:29,979 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:29,979 INFO  L93              Difference]: Finished difference Result 15763 states and 26274 transitions.
[2023-12-25 18:07:29,979 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:29,979 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 128.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 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 640
[2023-12-25 18:07:29,980 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:29,992 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:29,992 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:30,000 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:30,001 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25808 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25808 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:30,001 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25808 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2023-12-25 18:07:30,012 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:30,071 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5834.
[2023-12-25 18:07:30,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5834 states, 5833 states have (on average 1.6646665523744213) internal successors, (9710), 5833 states have internal predecessors, (9710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:30,084 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 9710 transitions.
[2023-12-25 18:07:30,084 INFO  L78                 Accepts]: Start accepts. Automaton has 5834 states and 9710 transitions. Word has length 640
[2023-12-25 18:07:30,084 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:30,084 INFO  L495      AbstractCegarLoop]: Abstraction has 5834 states and 9710 transitions.
[2023-12-25 18:07:30,085 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 128.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:30,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 5834 states and 9710 transitions.
[2023-12-25 18:07:30,088 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 641
[2023-12-25 18:07:30,088 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:30,088 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:30,088 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-12-25 18:07:30,088 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:30,089 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:30,089 INFO  L85        PathProgramCache]: Analyzing trace with hash -636903188, now seen corresponding path program 1 times
[2023-12-25 18:07:30,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:30,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725076100]
[2023-12-25 18:07:30,089 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:30,089 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:30,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:30,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:30,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:30,830 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725076100]
[2023-12-25 18:07:30,830 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725076100] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:30,830 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:30,830 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:30,830 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232797970]
[2023-12-25 18:07:30,830 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:30,831 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:30,831 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:30,831 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:30,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:30,839 INFO  L87              Difference]: Start difference. First operand 5834 states and 9710 transitions. Second operand  has 6 states, 6 states have (on average 106.66666666666667) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:34,933 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:34,933 INFO  L93              Difference]: Finished difference Result 15939 states and 26536 transitions.
[2023-12-25 18:07:34,933 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:34,934 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 106.66666666666667) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 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 640
[2023-12-25 18:07:34,934 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:34,945 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:34,945 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:34,952 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:34,952 INFO  L413           NwaCegarLoop]: 7547 mSDtfsCounter, 25890 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5808 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25890 SdHoareTripleChecker+Valid, 30817 SdHoareTripleChecker+Invalid, 5896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:34,953 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25890 Valid, 30817 Invalid, 5896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5808 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-25 18:07:34,959 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:35,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5839.
[2023-12-25 18:07:35,011 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5839 states, 5838 states have (on average 1.6644398766700925) internal successors, (9717), 5838 states have internal predecessors, (9717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:35,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 9717 transitions.
[2023-12-25 18:07:35,018 INFO  L78                 Accepts]: Start accepts. Automaton has 5839 states and 9717 transitions. Word has length 640
[2023-12-25 18:07:35,018 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:35,018 INFO  L495      AbstractCegarLoop]: Abstraction has 5839 states and 9717 transitions.
[2023-12-25 18:07:35,019 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 106.66666666666667) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:35,019 INFO  L276                IsEmpty]: Start isEmpty. Operand 5839 states and 9717 transitions.
[2023-12-25 18:07:35,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 642
[2023-12-25 18:07:35,022 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:35,023 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:35,023 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-12-25 18:07:35,023 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:35,023 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:35,023 INFO  L85        PathProgramCache]: Analyzing trace with hash -88075780, now seen corresponding path program 1 times
[2023-12-25 18:07:35,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:35,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331123367]
[2023-12-25 18:07:35,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:35,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:35,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:35,964 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:35,964 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:35,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331123367]
[2023-12-25 18:07:35,965 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331123367] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:35,965 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:35,965 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:07:35,965 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516034065]
[2023-12-25 18:07:35,966 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:35,966 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:07:35,967 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:35,967 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:07:35,968 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:07:35,968 INFO  L87              Difference]: Start difference. First operand 5839 states and 9717 transitions. Second operand  has 5 states, 5 states have (on average 128.2) internal successors, (641), 4 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:39,922 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:39,923 INFO  L93              Difference]: Finished difference Result 15763 states and 26272 transitions.
[2023-12-25 18:07:39,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:39,923 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 128.2) internal successors, (641), 4 states have internal predecessors, (641), 0 states have call successors, (0), 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 641
[2023-12-25 18:07:39,923 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:39,932 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:39,933 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:39,939 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:39,939 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25799 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25799 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:39,939 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25799 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2023-12-25 18:07:39,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:39,989 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5840.
[2023-12-25 18:07:39,994 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5840 states, 5839 states have (on average 1.6643260832334303) internal successors, (9718), 5839 states have internal predecessors, (9718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:39,998 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 9718 transitions.
[2023-12-25 18:07:39,998 INFO  L78                 Accepts]: Start accepts. Automaton has 5840 states and 9718 transitions. Word has length 641
[2023-12-25 18:07:39,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:39,998 INFO  L495      AbstractCegarLoop]: Abstraction has 5840 states and 9718 transitions.
[2023-12-25 18:07:39,999 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 128.2) internal successors, (641), 4 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:39,999 INFO  L276                IsEmpty]: Start isEmpty. Operand 5840 states and 9718 transitions.
[2023-12-25 18:07:40,002 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 642
[2023-12-25 18:07:40,002 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:40,003 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:40,003 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-12-25 18:07:40,003 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:40,003 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:40,003 INFO  L85        PathProgramCache]: Analyzing trace with hash 2132658362, now seen corresponding path program 1 times
[2023-12-25 18:07:40,004 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:40,004 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237936615]
[2023-12-25 18:07:40,004 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:40,004 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:40,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:40,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:40,782 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:40,782 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237936615]
[2023-12-25 18:07:40,782 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237936615] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:40,782 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:40,783 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:40,783 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004209110]
[2023-12-25 18:07:40,783 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:40,783 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:40,783 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:40,784 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:40,784 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:40,784 INFO  L87              Difference]: Start difference. First operand 5840 states and 9718 transitions. Second operand  has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 5 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:43,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:43,580 INFO  L93              Difference]: Finished difference Result 15939 states and 26534 transitions.
[2023-12-25 18:07:43,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:43,583 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 5 states have internal predecessors, (641), 0 states have call successors, (0), 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 641
[2023-12-25 18:07:43,583 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:43,594 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:43,594 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:43,600 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:43,600 INFO  L413           NwaCegarLoop]: 7549 mSDtfsCounter, 34090 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3953 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34090 SdHoareTripleChecker+Valid, 23995 SdHoareTripleChecker+Invalid, 4041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:43,601 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34090 Valid, 23995 Invalid, 4041 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3953 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-25 18:07:43,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:43,652 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5845.
[2023-12-25 18:07:43,656 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5845 states, 5844 states have (on average 1.6640999315537304) internal successors, (9725), 5844 states have internal predecessors, (9725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:43,660 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5845 states to 5845 states and 9725 transitions.
[2023-12-25 18:07:43,660 INFO  L78                 Accepts]: Start accepts. Automaton has 5845 states and 9725 transitions. Word has length 641
[2023-12-25 18:07:43,661 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:43,661 INFO  L495      AbstractCegarLoop]: Abstraction has 5845 states and 9725 transitions.
[2023-12-25 18:07:43,661 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 5 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:43,661 INFO  L276                IsEmpty]: Start isEmpty. Operand 5845 states and 9725 transitions.
[2023-12-25 18:07:43,664 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 643
[2023-12-25 18:07:43,664 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:43,665 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:43,665 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-12-25 18:07:43,665 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:43,665 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:43,665 INFO  L85        PathProgramCache]: Analyzing trace with hash 1772655138, now seen corresponding path program 1 times
[2023-12-25 18:07:43,665 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:43,665 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117207170]
[2023-12-25 18:07:43,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:43,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:43,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:44,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:44,612 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:44,612 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117207170]
[2023-12-25 18:07:44,612 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117207170] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:44,612 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:44,612 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:07:44,613 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886920862]
[2023-12-25 18:07:44,613 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:44,613 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:07:44,613 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:44,614 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:07:44,614 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:07:44,614 INFO  L87              Difference]: Start difference. First operand 5845 states and 9725 transitions. Second operand  has 5 states, 5 states have (on average 128.4) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:47,739 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:47,739 INFO  L93              Difference]: Finished difference Result 15763 states and 26270 transitions.
[2023-12-25 18:07:47,739 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:47,739 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 128.4) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 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 642
[2023-12-25 18:07:47,740 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:47,749 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:47,749 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:47,753 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:47,754 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25790 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25790 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:47,754 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25790 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2023-12-25 18:07:47,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:47,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5846.
[2023-12-25 18:07:47,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5846 states, 5845 states have (on average 1.6639863130881094) internal successors, (9726), 5845 states have internal predecessors, (9726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:47,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 9726 transitions.
[2023-12-25 18:07:47,815 INFO  L78                 Accepts]: Start accepts. Automaton has 5846 states and 9726 transitions. Word has length 642
[2023-12-25 18:07:47,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:47,816 INFO  L495      AbstractCegarLoop]: Abstraction has 5846 states and 9726 transitions.
[2023-12-25 18:07:47,816 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 128.4) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:47,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 5846 states and 9726 transitions.
[2023-12-25 18:07:47,819 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 643
[2023-12-25 18:07:47,819 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:47,820 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:47,820 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-12-25 18:07:47,820 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:47,820 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:47,820 INFO  L85        PathProgramCache]: Analyzing trace with hash -998549536, now seen corresponding path program 1 times
[2023-12-25 18:07:47,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:47,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078047235]
[2023-12-25 18:07:47,820 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:47,820 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:48,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:48,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:48,589 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:48,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078047235]
[2023-12-25 18:07:48,589 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078047235] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:48,589 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:48,589 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:48,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219330010]
[2023-12-25 18:07:48,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:48,590 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:48,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:48,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:48,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:48,590 INFO  L87              Difference]: Start difference. First operand 5846 states and 9726 transitions. Second operand  has 6 states, 6 states have (on average 107.0) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:51,460 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:51,460 INFO  L93              Difference]: Finished difference Result 15939 states and 26532 transitions.
[2023-12-25 18:07:51,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:51,460 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.0) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 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 642
[2023-12-25 18:07:51,461 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:51,471 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:51,471 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:51,476 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:51,478 INFO  L413           NwaCegarLoop]: 7551 mSDtfsCounter, 34070 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3951 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34070 SdHoareTripleChecker+Valid, 23997 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:51,478 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34070 Valid, 23997 Invalid, 4039 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3951 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-25 18:07:51,486 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:51,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5854.
[2023-12-25 18:07:51,548 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5854 states, 5853 states have (on average 1.66376217324449) internal successors, (9738), 5853 states have internal predecessors, (9738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:51,554 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 9738 transitions.
[2023-12-25 18:07:51,555 INFO  L78                 Accepts]: Start accepts. Automaton has 5854 states and 9738 transitions. Word has length 642
[2023-12-25 18:07:51,555 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:51,555 INFO  L495      AbstractCegarLoop]: Abstraction has 5854 states and 9738 transitions.
[2023-12-25 18:07:51,555 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.0) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:51,555 INFO  L276                IsEmpty]: Start isEmpty. Operand 5854 states and 9738 transitions.
[2023-12-25 18:07:51,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 644
[2023-12-25 18:07:51,570 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:51,571 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:51,571 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-12-25 18:07:51,571 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:51,571 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:51,571 INFO  L85        PathProgramCache]: Analyzing trace with hash 203060744, now seen corresponding path program 1 times
[2023-12-25 18:07:51,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:51,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110182347]
[2023-12-25 18:07:51,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:51,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:51,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:52,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:52,350 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:52,350 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110182347]
[2023-12-25 18:07:52,350 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110182347] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:52,350 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:52,350 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:07:52,350 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727185271]
[2023-12-25 18:07:52,350 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:52,350 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:07:52,351 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:52,351 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:07:52,351 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:07:52,351 INFO  L87              Difference]: Start difference. First operand 5854 states and 9738 transitions. Second operand  has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 5 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:55,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:55,205 INFO  L93              Difference]: Finished difference Result 15939 states and 26531 transitions.
[2023-12-25 18:07:55,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:07:55,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 5 states have internal predecessors, (643), 0 states have call successors, (0), 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 643
[2023-12-25 18:07:55,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:55,217 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:07:55,217 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:07:55,223 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:07:55,224 INFO  L413           NwaCegarLoop]: 7552 mSDtfsCounter, 34057 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3950 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34057 SdHoareTripleChecker+Valid, 23998 SdHoareTripleChecker+Invalid, 4038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:55,224 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34057 Valid, 23998 Invalid, 4038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3950 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-25 18:07:55,231 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:07:55,286 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5860.
[2023-12-25 18:07:55,291 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5860 states, 5859 states have (on average 1.663594470046083) internal successors, (9747), 5859 states have internal predecessors, (9747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:55,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5860 states to 5860 states and 9747 transitions.
[2023-12-25 18:07:55,297 INFO  L78                 Accepts]: Start accepts. Automaton has 5860 states and 9747 transitions. Word has length 643
[2023-12-25 18:07:55,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:55,297 INFO  L495      AbstractCegarLoop]: Abstraction has 5860 states and 9747 transitions.
[2023-12-25 18:07:55,297 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 5 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:55,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 5860 states and 9747 transitions.
[2023-12-25 18:07:55,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 645
[2023-12-25 18:07:55,301 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:55,301 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:55,301 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-12-25 18:07:55,301 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:55,301 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:55,301 INFO  L85        PathProgramCache]: Analyzing trace with hash 745263062, now seen corresponding path program 1 times
[2023-12-25 18:07:55,302 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:55,302 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851175308]
[2023-12-25 18:07:55,302 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:55,302 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:07:55,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:07:56,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:07:56,267 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:07:56,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851175308]
[2023-12-25 18:07:56,267 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851175308] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:07:56,267 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:07:56,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:07:56,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147114518]
[2023-12-25 18:07:56,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:07:56,268 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:07:56,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:07:56,269 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:07:56,269 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:07:56,269 INFO  L87              Difference]: Start difference. First operand 5860 states and 9747 transitions. Second operand  has 5 states, 5 states have (on average 128.8) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:59,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:07:59,880 INFO  L93              Difference]: Finished difference Result 15763 states and 26267 transitions.
[2023-12-25 18:07:59,880 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:07:59,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 128.8) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 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 644
[2023-12-25 18:07:59,881 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:07:59,892 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:07:59,892 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:07:59,898 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:07:59,899 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25772 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25772 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-25 18:07:59,899 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25772 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-25 18:07:59,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:07:59,960 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5861.
[2023-12-25 18:07:59,965 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5861 states, 5860 states have (on average 1.663481228668942) internal successors, (9748), 5860 states have internal predecessors, (9748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:59,970 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5861 states to 5861 states and 9748 transitions.
[2023-12-25 18:07:59,970 INFO  L78                 Accepts]: Start accepts. Automaton has 5861 states and 9748 transitions. Word has length 644
[2023-12-25 18:07:59,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:07:59,971 INFO  L495      AbstractCegarLoop]: Abstraction has 5861 states and 9748 transitions.
[2023-12-25 18:07:59,971 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 128.8) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:07:59,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 5861 states and 9748 transitions.
[2023-12-25 18:07:59,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 645
[2023-12-25 18:07:59,974 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:07:59,974 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:07:59,974 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-12-25 18:07:59,974 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:07:59,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:07:59,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -85390572, now seen corresponding path program 1 times
[2023-12-25 18:07:59,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:07:59,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631962574]
[2023-12-25 18:07:59,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:07:59,975 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:00,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:00,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:00,700 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:00,700 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631962574]
[2023-12-25 18:08:00,700 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631962574] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:00,700 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:00,700 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:00,700 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824238749]
[2023-12-25 18:08:00,700 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:00,700 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:00,700 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:00,701 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:00,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:00,701 INFO  L87              Difference]: Start difference. First operand 5861 states and 9748 transitions. Second operand  has 6 states, 6 states have (on average 107.33333333333333) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:02,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:02,898 INFO  L93              Difference]: Finished difference Result 15939 states and 26529 transitions.
[2023-12-25 18:08:02,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:02,898 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.33333333333333) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 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 644
[2023-12-25 18:08:02,899 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:02,910 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:02,910 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:02,916 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:02,917 INFO  L413           NwaCegarLoop]: 7554 mSDtfsCounter, 34041 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3948 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34041 SdHoareTripleChecker+Valid, 24000 SdHoareTripleChecker+Invalid, 4036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:02,917 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34041 Valid, 24000 Invalid, 4036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3948 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-12-25 18:08:02,925 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:02,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5866.
[2023-12-25 18:08:02,987 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5866 states, 5865 states have (on average 1.6632566069906223) internal successors, (9755), 5865 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:02,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5866 states to 5866 states and 9755 transitions.
[2023-12-25 18:08:02,992 INFO  L78                 Accepts]: Start accepts. Automaton has 5866 states and 9755 transitions. Word has length 644
[2023-12-25 18:08:02,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:02,993 INFO  L495      AbstractCegarLoop]: Abstraction has 5866 states and 9755 transitions.
[2023-12-25 18:08:02,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.33333333333333) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:02,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 5866 states and 9755 transitions.
[2023-12-25 18:08:02,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 646
[2023-12-25 18:08:02,996 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:02,996 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:02,996 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2023-12-25 18:08:02,996 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:02,997 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:02,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 443432892, now seen corresponding path program 1 times
[2023-12-25 18:08:02,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:02,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513225931]
[2023-12-25 18:08:02,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:02,997 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:03,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:03,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:03,758 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:03,758 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513225931]
[2023-12-25 18:08:03,758 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513225931] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:03,758 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:03,758 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:03,758 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825027988]
[2023-12-25 18:08:03,758 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:03,759 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:03,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:03,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:03,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:03,760 INFO  L87              Difference]: Start difference. First operand 5866 states and 9755 transitions. Second operand  has 6 states, 6 states have (on average 107.5) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:07,912 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:07,912 INFO  L93              Difference]: Finished difference Result 15939 states and 26528 transitions.
[2023-12-25 18:08:07,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:07,912 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.5) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 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 645
[2023-12-25 18:08:07,913 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:07,921 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:07,921 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:07,924 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:07,925 INFO  L413           NwaCegarLoop]: 7555 mSDtfsCounter, 25847 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5800 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25847 SdHoareTripleChecker+Valid, 30825 SdHoareTripleChecker+Invalid, 5888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:07,925 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25847 Valid, 30825 Invalid, 5888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5800 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2023-12-25 18:08:07,932 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:07,979 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5872.
[2023-12-25 18:08:07,984 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5872 states, 5871 states have (on average 1.663089763243059) internal successors, (9764), 5871 states have internal predecessors, (9764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:07,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 9764 transitions.
[2023-12-25 18:08:07,991 INFO  L78                 Accepts]: Start accepts. Automaton has 5872 states and 9764 transitions. Word has length 645
[2023-12-25 18:08:07,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:07,992 INFO  L495      AbstractCegarLoop]: Abstraction has 5872 states and 9764 transitions.
[2023-12-25 18:08:07,992 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.5) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:07,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 5872 states and 9764 transitions.
[2023-12-25 18:08:07,995 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 647
[2023-12-25 18:08:07,995 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:07,995 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:07,995 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2023-12-25 18:08:07,995 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:07,996 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:07,996 INFO  L85        PathProgramCache]: Analyzing trace with hash -1268668150, now seen corresponding path program 1 times
[2023-12-25 18:08:07,996 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:07,996 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646058528]
[2023-12-25 18:08:07,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:07,996 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:08,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:08,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:08,974 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:08,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646058528]
[2023-12-25 18:08:08,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646058528] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:08,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:08,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:08:08,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073209645]
[2023-12-25 18:08:08,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:08,975 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:08:08,975 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:08,976 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:08:08,976 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:08:08,976 INFO  L87              Difference]: Start difference. First operand 5872 states and 9764 transitions. Second operand  has 5 states, 5 states have (on average 129.2) internal successors, (646), 4 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:12,466 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:12,466 INFO  L93              Difference]: Finished difference Result 15763 states and 26264 transitions.
[2023-12-25 18:08:12,466 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:08:12,467 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 129.2) internal successors, (646), 4 states have internal predecessors, (646), 0 states have call successors, (0), 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 646
[2023-12-25 18:08:12,467 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:12,478 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:08:12,479 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:08:12,484 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:08:12,484 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25756 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25756 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:12,484 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25756 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2023-12-25 18:08:12,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:08:12,539 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5873.
[2023-12-25 18:08:12,543 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5873 states, 5872 states have (on average 1.6629768392370572) internal successors, (9765), 5872 states have internal predecessors, (9765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:12,547 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5873 states to 5873 states and 9765 transitions.
[2023-12-25 18:08:12,547 INFO  L78                 Accepts]: Start accepts. Automaton has 5873 states and 9765 transitions. Word has length 646
[2023-12-25 18:08:12,548 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:12,548 INFO  L495      AbstractCegarLoop]: Abstraction has 5873 states and 9765 transitions.
[2023-12-25 18:08:12,548 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 129.2) internal successors, (646), 4 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:12,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 5873 states and 9765 transitions.
[2023-12-25 18:08:12,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 647
[2023-12-25 18:08:12,551 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:12,551 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:12,551 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2023-12-25 18:08:12,551 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:12,552 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:12,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -759889336, now seen corresponding path program 1 times
[2023-12-25 18:08:12,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:12,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412466514]
[2023-12-25 18:08:12,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:12,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:12,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:13,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:13,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:13,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412466514]
[2023-12-25 18:08:13,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412466514] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:13,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:13,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:13,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570882895]
[2023-12-25 18:08:13,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:13,313 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:13,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:13,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:13,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:13,314 INFO  L87              Difference]: Start difference. First operand 5873 states and 9765 transitions. Second operand  has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:17,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:17,448 INFO  L93              Difference]: Finished difference Result 15939 states and 26526 transitions.
[2023-12-25 18:08:17,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:17,448 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 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 646
[2023-12-25 18:08:17,449 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:17,460 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:17,460 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:17,466 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:17,467 INFO  L413           NwaCegarLoop]: 7557 mSDtfsCounter, 25838 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5798 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25838 SdHoareTripleChecker+Valid, 30827 SdHoareTripleChecker+Invalid, 5886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:17,467 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25838 Valid, 30827 Invalid, 5886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5798 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-25 18:08:17,477 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:17,539 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5878.
[2023-12-25 18:08:17,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5878 states, 5877 states have (on average 1.6627531053258464) internal successors, (9772), 5877 states have internal predecessors, (9772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:17,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 9772 transitions.
[2023-12-25 18:08:17,551 INFO  L78                 Accepts]: Start accepts. Automaton has 5878 states and 9772 transitions. Word has length 646
[2023-12-25 18:08:17,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:17,552 INFO  L495      AbstractCegarLoop]: Abstraction has 5878 states and 9772 transitions.
[2023-12-25 18:08:17,552 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:17,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 5878 states and 9772 transitions.
[2023-12-25 18:08:17,556 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 648
[2023-12-25 18:08:17,556 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:17,556 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:17,557 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2023-12-25 18:08:17,557 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:17,557 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:17,557 INFO  L85        PathProgramCache]: Analyzing trace with hash -599970448, now seen corresponding path program 1 times
[2023-12-25 18:08:17,557 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:17,557 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421425248]
[2023-12-25 18:08:17,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:17,558 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:17,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:18,551 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:18,551 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:18,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421425248]
[2023-12-25 18:08:18,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421425248] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:18,552 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:18,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:18,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886506453]
[2023-12-25 18:08:18,552 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:18,552 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:18,552 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:18,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:18,553 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:18,553 INFO  L87              Difference]: Start difference. First operand 5878 states and 9772 transitions. Second operand  has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:21,474 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:21,475 INFO  L93              Difference]: Finished difference Result 15939 states and 26525 transitions.
[2023-12-25 18:08:21,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:21,475 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 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 647
[2023-12-25 18:08:21,476 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:21,486 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:21,486 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:21,493 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:21,494 INFO  L413           NwaCegarLoop]: 7558 mSDtfsCounter, 33999 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3944 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33999 SdHoareTripleChecker+Valid, 24004 SdHoareTripleChecker+Invalid, 4032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:21,494 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33999 Valid, 24004 Invalid, 4032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3944 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-25 18:08:21,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:21,559 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5884.
[2023-12-25 18:08:21,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5884 states, 5883 states have (on average 1.6625871154173042) internal successors, (9781), 5883 states have internal predecessors, (9781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:21,572 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5884 states to 5884 states and 9781 transitions.
[2023-12-25 18:08:21,572 INFO  L78                 Accepts]: Start accepts. Automaton has 5884 states and 9781 transitions. Word has length 647
[2023-12-25 18:08:21,573 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:21,573 INFO  L495      AbstractCegarLoop]: Abstraction has 5884 states and 9781 transitions.
[2023-12-25 18:08:21,573 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:21,573 INFO  L276                IsEmpty]: Start isEmpty. Operand 5884 states and 9781 transitions.
[2023-12-25 18:08:21,577 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 649
[2023-12-25 18:08:21,577 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:21,578 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:21,578 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2023-12-25 18:08:21,578 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:21,578 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:21,579 INFO  L85        PathProgramCache]: Analyzing trace with hash -821574082, now seen corresponding path program 1 times
[2023-12-25 18:08:21,579 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:21,579 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404576578]
[2023-12-25 18:08:21,579 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:21,579 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:21,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:22,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:22,822 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:22,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404576578]
[2023-12-25 18:08:22,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404576578] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:22,823 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:22,823 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:08:22,823 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301920789]
[2023-12-25 18:08:22,823 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:22,823 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:08:22,823 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:22,824 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:08:22,824 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:08:22,824 INFO  L87              Difference]: Start difference. First operand 5884 states and 9781 transitions. Second operand  has 5 states, 5 states have (on average 129.6) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:26,136 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:26,136 INFO  L93              Difference]: Finished difference Result 15763 states and 26261 transitions.
[2023-12-25 18:08:26,136 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:08:26,136 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 129.6) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 648
[2023-12-25 18:08:26,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:26,146 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:08:26,146 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:08:26,151 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:08:26,152 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25740 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25740 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:26,152 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25740 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2023-12-25 18:08:26,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:08:26,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5885.
[2023-12-25 18:08:26,206 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5885 states, 5884 states have (on average 1.6624745071380014) internal successors, (9782), 5884 states have internal predecessors, (9782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:26,210 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 9782 transitions.
[2023-12-25 18:08:26,211 INFO  L78                 Accepts]: Start accepts. Automaton has 5885 states and 9782 transitions. Word has length 648
[2023-12-25 18:08:26,211 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:26,211 INFO  L495      AbstractCegarLoop]: Abstraction has 5885 states and 9782 transitions.
[2023-12-25 18:08:26,211 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 129.6) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:26,211 INFO  L276                IsEmpty]: Start isEmpty. Operand 5885 states and 9782 transitions.
[2023-12-25 18:08:26,214 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 649
[2023-12-25 18:08:26,214 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:26,214 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:26,214 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2023-12-25 18:08:26,215 INFO  L420      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:26,215 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:26,215 INFO  L85        PathProgramCache]: Analyzing trace with hash 1278164348, now seen corresponding path program 1 times
[2023-12-25 18:08:26,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:26,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731533828]
[2023-12-25 18:08:26,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:26,215 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:26,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:26,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:26,951 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:26,951 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731533828]
[2023-12-25 18:08:26,951 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731533828] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:26,951 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:26,952 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:26,952 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968786513]
[2023-12-25 18:08:26,952 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:26,952 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:26,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:26,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:26,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:26,953 INFO  L87              Difference]: Start difference. First operand 5885 states and 9782 transitions. Second operand  has 6 states, 6 states have (on average 108.0) internal successors, (648), 5 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:29,534 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:29,534 INFO  L93              Difference]: Finished difference Result 15939 states and 26523 transitions.
[2023-12-25 18:08:29,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:29,535 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 108.0) internal successors, (648), 5 states have internal predecessors, (648), 0 states have call successors, (0), 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 648
[2023-12-25 18:08:29,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:29,545 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:29,545 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:29,550 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:29,551 INFO  L413           NwaCegarLoop]: 7560 mSDtfsCounter, 33983 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33983 SdHoareTripleChecker+Valid, 24006 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:29,551 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33983 Valid, 24006 Invalid, 4030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2023-12-25 18:08:29,557 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:29,607 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5890.
[2023-12-25 18:08:29,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5890 states, 5889 states have (on average 1.6622516556291391) internal successors, (9789), 5889 states have internal predecessors, (9789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:29,616 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 9789 transitions.
[2023-12-25 18:08:29,617 INFO  L78                 Accepts]: Start accepts. Automaton has 5890 states and 9789 transitions. Word has length 648
[2023-12-25 18:08:29,617 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:29,617 INFO  L495      AbstractCegarLoop]: Abstraction has 5890 states and 9789 transitions.
[2023-12-25 18:08:29,617 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 108.0) internal successors, (648), 5 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:29,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 5890 states and 9789 transitions.
[2023-12-25 18:08:29,620 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 650
[2023-12-25 18:08:29,620 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:29,620 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:29,620 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2023-12-25 18:08:29,621 INFO  L420      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:29,621 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:29,621 INFO  L85        PathProgramCache]: Analyzing trace with hash 1319059236, now seen corresponding path program 1 times
[2023-12-25 18:08:29,621 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:29,621 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465936501]
[2023-12-25 18:08:29,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:29,621 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:29,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:30,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:30,373 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:30,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465936501]
[2023-12-25 18:08:30,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465936501] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:30,373 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:30,373 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:30,373 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249982831]
[2023-12-25 18:08:30,373 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:30,374 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:30,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:30,374 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:30,375 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:30,375 INFO  L87              Difference]: Start difference. First operand 5890 states and 9789 transitions. Second operand  has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:32,913 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:32,913 INFO  L93              Difference]: Finished difference Result 15939 states and 26522 transitions.
[2023-12-25 18:08:32,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:32,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 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 649
[2023-12-25 18:08:32,914 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:32,924 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:32,924 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:32,930 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:32,930 INFO  L413           NwaCegarLoop]: 7561 mSDtfsCounter, 33970 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3941 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33970 SdHoareTripleChecker+Valid, 24007 SdHoareTripleChecker+Invalid, 4029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:32,930 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33970 Valid, 24007 Invalid, 4029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3941 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-25 18:08:32,938 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:32,996 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5896.
[2023-12-25 18:08:33,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5896 states, 5895 states have (on average 1.662086513994911) internal successors, (9798), 5895 states have internal predecessors, (9798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:33,010 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 9798 transitions.
[2023-12-25 18:08:33,010 INFO  L78                 Accepts]: Start accepts. Automaton has 5896 states and 9798 transitions. Word has length 649
[2023-12-25 18:08:33,010 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:33,011 INFO  L495      AbstractCegarLoop]: Abstraction has 5896 states and 9798 transitions.
[2023-12-25 18:08:33,011 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:33,011 INFO  L276                IsEmpty]: Start isEmpty. Operand 5896 states and 9798 transitions.
[2023-12-25 18:08:33,014 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 651
[2023-12-25 18:08:33,014 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:33,014 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:33,014 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2023-12-25 18:08:33,014 INFO  L420      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:33,015 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:33,015 INFO  L85        PathProgramCache]: Analyzing trace with hash 732833650, now seen corresponding path program 1 times
[2023-12-25 18:08:33,015 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:33,015 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752376459]
[2023-12-25 18:08:33,015 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:33,015 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:33,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:34,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:34,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:34,080 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752376459]
[2023-12-25 18:08:34,080 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752376459] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:34,080 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:34,080 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:08:34,080 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718452323]
[2023-12-25 18:08:34,080 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:34,081 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:08:34,081 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:34,081 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:08:34,081 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:08:34,081 INFO  L87              Difference]: Start difference. First operand 5896 states and 9798 transitions. Second operand  has 5 states, 5 states have (on average 130.0) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:37,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:37,716 INFO  L93              Difference]: Finished difference Result 15763 states and 26258 transitions.
[2023-12-25 18:08:37,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:08:37,716 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 130.0) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 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 650
[2023-12-25 18:08:37,717 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:37,726 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:08:37,726 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:08:37,731 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:08:37,731 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25724 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25724 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:37,731 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25724 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-25 18:08:37,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:08:37,785 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5897.
[2023-12-25 18:08:37,789 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5897 states, 5896 states have (on average 1.6619742198100407) internal successors, (9799), 5896 states have internal predecessors, (9799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:37,793 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 9799 transitions.
[2023-12-25 18:08:37,793 INFO  L78                 Accepts]: Start accepts. Automaton has 5897 states and 9799 transitions. Word has length 650
[2023-12-25 18:08:37,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:37,794 INFO  L495      AbstractCegarLoop]: Abstraction has 5897 states and 9799 transitions.
[2023-12-25 18:08:37,794 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 130.0) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:37,794 INFO  L276                IsEmpty]: Start isEmpty. Operand 5897 states and 9799 transitions.
[2023-12-25 18:08:37,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 651
[2023-12-25 18:08:37,797 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:37,797 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:37,797 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2023-12-25 18:08:37,797 INFO  L420      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:37,798 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:37,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -190333776, now seen corresponding path program 1 times
[2023-12-25 18:08:37,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:37,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718674160]
[2023-12-25 18:08:37,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:37,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:38,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:38,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:38,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:38,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718674160]
[2023-12-25 18:08:38,624 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718674160] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:38,624 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:38,624 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:38,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719725745]
[2023-12-25 18:08:38,624 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:38,624 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:38,625 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:38,625 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:38,625 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:38,625 INFO  L87              Difference]: Start difference. First operand 5897 states and 9799 transitions. Second operand  has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:41,858 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:41,858 INFO  L93              Difference]: Finished difference Result 15939 states and 26520 transitions.
[2023-12-25 18:08:41,858 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:41,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 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 650
[2023-12-25 18:08:41,859 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:41,869 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:41,869 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:41,874 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:41,875 INFO  L413           NwaCegarLoop]: 7563 mSDtfsCounter, 25806 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5792 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25806 SdHoareTripleChecker+Valid, 30833 SdHoareTripleChecker+Invalid, 5880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:41,875 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25806 Valid, 30833 Invalid, 5880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5792 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2023-12-25 18:08:41,881 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:41,929 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5902.
[2023-12-25 18:08:41,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5902 states, 5901 states have (on average 1.6617522453821387) internal successors, (9806), 5901 states have internal predecessors, (9806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:41,937 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 9806 transitions.
[2023-12-25 18:08:41,938 INFO  L78                 Accepts]: Start accepts. Automaton has 5902 states and 9806 transitions. Word has length 650
[2023-12-25 18:08:41,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:41,938 INFO  L495      AbstractCegarLoop]: Abstraction has 5902 states and 9806 transitions.
[2023-12-25 18:08:41,938 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:41,938 INFO  L276                IsEmpty]: Start isEmpty. Operand 5902 states and 9806 transitions.
[2023-12-25 18:08:41,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 652
[2023-12-25 18:08:41,941 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:41,941 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:41,942 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2023-12-25 18:08:41,942 INFO  L420      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:41,942 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:41,942 INFO  L85        PathProgramCache]: Analyzing trace with hash 1772909784, now seen corresponding path program 1 times
[2023-12-25 18:08:41,942 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:41,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115769237]
[2023-12-25 18:08:41,942 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:41,942 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:42,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:42,837 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:42,837 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:42,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115769237]
[2023-12-25 18:08:42,837 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115769237] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:42,837 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:42,837 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:42,837 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374713649]
[2023-12-25 18:08:42,837 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:42,838 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:42,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:42,839 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:42,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:42,839 INFO  L87              Difference]: Start difference. First operand 5902 states and 9806 transitions. Second operand  has 6 states, 6 states have (on average 108.5) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:45,560 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:45,560 INFO  L93              Difference]: Finished difference Result 15939 states and 26519 transitions.
[2023-12-25 18:08:45,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:45,561 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 108.5) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 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 651
[2023-12-25 18:08:45,561 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:45,570 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:45,570 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:45,575 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:45,576 INFO  L413           NwaCegarLoop]: 7564 mSDtfsCounter, 33941 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33941 SdHoareTripleChecker+Valid, 24010 SdHoareTripleChecker+Invalid, 4026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:45,576 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33941 Valid, 24010 Invalid, 4026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-25 18:08:45,582 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:45,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5908.
[2023-12-25 18:08:45,633 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5908 states, 5907 states have (on average 1.6615879465041477) internal successors, (9815), 5907 states have internal predecessors, (9815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:45,637 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 9815 transitions.
[2023-12-25 18:08:45,637 INFO  L78                 Accepts]: Start accepts. Automaton has 5908 states and 9815 transitions. Word has length 651
[2023-12-25 18:08:45,638 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:45,638 INFO  L495      AbstractCegarLoop]: Abstraction has 5908 states and 9815 transitions.
[2023-12-25 18:08:45,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 108.5) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:45,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 5908 states and 9815 transitions.
[2023-12-25 18:08:45,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 653
[2023-12-25 18:08:45,641 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:45,641 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:45,641 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2023-12-25 18:08:45,642 INFO  L420      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:45,642 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:45,642 INFO  L85        PathProgramCache]: Analyzing trace with hash -962278234, now seen corresponding path program 1 times
[2023-12-25 18:08:45,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:45,642 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866075752]
[2023-12-25 18:08:45,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:45,642 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:45,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:46,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:46,605 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:46,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866075752]
[2023-12-25 18:08:46,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866075752] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:46,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:46,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:08:46,605 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629988124]
[2023-12-25 18:08:46,605 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:46,606 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:08:46,606 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:46,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:08:46,606 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:08:46,607 INFO  L87              Difference]: Start difference. First operand 5908 states and 9815 transitions. Second operand  has 5 states, 5 states have (on average 130.4) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:49,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:49,701 INFO  L93              Difference]: Finished difference Result 15763 states and 26255 transitions.
[2023-12-25 18:08:49,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:08:49,701 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 130.4) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 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 652
[2023-12-25 18:08:49,701 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:49,711 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:08:49,711 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:08:49,717 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:08:49,718 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25708 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25708 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:49,718 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25708 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2023-12-25 18:08:49,725 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:08:49,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5909.
[2023-12-25 18:08:49,781 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5909 states, 5908 states have (on average 1.6614759647935002) internal successors, (9816), 5908 states have internal predecessors, (9816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:49,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5909 states to 5909 states and 9816 transitions.
[2023-12-25 18:08:49,787 INFO  L78                 Accepts]: Start accepts. Automaton has 5909 states and 9816 transitions. Word has length 652
[2023-12-25 18:08:49,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:49,787 INFO  L495      AbstractCegarLoop]: Abstraction has 5909 states and 9816 transitions.
[2023-12-25 18:08:49,787 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 130.4) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:49,787 INFO  L276                IsEmpty]: Start isEmpty. Operand 5909 states and 9816 transitions.
[2023-12-25 18:08:49,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 653
[2023-12-25 18:08:49,790 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:49,791 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:49,791 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2023-12-25 18:08:49,791 INFO  L420      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:49,791 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:49,791 INFO  L85        PathProgramCache]: Analyzing trace with hash -1502707740, now seen corresponding path program 1 times
[2023-12-25 18:08:49,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:49,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991830684]
[2023-12-25 18:08:49,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:49,791 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:50,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:50,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:50,601 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:50,601 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991830684]
[2023-12-25 18:08:50,601 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991830684] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:50,601 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:50,601 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:50,601 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807784531]
[2023-12-25 18:08:50,601 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:50,602 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:50,602 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:50,602 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:50,602 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:50,603 INFO  L87              Difference]: Start difference. First operand 5909 states and 9816 transitions. Second operand  has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 5 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:54,720 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:54,721 INFO  L93              Difference]: Finished difference Result 15939 states and 26517 transitions.
[2023-12-25 18:08:54,721 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:54,721 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 5 states have internal predecessors, (652), 0 states have call successors, (0), 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 652
[2023-12-25 18:08:54,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:54,732 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:54,733 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:54,739 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:54,740 INFO  L413           NwaCegarLoop]: 7566 mSDtfsCounter, 25790 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5789 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25790 SdHoareTripleChecker+Valid, 30836 SdHoareTripleChecker+Invalid, 5877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:54,741 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25790 Valid, 30836 Invalid, 5877 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5789 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-25 18:08:54,751 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:54,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5914.
[2023-12-25 18:08:54,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5914 states, 5913 states have (on average 1.6612548621681043) internal successors, (9823), 5913 states have internal predecessors, (9823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:54,814 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 9823 transitions.
[2023-12-25 18:08:54,815 INFO  L78                 Accepts]: Start accepts. Automaton has 5914 states and 9823 transitions. Word has length 652
[2023-12-25 18:08:54,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:54,815 INFO  L495      AbstractCegarLoop]: Abstraction has 5914 states and 9823 transitions.
[2023-12-25 18:08:54,815 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 5 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:54,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 5914 states and 9823 transitions.
[2023-12-25 18:08:54,818 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 654
[2023-12-25 18:08:54,818 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:54,819 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:54,819 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2023-12-25 18:08:54,819 INFO  L420      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:54,829 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:54,829 INFO  L85        PathProgramCache]: Analyzing trace with hash 1618792076, now seen corresponding path program 1 times
[2023-12-25 18:08:54,830 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:54,830 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456363582]
[2023-12-25 18:08:54,830 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:54,830 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:55,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:55,626 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:55,626 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:55,627 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456363582]
[2023-12-25 18:08:55,627 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456363582] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:55,627 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:55,627 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:08:55,627 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381990450]
[2023-12-25 18:08:55,627 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:55,627 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:08:55,627 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:55,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:08:55,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:08:55,628 INFO  L87              Difference]: Start difference. First operand 5914 states and 9823 transitions. Second operand  has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:58,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:08:58,099 INFO  L93              Difference]: Finished difference Result 15939 states and 26516 transitions.
[2023-12-25 18:08:58,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:08:58,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 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 653
[2023-12-25 18:08:58,100 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:08:58,111 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:08:58,111 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:08:58,116 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:08:58,117 INFO  L413           NwaCegarLoop]: 7567 mSDtfsCounter, 33912 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3935 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33912 SdHoareTripleChecker+Valid, 24013 SdHoareTripleChecker+Invalid, 4023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-25 18:08:58,117 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33912 Valid, 24013 Invalid, 4023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3935 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-25 18:08:58,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:08:58,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5920.
[2023-12-25 18:08:58,176 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5920 states, 5919 states have (on average 1.6610914005744213) internal successors, (9832), 5919 states have internal predecessors, (9832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:58,181 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5920 states to 5920 states and 9832 transitions.
[2023-12-25 18:08:58,181 INFO  L78                 Accepts]: Start accepts. Automaton has 5920 states and 9832 transitions. Word has length 653
[2023-12-25 18:08:58,181 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:08:58,181 INFO  L495      AbstractCegarLoop]: Abstraction has 5920 states and 9832 transitions.
[2023-12-25 18:08:58,182 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:08:58,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 5920 states and 9832 transitions.
[2023-12-25 18:08:58,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 655
[2023-12-25 18:08:58,185 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:08:58,185 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:08:58,186 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2023-12-25 18:08:58,186 INFO  L420      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:08:58,186 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:08:58,186 INFO  L85        PathProgramCache]: Analyzing trace with hash -1455704614, now seen corresponding path program 1 times
[2023-12-25 18:08:58,186 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:08:58,186 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126273728]
[2023-12-25 18:08:58,186 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:08:58,186 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:08:58,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:08:59,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:08:59,164 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:08:59,164 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126273728]
[2023-12-25 18:08:59,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126273728] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:08:59,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:08:59,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:08:59,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17146823]
[2023-12-25 18:08:59,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:08:59,165 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:08:59,165 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:08:59,165 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:08:59,166 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:08:59,166 INFO  L87              Difference]: Start difference. First operand 5920 states and 9832 transitions. Second operand  has 5 states, 5 states have (on average 130.8) internal successors, (654), 4 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:02,444 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:02,444 INFO  L93              Difference]: Finished difference Result 15763 states and 26252 transitions.
[2023-12-25 18:09:02,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:02,444 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 130.8) internal successors, (654), 4 states have internal predecessors, (654), 0 states have call successors, (0), 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 654
[2023-12-25 18:09:02,445 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:02,454 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:02,454 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:02,458 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:02,459 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25692 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25692 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:02,459 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25692 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2023-12-25 18:09:02,465 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:02,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5921.
[2023-12-25 18:09:02,522 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5921 states, 5920 states have (on average 1.6609797297297297) internal successors, (9833), 5920 states have internal predecessors, (9833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:02,527 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 9833 transitions.
[2023-12-25 18:09:02,528 INFO  L78                 Accepts]: Start accepts. Automaton has 5921 states and 9833 transitions. Word has length 654
[2023-12-25 18:09:02,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:02,528 INFO  L495      AbstractCegarLoop]: Abstraction has 5921 states and 9833 transitions.
[2023-12-25 18:09:02,528 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 130.8) internal successors, (654), 4 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:02,528 INFO  L276                IsEmpty]: Start isEmpty. Operand 5921 states and 9833 transitions.
[2023-12-25 18:09:02,531 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 655
[2023-12-25 18:09:02,532 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:02,532 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:02,532 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2023-12-25 18:09:02,532 INFO  L420      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:02,533 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:02,533 INFO  L85        PathProgramCache]: Analyzing trace with hash 1221822232, now seen corresponding path program 1 times
[2023-12-25 18:09:02,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:02,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043247978]
[2023-12-25 18:09:02,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:02,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:02,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:03,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:03,346 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:03,346 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043247978]
[2023-12-25 18:09:03,346 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043247978] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:03,346 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:03,347 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:03,347 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473634339]
[2023-12-25 18:09:03,347 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:03,347 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:03,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:03,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:03,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:03,348 INFO  L87              Difference]: Start difference. First operand 5921 states and 9833 transitions. Second operand  has 6 states, 6 states have (on average 109.0) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:06,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:06,093 INFO  L93              Difference]: Finished difference Result 15939 states and 26514 transitions.
[2023-12-25 18:09:06,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:06,101 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 109.0) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 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 654
[2023-12-25 18:09:06,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:06,111 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:06,112 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:06,118 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:06,118 INFO  L413           NwaCegarLoop]: 7569 mSDtfsCounter, 33892 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33892 SdHoareTripleChecker+Valid, 24015 SdHoareTripleChecker+Invalid, 4021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:06,119 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33892 Valid, 24015 Invalid, 4021 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-25 18:09:06,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:06,181 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5929.
[2023-12-25 18:09:06,187 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5929 states, 5928 states have (on average 1.6607624831309042) internal successors, (9845), 5928 states have internal predecessors, (9845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:06,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 9845 transitions.
[2023-12-25 18:09:06,192 INFO  L78                 Accepts]: Start accepts. Automaton has 5929 states and 9845 transitions. Word has length 654
[2023-12-25 18:09:06,192 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:06,192 INFO  L495      AbstractCegarLoop]: Abstraction has 5929 states and 9845 transitions.
[2023-12-25 18:09:06,192 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 109.0) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:06,192 INFO  L276                IsEmpty]: Start isEmpty. Operand 5929 states and 9845 transitions.
[2023-12-25 18:09:06,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 656
[2023-12-25 18:09:06,196 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:06,196 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:06,196 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2023-12-25 18:09:06,197 INFO  L420      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:06,197 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:06,197 INFO  L85        PathProgramCache]: Analyzing trace with hash 1165488220, now seen corresponding path program 1 times
[2023-12-25 18:09:06,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:06,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226216384]
[2023-12-25 18:09:06,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:06,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:06,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:07,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:07,306 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:07,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226216384]
[2023-12-25 18:09:07,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226216384] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:07,306 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:07,306 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:09:07,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97883714]
[2023-12-25 18:09:07,306 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:07,307 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:09:07,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:07,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:09:07,308 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:09:07,308 INFO  L87              Difference]: Start difference. First operand 5929 states and 9845 transitions. Second operand  has 5 states, 5 states have (on average 131.0) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:10,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:10,978 INFO  L93              Difference]: Finished difference Result 15763 states and 26250 transitions.
[2023-12-25 18:09:10,979 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:10,979 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 131.0) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 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 655
[2023-12-25 18:09:10,979 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:10,987 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:10,987 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:10,990 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:10,998 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25681 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25681 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:10,998 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25681 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-12-25 18:09:11,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:11,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5930.
[2023-12-25 18:09:11,059 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5930 states, 5929 states have (on average 1.6606510372744139) internal successors, (9846), 5929 states have internal predecessors, (9846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:11,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5930 states to 5930 states and 9846 transitions.
[2023-12-25 18:09:11,064 INFO  L78                 Accepts]: Start accepts. Automaton has 5930 states and 9846 transitions. Word has length 655
[2023-12-25 18:09:11,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:11,064 INFO  L495      AbstractCegarLoop]: Abstraction has 5930 states and 9846 transitions.
[2023-12-25 18:09:11,064 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 131.0) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:11,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 5930 states and 9846 transitions.
[2023-12-25 18:09:11,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 656
[2023-12-25 18:09:11,067 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:11,068 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:11,068 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2023-12-25 18:09:11,068 INFO  L420      AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:11,068 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:11,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 580716570, now seen corresponding path program 1 times
[2023-12-25 18:09:11,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:11,068 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701806288]
[2023-12-25 18:09:11,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:11,069 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:11,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:11,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:11,862 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:11,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701806288]
[2023-12-25 18:09:11,862 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701806288] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:11,862 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:11,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:11,863 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336758934]
[2023-12-25 18:09:11,863 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:11,863 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:11,863 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:11,864 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:11,864 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:11,864 INFO  L87              Difference]: Start difference. First operand 5930 states and 9846 transitions. Second operand  has 6 states, 6 states have (on average 109.16666666666667) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:15,963 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:15,964 INFO  L93              Difference]: Finished difference Result 15939 states and 26512 transitions.
[2023-12-25 18:09:15,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:15,964 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 109.16666666666667) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 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 655
[2023-12-25 18:09:15,965 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:15,976 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:15,977 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:15,983 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:15,985 INFO  L413           NwaCegarLoop]: 7571 mSDtfsCounter, 25763 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5784 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25763 SdHoareTripleChecker+Valid, 30841 SdHoareTripleChecker+Invalid, 5872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:15,988 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25763 Valid, 30841 Invalid, 5872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5784 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-25 18:09:15,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:16,040 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5935.
[2023-12-25 18:09:16,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5935 states, 5934 states have (on average 1.6604314122008763) internal successors, (9853), 5934 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:16,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 9853 transitions.
[2023-12-25 18:09:16,049 INFO  L78                 Accepts]: Start accepts. Automaton has 5935 states and 9853 transitions. Word has length 655
[2023-12-25 18:09:16,050 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:16,050 INFO  L495      AbstractCegarLoop]: Abstraction has 5935 states and 9853 transitions.
[2023-12-25 18:09:16,050 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 109.16666666666667) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:16,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 5935 states and 9853 transitions.
[2023-12-25 18:09:16,053 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 657
[2023-12-25 18:09:16,053 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:16,053 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:16,053 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2023-12-25 18:09:16,054 INFO  L420      AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:16,054 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:16,054 INFO  L85        PathProgramCache]: Analyzing trace with hash 560440270, now seen corresponding path program 1 times
[2023-12-25 18:09:16,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:16,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519344414]
[2023-12-25 18:09:16,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:16,054 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:16,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:17,016 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:17,016 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:17,017 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519344414]
[2023-12-25 18:09:17,017 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519344414] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:17,017 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:17,017 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:09:17,017 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154498284]
[2023-12-25 18:09:17,017 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:17,017 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:09:17,017 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:17,018 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:09:17,018 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:09:17,018 INFO  L87              Difference]: Start difference. First operand 5935 states and 9853 transitions. Second operand  has 5 states, 5 states have (on average 131.2) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:21,110 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:21,110 INFO  L93              Difference]: Finished difference Result 15763 states and 26248 transitions.
[2023-12-25 18:09:21,110 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:21,111 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 131.2) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 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 656
[2023-12-25 18:09:21,111 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:21,125 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:21,125 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:21,130 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:21,132 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25672 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25672 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:21,132 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25672 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-25 18:09:21,141 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:21,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5936.
[2023-12-25 18:09:21,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5936 states, 5935 states have (on average 1.6603201347935974) internal successors, (9854), 5935 states have internal predecessors, (9854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:21,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 9854 transitions.
[2023-12-25 18:09:21,203 INFO  L78                 Accepts]: Start accepts. Automaton has 5936 states and 9854 transitions. Word has length 656
[2023-12-25 18:09:21,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:21,203 INFO  L495      AbstractCegarLoop]: Abstraction has 5936 states and 9854 transitions.
[2023-12-25 18:09:21,204 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 131.2) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:21,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 5936 states and 9854 transitions.
[2023-12-25 18:09:21,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 657
[2023-12-25 18:09:21,207 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:21,207 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:21,207 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2023-12-25 18:09:21,207 INFO  L420      AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:21,207 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:21,208 INFO  L85        PathProgramCache]: Analyzing trace with hash 1507478156, now seen corresponding path program 1 times
[2023-12-25 18:09:21,208 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:21,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814989819]
[2023-12-25 18:09:21,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:21,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:21,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:22,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:22,238 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:22,238 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814989819]
[2023-12-25 18:09:22,238 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814989819] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:22,238 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:22,238 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:22,238 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454733570]
[2023-12-25 18:09:22,238 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:22,239 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:22,239 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:22,240 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:22,240 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:22,240 INFO  L87              Difference]: Start difference. First operand 5936 states and 9854 transitions. Second operand  has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 5 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:25,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:25,378 INFO  L93              Difference]: Finished difference Result 15939 states and 26510 transitions.
[2023-12-25 18:09:25,378 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:25,378 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 5 states have internal predecessors, (656), 0 states have call successors, (0), 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 656
[2023-12-25 18:09:25,379 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:25,391 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:25,392 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:25,399 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:25,399 INFO  L413           NwaCegarLoop]: 7573 mSDtfsCounter, 33860 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3929 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33860 SdHoareTripleChecker+Valid, 24019 SdHoareTripleChecker+Invalid, 4017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:25,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33860 Valid, 24019 Invalid, 4017 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3929 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-12-25 18:09:25,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:25,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5941.
[2023-12-25 18:09:25,477 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5941 states, 5940 states have (on average 1.66010101010101) internal successors, (9861), 5940 states have internal predecessors, (9861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:25,484 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5941 states to 5941 states and 9861 transitions.
[2023-12-25 18:09:25,485 INFO  L78                 Accepts]: Start accepts. Automaton has 5941 states and 9861 transitions. Word has length 656
[2023-12-25 18:09:25,485 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:25,485 INFO  L495      AbstractCegarLoop]: Abstraction has 5941 states and 9861 transitions.
[2023-12-25 18:09:25,485 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 5 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:25,486 INFO  L276                IsEmpty]: Start isEmpty. Operand 5941 states and 9861 transitions.
[2023-12-25 18:09:25,490 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 658
[2023-12-25 18:09:25,490 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:25,490 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:25,490 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2023-12-25 18:09:25,490 INFO  L420      AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:25,491 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:25,491 INFO  L85        PathProgramCache]: Analyzing trace with hash -1177158192, now seen corresponding path program 1 times
[2023-12-25 18:09:25,491 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:25,491 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766994080]
[2023-12-25 18:09:25,491 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:25,491 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:25,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:26,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:26,609 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:26,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766994080]
[2023-12-25 18:09:26,609 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766994080] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:26,609 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:26,609 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:09:26,609 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394657315]
[2023-12-25 18:09:26,609 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:26,610 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:09:26,610 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:26,610 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:09:26,610 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:09:26,610 INFO  L87              Difference]: Start difference. First operand 5941 states and 9861 transitions. Second operand  has 5 states, 5 states have (on average 131.4) internal successors, (657), 4 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:30,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:30,015 INFO  L93              Difference]: Finished difference Result 15763 states and 26246 transitions.
[2023-12-25 18:09:30,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:30,016 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 131.4) internal successors, (657), 4 states have internal predecessors, (657), 0 states have call successors, (0), 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 657
[2023-12-25 18:09:30,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:30,024 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:30,025 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:30,029 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:30,029 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25663 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25663 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:30,033 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25663 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 18:09:30,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:30,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5942.
[2023-12-25 18:09:30,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5942 states, 5941 states have (on average 1.6599899006901195) internal successors, (9862), 5941 states have internal predecessors, (9862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:30,094 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 9862 transitions.
[2023-12-25 18:09:30,094 INFO  L78                 Accepts]: Start accepts. Automaton has 5942 states and 9862 transitions. Word has length 657
[2023-12-25 18:09:30,094 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:30,094 INFO  L495      AbstractCegarLoop]: Abstraction has 5942 states and 9862 transitions.
[2023-12-25 18:09:30,094 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 131.4) internal successors, (657), 4 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:30,094 INFO  L276                IsEmpty]: Start isEmpty. Operand 5942 states and 9862 transitions.
[2023-12-25 18:09:30,098 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 658
[2023-12-25 18:09:30,098 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:30,098 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:30,098 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2023-12-25 18:09:30,099 INFO  L420      AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:30,100 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:30,100 INFO  L85        PathProgramCache]: Analyzing trace with hash 2025173902, now seen corresponding path program 1 times
[2023-12-25 18:09:30,100 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:30,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236615526]
[2023-12-25 18:09:30,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:30,100 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:30,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:30,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:30,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:30,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236615526]
[2023-12-25 18:09:30,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236615526] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:30,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:30,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:30,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770680448]
[2023-12-25 18:09:30,894 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:30,895 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:30,895 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:30,897 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:30,897 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:30,897 INFO  L87              Difference]: Start difference. First operand 5942 states and 9862 transitions. Second operand  has 6 states, 6 states have (on average 109.5) internal successors, (657), 5 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:33,032 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:33,032 INFO  L93              Difference]: Finished difference Result 15939 states and 26508 transitions.
[2023-12-25 18:09:33,032 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:33,032 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 109.5) internal successors, (657), 5 states have internal predecessors, (657), 0 states have call successors, (0), 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 657
[2023-12-25 18:09:33,033 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:33,044 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:33,044 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:33,050 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:33,050 INFO  L413           NwaCegarLoop]: 7575 mSDtfsCounter, 33844 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3927 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33844 SdHoareTripleChecker+Valid, 24021 SdHoareTripleChecker+Invalid, 4015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:33,051 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33844 Valid, 24021 Invalid, 4015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3927 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-25 18:09:33,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:33,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5947.
[2023-12-25 18:09:33,117 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5947 states, 5946 states have (on average 1.6597712748065927) internal successors, (9869), 5946 states have internal predecessors, (9869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:33,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 9869 transitions.
[2023-12-25 18:09:33,123 INFO  L78                 Accepts]: Start accepts. Automaton has 5947 states and 9869 transitions. Word has length 657
[2023-12-25 18:09:33,123 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:33,123 INFO  L495      AbstractCegarLoop]: Abstraction has 5947 states and 9869 transitions.
[2023-12-25 18:09:33,124 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 109.5) internal successors, (657), 5 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:33,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 5947 states and 9869 transitions.
[2023-12-25 18:09:33,127 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 659
[2023-12-25 18:09:33,127 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:33,127 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:33,127 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2023-12-25 18:09:33,127 INFO  L420      AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:33,127 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:33,128 INFO  L85        PathProgramCache]: Analyzing trace with hash -1005437630, now seen corresponding path program 1 times
[2023-12-25 18:09:33,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:33,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934758137]
[2023-12-25 18:09:33,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:33,128 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:33,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:34,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:34,162 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:34,162 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934758137]
[2023-12-25 18:09:34,162 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934758137] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:34,162 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:34,162 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:09:34,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626563726]
[2023-12-25 18:09:34,163 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:34,163 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:09:34,163 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:34,164 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:09:34,164 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:09:34,164 INFO  L87              Difference]: Start difference. First operand 5947 states and 9869 transitions. Second operand  has 5 states, 5 states have (on average 131.6) internal successors, (658), 4 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:37,887 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:37,887 INFO  L93              Difference]: Finished difference Result 15763 states and 26244 transitions.
[2023-12-25 18:09:37,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:37,887 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 131.6) internal successors, (658), 4 states have internal predecessors, (658), 0 states have call successors, (0), 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 658
[2023-12-25 18:09:37,888 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:37,898 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:37,898 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:37,904 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:37,904 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25654 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25654 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:37,905 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25654 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-12-25 18:09:37,911 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:37,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5948.
[2023-12-25 18:09:37,966 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5948 states, 5947 states have (on average 1.6596603329409787) internal successors, (9870), 5947 states have internal predecessors, (9870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:37,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 9870 transitions.
[2023-12-25 18:09:37,971 INFO  L78                 Accepts]: Start accepts. Automaton has 5948 states and 9870 transitions. Word has length 658
[2023-12-25 18:09:37,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:37,971 INFO  L495      AbstractCegarLoop]: Abstraction has 5948 states and 9870 transitions.
[2023-12-25 18:09:37,972 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 131.6) internal successors, (658), 4 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:37,972 INFO  L276                IsEmpty]: Start isEmpty. Operand 5948 states and 9870 transitions.
[2023-12-25 18:09:37,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 659
[2023-12-25 18:09:37,975 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:37,975 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:37,975 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2023-12-25 18:09:37,975 INFO  L420      AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:37,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:37,976 INFO  L85        PathProgramCache]: Analyzing trace with hash -1338080768, now seen corresponding path program 1 times
[2023-12-25 18:09:37,976 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:37,976 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012998324]
[2023-12-25 18:09:37,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:37,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:38,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:38,888 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:38,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:38,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012998324]
[2023-12-25 18:09:38,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012998324] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:38,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:38,889 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:38,889 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007236965]
[2023-12-25 18:09:38,889 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:38,890 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:38,890 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:38,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:38,890 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:38,890 INFO  L87              Difference]: Start difference. First operand 5948 states and 9870 transitions. Second operand  has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:42,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:42,142 INFO  L93              Difference]: Finished difference Result 15939 states and 26506 transitions.
[2023-12-25 18:09:42,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:42,142 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 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 658
[2023-12-25 18:09:42,143 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:42,152 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:42,152 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:42,157 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:42,157 INFO  L413           NwaCegarLoop]: 7577 mSDtfsCounter, 25736 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5778 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25736 SdHoareTripleChecker+Valid, 30847 SdHoareTripleChecker+Invalid, 5866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:42,157 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25736 Valid, 30847 Invalid, 5866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5778 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2023-12-25 18:09:42,164 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:42,211 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5953.
[2023-12-25 18:09:42,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5953 states, 5952 states have (on average 1.6594422043010753) internal successors, (9877), 5952 states have internal predecessors, (9877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:42,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 9877 transitions.
[2023-12-25 18:09:42,219 INFO  L78                 Accepts]: Start accepts. Automaton has 5953 states and 9877 transitions. Word has length 658
[2023-12-25 18:09:42,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:42,220 INFO  L495      AbstractCegarLoop]: Abstraction has 5953 states and 9877 transitions.
[2023-12-25 18:09:42,220 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:42,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 5953 states and 9877 transitions.
[2023-12-25 18:09:42,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 660
[2023-12-25 18:09:42,224 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:42,224 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:42,224 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2023-12-25 18:09:42,224 INFO  L420      AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:42,224 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:42,224 INFO  L85        PathProgramCache]: Analyzing trace with hash 1235353412, now seen corresponding path program 1 times
[2023-12-25 18:09:42,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:42,224 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971308244]
[2023-12-25 18:09:42,225 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:42,225 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:42,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:43,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:43,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:43,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971308244]
[2023-12-25 18:09:43,324 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971308244] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:43,324 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:43,324 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:09:43,324 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986581896]
[2023-12-25 18:09:43,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:43,324 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:09:43,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:43,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:09:43,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:09:43,325 INFO  L87              Difference]: Start difference. First operand 5953 states and 9877 transitions. Second operand  has 5 states, 5 states have (on average 131.8) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:47,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:47,172 INFO  L93              Difference]: Finished difference Result 15763 states and 26242 transitions.
[2023-12-25 18:09:47,172 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:47,173 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 131.8) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 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 659
[2023-12-25 18:09:47,173 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:47,182 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:47,182 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:47,187 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:47,187 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25645 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25645 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:47,187 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25645 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2023-12-25 18:09:47,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:47,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5954.
[2023-12-25 18:09:47,255 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5954 states, 5953 states have (on average 1.6593314295313288) internal successors, (9878), 5953 states have internal predecessors, (9878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:47,259 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5954 states to 5954 states and 9878 transitions.
[2023-12-25 18:09:47,259 INFO  L78                 Accepts]: Start accepts. Automaton has 5954 states and 9878 transitions. Word has length 659
[2023-12-25 18:09:47,260 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:47,260 INFO  L495      AbstractCegarLoop]: Abstraction has 5954 states and 9878 transitions.
[2023-12-25 18:09:47,260 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 131.8) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:47,261 INFO  L276                IsEmpty]: Start isEmpty. Operand 5954 states and 9878 transitions.
[2023-12-25 18:09:47,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 660
[2023-12-25 18:09:47,264 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:47,264 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:47,264 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2023-12-25 18:09:47,264 INFO  L420      AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:47,264 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:47,264 INFO  L85        PathProgramCache]: Analyzing trace with hash 1706709762, now seen corresponding path program 1 times
[2023-12-25 18:09:47,264 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:47,264 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102105364]
[2023-12-25 18:09:47,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:47,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:47,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:48,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:48,079 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:48,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102105364]
[2023-12-25 18:09:48,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102105364] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:48,079 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:48,079 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:48,079 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509923973]
[2023-12-25 18:09:48,079 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:48,080 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:48,080 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:48,080 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:48,080 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:48,080 INFO  L87              Difference]: Start difference. First operand 5954 states and 9878 transitions. Second operand  has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:51,692 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:51,692 INFO  L93              Difference]: Finished difference Result 15939 states and 26504 transitions.
[2023-12-25 18:09:51,692 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:51,692 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 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 659
[2023-12-25 18:09:51,693 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:51,705 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:51,705 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:51,712 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:51,719 INFO  L413           NwaCegarLoop]: 7579 mSDtfsCounter, 25727 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5776 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25727 SdHoareTripleChecker+Valid, 30849 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:51,719 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25727 Valid, 30849 Invalid, 5864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5776 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-25 18:09:51,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:51,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5959.
[2023-12-25 18:09:51,781 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5959 states, 5958 states have (on average 1.6591137965760323) internal successors, (9885), 5958 states have internal predecessors, (9885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:51,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 9885 transitions.
[2023-12-25 18:09:51,786 INFO  L78                 Accepts]: Start accepts. Automaton has 5959 states and 9885 transitions. Word has length 659
[2023-12-25 18:09:51,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:51,787 INFO  L495      AbstractCegarLoop]: Abstraction has 5959 states and 9885 transitions.
[2023-12-25 18:09:51,787 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 109.83333333333333) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:51,787 INFO  L276                IsEmpty]: Start isEmpty. Operand 5959 states and 9885 transitions.
[2023-12-25 18:09:51,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 661
[2023-12-25 18:09:51,790 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:51,790 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:51,790 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2023-12-25 18:09:51,790 INFO  L420      AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:51,791 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:51,791 INFO  L85        PathProgramCache]: Analyzing trace with hash 86002358, now seen corresponding path program 1 times
[2023-12-25 18:09:51,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:51,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629804481]
[2023-12-25 18:09:51,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:51,791 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:52,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:52,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:52,885 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:52,885 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629804481]
[2023-12-25 18:09:52,885 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629804481] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:52,885 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:52,885 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:09:52,885 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137467594]
[2023-12-25 18:09:52,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:52,886 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:09:52,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:52,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:09:52,886 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:09:52,887 INFO  L87              Difference]: Start difference. First operand 5959 states and 9885 transitions. Second operand  has 5 states, 5 states have (on average 132.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:56,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:56,246 INFO  L93              Difference]: Finished difference Result 15763 states and 26240 transitions.
[2023-12-25 18:09:56,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:09:56,247 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 132.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 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 660
[2023-12-25 18:09:56,247 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:56,258 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:09:56,258 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:09:56,263 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:09:56,265 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25636 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25636 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:56,265 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25636 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 18:09:56,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:09:56,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5960.
[2023-12-25 18:09:56,425 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5960 states, 5959 states have (on average 1.6590031884544387) internal successors, (9886), 5959 states have internal predecessors, (9886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:56,430 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 9886 transitions.
[2023-12-25 18:09:56,430 INFO  L78                 Accepts]: Start accepts. Automaton has 5960 states and 9886 transitions. Word has length 660
[2023-12-25 18:09:56,430 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:56,430 INFO  L495      AbstractCegarLoop]: Abstraction has 5960 states and 9886 transitions.
[2023-12-25 18:09:56,430 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 132.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:56,431 INFO  L276                IsEmpty]: Start isEmpty. Operand 5960 states and 9886 transitions.
[2023-12-25 18:09:56,434 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 661
[2023-12-25 18:09:56,434 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:56,434 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:56,434 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2023-12-25 18:09:56,434 INFO  L420      AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:56,435 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:56,435 INFO  L85        PathProgramCache]: Analyzing trace with hash -1887163020, now seen corresponding path program 1 times
[2023-12-25 18:09:56,435 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:56,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569413833]
[2023-12-25 18:09:56,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:56,435 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:09:56,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:09:57,287 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:09:57,287 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:09:57,288 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569413833]
[2023-12-25 18:09:57,288 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569413833] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:09:57,288 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:09:57,288 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:09:57,288 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589260451]
[2023-12-25 18:09:57,288 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:09:57,288 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:09:57,288 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:09:57,289 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:09:57,289 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:09:57,289 INFO  L87              Difference]: Start difference. First operand 5960 states and 9886 transitions. Second operand  has 6 states, 6 states have (on average 110.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:59,677 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:09:59,677 INFO  L93              Difference]: Finished difference Result 15939 states and 26502 transitions.
[2023-12-25 18:09:59,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:09:59,678 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 110.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 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 660
[2023-12-25 18:09:59,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:09:59,688 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:09:59,688 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:09:59,696 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:09:59,696 INFO  L413           NwaCegarLoop]: 7581 mSDtfsCounter, 33796 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3921 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33796 SdHoareTripleChecker+Valid, 24027 SdHoareTripleChecker+Invalid, 4009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:09:59,696 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33796 Valid, 24027 Invalid, 4009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3921 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-12-25 18:09:59,703 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:09:59,752 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5965.
[2023-12-25 18:09:59,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5965 states, 5964 states have (on average 1.65878604963112) internal successors, (9893), 5964 states have internal predecessors, (9893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:59,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 9893 transitions.
[2023-12-25 18:09:59,762 INFO  L78                 Accepts]: Start accepts. Automaton has 5965 states and 9893 transitions. Word has length 660
[2023-12-25 18:09:59,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:09:59,762 INFO  L495      AbstractCegarLoop]: Abstraction has 5965 states and 9893 transitions.
[2023-12-25 18:09:59,763 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 110.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:09:59,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 5965 states and 9893 transitions.
[2023-12-25 18:09:59,766 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 662
[2023-12-25 18:09:59,766 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:09:59,766 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:09:59,766 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2023-12-25 18:09:59,766 INFO  L420      AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:09:59,766 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:09:59,766 INFO  L85        PathProgramCache]: Analyzing trace with hash -515902280, now seen corresponding path program 1 times
[2023-12-25 18:09:59,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:09:59,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179479991]
[2023-12-25 18:09:59,767 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:09:59,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:00,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:00,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:00,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:00,840 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179479991]
[2023-12-25 18:10:00,840 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179479991] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:00,840 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:00,840 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:00,840 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369313195]
[2023-12-25 18:10:00,840 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:00,841 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:00,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:00,841 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:00,841 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:00,842 INFO  L87              Difference]: Start difference. First operand 5965 states and 9893 transitions. Second operand  has 5 states, 5 states have (on average 132.2) internal successors, (661), 4 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:04,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:04,566 INFO  L93              Difference]: Finished difference Result 15763 states and 26238 transitions.
[2023-12-25 18:10:04,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:10:04,566 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 132.2) internal successors, (661), 4 states have internal predecessors, (661), 0 states have call successors, (0), 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 661
[2023-12-25 18:10:04,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:04,577 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:10:04,577 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:10:04,584 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:10:04,584 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25627 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25627 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:04,585 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25627 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-12-25 18:10:04,593 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:10:04,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5966.
[2023-12-25 18:10:04,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5966 states, 5965 states have (on average 1.6586756077116513) internal successors, (9894), 5965 states have internal predecessors, (9894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:04,660 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5966 states to 5966 states and 9894 transitions.
[2023-12-25 18:10:04,660 INFO  L78                 Accepts]: Start accepts. Automaton has 5966 states and 9894 transitions. Word has length 661
[2023-12-25 18:10:04,660 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:04,660 INFO  L495      AbstractCegarLoop]: Abstraction has 5966 states and 9894 transitions.
[2023-12-25 18:10:04,661 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 132.2) internal successors, (661), 4 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:04,661 INFO  L276                IsEmpty]: Start isEmpty. Operand 5966 states and 9894 transitions.
[2023-12-25 18:10:04,664 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 662
[2023-12-25 18:10:04,664 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:04,664 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:04,664 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2023-12-25 18:10:04,664 INFO  L420      AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:04,665 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:04,665 INFO  L85        PathProgramCache]: Analyzing trace with hash 873391734, now seen corresponding path program 1 times
[2023-12-25 18:10:04,665 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:04,665 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118116066]
[2023-12-25 18:10:04,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:04,665 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:05,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:05,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:05,552 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:05,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118116066]
[2023-12-25 18:10:05,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118116066] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:05,552 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:05,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:10:05,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974447072]
[2023-12-25 18:10:05,552 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:05,553 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:10:05,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:05,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:10:05,553 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:10:05,553 INFO  L87              Difference]: Start difference. First operand 5966 states and 9894 transitions. Second operand  has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:08,113 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:08,113 INFO  L93              Difference]: Finished difference Result 15939 states and 26500 transitions.
[2023-12-25 18:10:08,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:10:08,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 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 661
[2023-12-25 18:10:08,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:08,125 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:10:08,125 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:10:08,131 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:10:08,131 INFO  L413           NwaCegarLoop]: 7583 mSDtfsCounter, 33780 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3919 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33780 SdHoareTripleChecker+Valid, 24029 SdHoareTripleChecker+Invalid, 4007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:08,131 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33780 Valid, 24029 Invalid, 4007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3919 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-25 18:10:08,138 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:10:08,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5971.
[2023-12-25 18:10:08,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5971 states, 5970 states have (on average 1.6584589614740368) internal successors, (9901), 5970 states have internal predecessors, (9901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:08,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 9901 transitions.
[2023-12-25 18:10:08,202 INFO  L78                 Accepts]: Start accepts. Automaton has 5971 states and 9901 transitions. Word has length 661
[2023-12-25 18:10:08,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:08,203 INFO  L495      AbstractCegarLoop]: Abstraction has 5971 states and 9901 transitions.
[2023-12-25 18:10:08,203 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:08,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 5971 states and 9901 transitions.
[2023-12-25 18:10:08,206 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 663
[2023-12-25 18:10:08,206 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:08,207 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:08,207 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2023-12-25 18:10:08,207 INFO  L420      AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:08,207 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:08,207 INFO  L85        PathProgramCache]: Analyzing trace with hash -1709847510, now seen corresponding path program 1 times
[2023-12-25 18:10:08,207 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:08,207 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012623030]
[2023-12-25 18:10:08,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:08,207 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:08,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:09,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:09,417 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:09,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012623030]
[2023-12-25 18:10:09,417 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012623030] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:09,417 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:09,417 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:09,417 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759326055]
[2023-12-25 18:10:09,417 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:09,418 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:09,418 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:09,418 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:09,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:09,418 INFO  L87              Difference]: Start difference. First operand 5971 states and 9901 transitions. Second operand  has 5 states, 5 states have (on average 132.4) internal successors, (662), 4 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:13,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:13,206 INFO  L93              Difference]: Finished difference Result 15763 states and 26236 transitions.
[2023-12-25 18:10:13,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:10:13,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 132.4) internal successors, (662), 4 states have internal predecessors, (662), 0 states have call successors, (0), 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 662
[2023-12-25 18:10:13,207 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:13,218 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:10:13,219 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:10:13,225 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:10:13,226 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25618 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25618 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:13,226 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25618 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-25 18:10:13,235 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:10:13,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5972.
[2023-12-25 18:10:13,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5972 states, 5971 states have (on average 1.658348685312343) internal successors, (9902), 5971 states have internal predecessors, (9902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:13,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 9902 transitions.
[2023-12-25 18:10:13,307 INFO  L78                 Accepts]: Start accepts. Automaton has 5972 states and 9902 transitions. Word has length 662
[2023-12-25 18:10:13,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:13,307 INFO  L495      AbstractCegarLoop]: Abstraction has 5972 states and 9902 transitions.
[2023-12-25 18:10:13,307 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 132.4) internal successors, (662), 4 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:13,307 INFO  L276                IsEmpty]: Start isEmpty. Operand 5972 states and 9902 transitions.
[2023-12-25 18:10:13,311 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 663
[2023-12-25 18:10:13,311 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:13,311 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:13,311 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2023-12-25 18:10:13,311 INFO  L420      AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:13,312 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:13,312 INFO  L85        PathProgramCache]: Analyzing trace with hash 187649256, now seen corresponding path program 1 times
[2023-12-25 18:10:13,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:13,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687826936]
[2023-12-25 18:10:13,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:13,312 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:13,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:14,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:14,235 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:14,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687826936]
[2023-12-25 18:10:14,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687826936] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:14,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:14,236 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:10:14,236 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850020840]
[2023-12-25 18:10:14,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:14,236 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:10:14,236 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:14,237 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:10:14,237 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:10:14,237 INFO  L87              Difference]: Start difference. First operand 5972 states and 9902 transitions. Second operand  has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:18,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:18,699 INFO  L93              Difference]: Finished difference Result 15939 states and 26498 transitions.
[2023-12-25 18:10:18,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:10:18,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 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 662
[2023-12-25 18:10:18,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:18,711 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:10:18,712 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:10:18,719 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:10:18,719 INFO  L413           NwaCegarLoop]: 7585 mSDtfsCounter, 25700 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5770 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25700 SdHoareTripleChecker+Valid, 30855 SdHoareTripleChecker+Invalid, 5858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:18,719 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25700 Valid, 30855 Invalid, 5858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5770 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-25 18:10:18,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:10:18,785 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5977.
[2023-12-25 18:10:18,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5977 states, 5976 states have (on average 1.658132530120482) internal successors, (9909), 5976 states have internal predecessors, (9909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:18,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5977 states to 5977 states and 9909 transitions.
[2023-12-25 18:10:18,799 INFO  L78                 Accepts]: Start accepts. Automaton has 5977 states and 9909 transitions. Word has length 662
[2023-12-25 18:10:18,799 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:18,799 INFO  L495      AbstractCegarLoop]: Abstraction has 5977 states and 9909 transitions.
[2023-12-25 18:10:18,799 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:18,799 INFO  L276                IsEmpty]: Start isEmpty. Operand 5977 states and 9909 transitions.
[2023-12-25 18:10:18,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 664
[2023-12-25 18:10:18,803 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:18,803 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:18,803 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2023-12-25 18:10:18,803 INFO  L420      AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:18,804 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:18,804 INFO  L85        PathProgramCache]: Analyzing trace with hash -2062295508, now seen corresponding path program 1 times
[2023-12-25 18:10:18,804 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:18,804 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632200714]
[2023-12-25 18:10:18,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:18,804 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:19,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:19,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:19,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:19,987 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632200714]
[2023-12-25 18:10:19,987 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632200714] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:19,987 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:19,987 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:19,987 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254896629]
[2023-12-25 18:10:19,987 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:19,988 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:19,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:19,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:19,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:19,989 INFO  L87              Difference]: Start difference. First operand 5977 states and 9909 transitions. Second operand  has 5 states, 5 states have (on average 132.6) internal successors, (663), 4 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:24,410 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:24,410 INFO  L93              Difference]: Finished difference Result 15763 states and 26234 transitions.
[2023-12-25 18:10:24,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:10:24,411 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 132.6) internal successors, (663), 4 states have internal predecessors, (663), 0 states have call successors, (0), 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 663
[2023-12-25 18:10:24,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:24,426 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:10:24,426 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:10:24,431 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:10:24,432 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25609 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25609 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:24,432 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25609 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-25 18:10:24,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:10:24,494 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5978.
[2023-12-25 18:10:24,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5978 states, 5977 states have (on average 1.6580224192738833) internal successors, (9910), 5977 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:24,505 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 9910 transitions.
[2023-12-25 18:10:24,505 INFO  L78                 Accepts]: Start accepts. Automaton has 5978 states and 9910 transitions. Word has length 663
[2023-12-25 18:10:24,506 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:24,506 INFO  L495      AbstractCegarLoop]: Abstraction has 5978 states and 9910 transitions.
[2023-12-25 18:10:24,506 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 132.6) internal successors, (663), 4 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:24,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 5978 states and 9910 transitions.
[2023-12-25 18:10:24,509 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 664
[2023-12-25 18:10:24,509 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:24,510 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:24,510 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2023-12-25 18:10:24,510 INFO  L420      AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:24,510 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:24,510 INFO  L85        PathProgramCache]: Analyzing trace with hash 1175940586, now seen corresponding path program 1 times
[2023-12-25 18:10:24,510 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:24,510 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444650759]
[2023-12-25 18:10:24,511 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:24,511 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:24,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:25,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:25,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:25,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444650759]
[2023-12-25 18:10:25,480 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444650759] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:25,480 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:25,480 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:10:25,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002411042]
[2023-12-25 18:10:25,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:25,481 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:10:25,481 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:25,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:10:25,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:10:25,481 INFO  L87              Difference]: Start difference. First operand 5978 states and 9910 transitions. Second operand  has 6 states, 6 states have (on average 110.5) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:30,774 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:30,774 INFO  L93              Difference]: Finished difference Result 15939 states and 26496 transitions.
[2023-12-25 18:10:30,775 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:10:30,775 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 110.5) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 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 663
[2023-12-25 18:10:30,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:30,792 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:10:30,792 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:10:30,801 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:10:30,802 INFO  L413           NwaCegarLoop]: 7587 mSDtfsCounter, 25691 mSDsluCounter, 23270 mSDsCounter, 0 mSdLazyCounter, 5768 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25691 SdHoareTripleChecker+Valid, 30857 SdHoareTripleChecker+Invalid, 5856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:30,802 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25691 Valid, 30857 Invalid, 5856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5768 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-25 18:10:30,814 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:10:30,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5983.
[2023-12-25 18:10:30,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5983 states, 5982 states have (on average 1.6578067535941157) internal successors, (9917), 5982 states have internal predecessors, (9917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:30,915 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5983 states to 5983 states and 9917 transitions.
[2023-12-25 18:10:30,915 INFO  L78                 Accepts]: Start accepts. Automaton has 5983 states and 9917 transitions. Word has length 663
[2023-12-25 18:10:30,916 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:30,916 INFO  L495      AbstractCegarLoop]: Abstraction has 5983 states and 9917 transitions.
[2023-12-25 18:10:30,916 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 110.5) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:30,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 5983 states and 9917 transitions.
[2023-12-25 18:10:30,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 665
[2023-12-25 18:10:30,921 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:30,921 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:30,921 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2023-12-25 18:10:30,921 INFO  L420      AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:30,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:30,922 INFO  L85        PathProgramCache]: Analyzing trace with hash 142000542, now seen corresponding path program 1 times
[2023-12-25 18:10:30,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:30,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147428850]
[2023-12-25 18:10:30,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:30,922 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:31,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:32,665 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:32,665 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:32,666 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147428850]
[2023-12-25 18:10:32,666 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147428850] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:32,666 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:32,666 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:32,666 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120805183]
[2023-12-25 18:10:32,666 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:32,667 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:32,667 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:32,668 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:32,668 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:32,668 INFO  L87              Difference]: Start difference. First operand 5983 states and 9917 transitions. Second operand  has 5 states, 5 states have (on average 132.8) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:37,097 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:37,097 INFO  L93              Difference]: Finished difference Result 15763 states and 26232 transitions.
[2023-12-25 18:10:37,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:10:37,098 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 132.8) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 664
[2023-12-25 18:10:37,098 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:37,110 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:10:37,110 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:10:37,118 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:10:37,118 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25600 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25600 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:37,118 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25600 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-25 18:10:37,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:10:37,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5984.
[2023-12-25 18:10:37,189 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5984 states, 5983 states have (on average 1.6576968076215945) internal successors, (9918), 5983 states have internal predecessors, (9918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:37,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 9918 transitions.
[2023-12-25 18:10:37,196 INFO  L78                 Accepts]: Start accepts. Automaton has 5984 states and 9918 transitions. Word has length 664
[2023-12-25 18:10:37,196 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:37,196 INFO  L495      AbstractCegarLoop]: Abstraction has 5984 states and 9918 transitions.
[2023-12-25 18:10:37,197 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 132.8) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:37,197 INFO  L276                IsEmpty]: Start isEmpty. Operand 5984 states and 9918 transitions.
[2023-12-25 18:10:37,200 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 665
[2023-12-25 18:10:37,200 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:37,200 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:37,200 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2023-12-25 18:10:37,200 INFO  L420      AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:37,201 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:37,201 INFO  L85        PathProgramCache]: Analyzing trace with hash 113500252, now seen corresponding path program 1 times
[2023-12-25 18:10:37,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:37,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398976790]
[2023-12-25 18:10:37,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:37,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:37,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:38,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:38,211 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:38,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398976790]
[2023-12-25 18:10:38,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398976790] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:38,212 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:38,212 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:10:38,212 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815519234]
[2023-12-25 18:10:38,212 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:38,212 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:10:38,212 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:38,213 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:10:38,213 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:10:38,213 INFO  L87              Difference]: Start difference. First operand 5984 states and 9918 transitions. Second operand  has 6 states, 6 states have (on average 110.66666666666667) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:41,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:41,179 INFO  L93              Difference]: Finished difference Result 15939 states and 26494 transitions.
[2023-12-25 18:10:41,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:10:41,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 110.66666666666667) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 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 664
[2023-12-25 18:10:41,180 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:41,192 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:10:41,193 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:10:41,199 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:10:41,199 INFO  L413           NwaCegarLoop]: 7589 mSDtfsCounter, 33732 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3913 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33732 SdHoareTripleChecker+Valid, 24035 SdHoareTripleChecker+Invalid, 4001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:41,200 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33732 Valid, 24035 Invalid, 4001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3913 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-25 18:10:41,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:10:41,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5989.
[2023-12-25 18:10:41,279 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5989 states, 5988 states have (on average 1.6574816299265196) internal successors, (9925), 5988 states have internal predecessors, (9925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:41,286 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 9925 transitions.
[2023-12-25 18:10:41,286 INFO  L78                 Accepts]: Start accepts. Automaton has 5989 states and 9925 transitions. Word has length 664
[2023-12-25 18:10:41,287 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:41,287 INFO  L495      AbstractCegarLoop]: Abstraction has 5989 states and 9925 transitions.
[2023-12-25 18:10:41,287 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 110.66666666666667) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:41,287 INFO  L276                IsEmpty]: Start isEmpty. Operand 5989 states and 9925 transitions.
[2023-12-25 18:10:41,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 666
[2023-12-25 18:10:41,291 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:41,291 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:41,291 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2023-12-25 18:10:41,291 INFO  L420      AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:41,292 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:41,292 INFO  L85        PathProgramCache]: Analyzing trace with hash 1367456672, now seen corresponding path program 1 times
[2023-12-25 18:10:41,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:41,292 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537337137]
[2023-12-25 18:10:41,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:41,292 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:41,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:42,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:42,487 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:42,487 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537337137]
[2023-12-25 18:10:42,487 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537337137] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:42,487 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:42,487 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:42,488 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569673803]
[2023-12-25 18:10:42,488 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:42,488 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:42,488 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:42,489 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:42,489 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:42,489 INFO  L87              Difference]: Start difference. First operand 5989 states and 9925 transitions. Second operand  has 5 states, 5 states have (on average 133.0) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:46,758 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:46,759 INFO  L93              Difference]: Finished difference Result 15763 states and 26230 transitions.
[2023-12-25 18:10:46,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:10:46,759 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 133.0) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 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 665
[2023-12-25 18:10:46,760 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:46,770 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:10:46,771 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:10:46,778 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:10:46,778 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25591 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25591 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:46,778 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25591 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-25 18:10:46,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:10:46,846 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5990.
[2023-12-25 18:10:46,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5990 states, 5989 states have (on average 1.6573718483887125) internal successors, (9926), 5989 states have internal predecessors, (9926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:46,856 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 9926 transitions.
[2023-12-25 18:10:46,856 INFO  L78                 Accepts]: Start accepts. Automaton has 5990 states and 9926 transitions. Word has length 665
[2023-12-25 18:10:46,857 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:46,857 INFO  L495      AbstractCegarLoop]: Abstraction has 5990 states and 9926 transitions.
[2023-12-25 18:10:46,857 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 133.0) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:46,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 5990 states and 9926 transitions.
[2023-12-25 18:10:46,860 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 666
[2023-12-25 18:10:46,860 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:46,861 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:46,861 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2023-12-25 18:10:46,861 INFO  L420      AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:46,861 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:46,861 INFO  L85        PathProgramCache]: Analyzing trace with hash 372762974, now seen corresponding path program 1 times
[2023-12-25 18:10:46,861 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:46,861 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022890]
[2023-12-25 18:10:46,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:46,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:47,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:47,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:47,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:47,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022890]
[2023-12-25 18:10:47,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022890] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:47,842 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:47,842 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 18:10:47,842 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065369931]
[2023-12-25 18:10:47,842 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:47,842 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 18:10:47,842 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:47,843 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 18:10:47,843 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 18:10:47,843 INFO  L87              Difference]: Start difference. First operand 5990 states and 9926 transitions. Second operand  has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:50,781 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:50,781 INFO  L93              Difference]: Finished difference Result 15939 states and 26492 transitions.
[2023-12-25 18:10:50,782 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:10:50,782 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 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 665
[2023-12-25 18:10:50,783 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:50,794 INFO  L225             Difference]: With dead ends: 15939
[2023-12-25 18:10:50,794 INFO  L226             Difference]: Without dead ends: 10763
[2023-12-25 18:10:50,801 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-12-25 18:10:50,802 INFO  L413           NwaCegarLoop]: 7591 mSDtfsCounter, 33716 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 3911 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33716 SdHoareTripleChecker+Valid, 24037 SdHoareTripleChecker+Invalid, 3999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:50,802 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33716 Valid, 24037 Invalid, 3999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3911 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-12-25 18:10:50,812 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10763 states.
[2023-12-25 18:10:50,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5995.
[2023-12-25 18:10:50,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5995 states, 5994 states have (on average 1.657157157157157) internal successors, (9933), 5994 states have internal predecessors, (9933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:50,884 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5995 states to 5995 states and 9933 transitions.
[2023-12-25 18:10:50,884 INFO  L78                 Accepts]: Start accepts. Automaton has 5995 states and 9933 transitions. Word has length 665
[2023-12-25 18:10:50,884 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:50,885 INFO  L495      AbstractCegarLoop]: Abstraction has 5995 states and 9933 transitions.
[2023-12-25 18:10:50,885 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:50,885 INFO  L276                IsEmpty]: Start isEmpty. Operand 5995 states and 9933 transitions.
[2023-12-25 18:10:50,888 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 667
[2023-12-25 18:10:50,888 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:50,889 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:50,889 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2023-12-25 18:10:50,889 INFO  L420      AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:50,889 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:50,889 INFO  L85        PathProgramCache]: Analyzing trace with hash -1513673966, now seen corresponding path program 1 times
[2023-12-25 18:10:50,889 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:50,889 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279424538]
[2023-12-25 18:10:50,890 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:50,890 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:51,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:52,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:52,148 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:52,148 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279424538]
[2023-12-25 18:10:52,148 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279424538] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:52,148 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:52,148 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:52,148 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068803153]
[2023-12-25 18:10:52,148 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:52,148 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:52,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:52,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:52,149 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:52,149 INFO  L87              Difference]: Start difference. First operand 5995 states and 9933 transitions. Second operand  has 5 states, 5 states have (on average 133.2) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:56,469 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:56,470 INFO  L93              Difference]: Finished difference Result 15763 states and 26228 transitions.
[2023-12-25 18:10:56,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:10:56,470 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 133.2) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 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 666
[2023-12-25 18:10:56,470 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:56,483 INFO  L225             Difference]: With dead ends: 15763
[2023-12-25 18:10:56,483 INFO  L226             Difference]: Without dead ends: 10587
[2023-12-25 18:10:56,489 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 18:10:56,489 INFO  L413           NwaCegarLoop]: 7085 mSDtfsCounter, 25582 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25582 SdHoareTripleChecker+Valid, 21248 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:56,490 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25582 Valid, 21248 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2023-12-25 18:10:56,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10587 states.
[2023-12-25 18:10:56,562 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 5996.
[2023-12-25 18:10:56,569 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5996 states, 5995 states have (on average 1.6570475396163469) internal successors, (9934), 5995 states have internal predecessors, (9934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:56,575 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5996 states to 5996 states and 9934 transitions.
[2023-12-25 18:10:56,575 INFO  L78                 Accepts]: Start accepts. Automaton has 5996 states and 9934 transitions. Word has length 666
[2023-12-25 18:10:56,575 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:56,575 INFO  L495      AbstractCegarLoop]: Abstraction has 5996 states and 9934 transitions.
[2023-12-25 18:10:56,576 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 133.2) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:56,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 5996 states and 9934 transitions.
[2023-12-25 18:10:56,579 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 667
[2023-12-25 18:10:56,579 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:56,579 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:56,579 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2023-12-25 18:10:56,579 INFO  L420      AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:56,580 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:56,580 INFO  L85        PathProgramCache]: Analyzing trace with hash 902162384, now seen corresponding path program 1 times
[2023-12-25 18:10:56,580 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:56,580 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036552641]
[2023-12-25 18:10:56,580 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:56,580 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:56,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:57,743 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:57,743 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:57,744 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036552641]
[2023-12-25 18:10:57,744 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036552641] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:57,744 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:57,744 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:57,744 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846918197]
[2023-12-25 18:10:57,744 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:57,744 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:10:57,744 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:57,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:10:57,745 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:10:57,745 INFO  L87              Difference]: Start difference. First operand 5996 states and 9934 transitions. Second operand  has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:57,831 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:57,832 INFO  L93              Difference]: Finished difference Result 6000 states and 9938 transitions.
[2023-12-25 18:10:57,832 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:10:57,832 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 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 666
[2023-12-25 18:10:57,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:57,839 INFO  L225             Difference]: With dead ends: 6000
[2023-12-25 18:10:57,839 INFO  L226             Difference]: Without dead ends: 5998
[2023-12-25 18:10:57,841 INFO  L412           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
[2023-12-25 18:10:57,841 INFO  L413           NwaCegarLoop]: 9022 mSDtfsCounter, 1 mSDsluCounter, 18039 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27061 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:57,841 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 27061 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:10:57,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5998 states.
[2023-12-25 18:10:57,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 5998.
[2023-12-25 18:10:57,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5998 states, 5997 states have (on average 1.6568284142071035) internal successors, (9936), 5997 states have internal predecessors, (9936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:57,909 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5998 states to 5998 states and 9936 transitions.
[2023-12-25 18:10:57,910 INFO  L78                 Accepts]: Start accepts. Automaton has 5998 states and 9936 transitions. Word has length 666
[2023-12-25 18:10:57,910 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:57,910 INFO  L495      AbstractCegarLoop]: Abstraction has 5998 states and 9936 transitions.
[2023-12-25 18:10:57,910 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 166.5) internal successors, (666), 4 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:57,910 INFO  L276                IsEmpty]: Start isEmpty. Operand 5998 states and 9936 transitions.
[2023-12-25 18:10:57,914 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 668
[2023-12-25 18:10:57,914 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:57,914 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:57,914 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2023-12-25 18:10:57,914 INFO  L420      AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:57,914 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:57,914 INFO  L85        PathProgramCache]: Analyzing trace with hash -2096008464, now seen corresponding path program 1 times
[2023-12-25 18:10:57,914 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:57,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231091346]
[2023-12-25 18:10:57,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:57,915 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:58,041 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:58,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:58,509 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:58,509 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231091346]
[2023-12-25 18:10:58,509 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231091346] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:58,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:58,510 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:58,510 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197088477]
[2023-12-25 18:10:58,510 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:58,510 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:10:58,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:58,511 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:10:58,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:10:58,511 INFO  L87              Difference]: Start difference. First operand 5998 states and 9936 transitions. Second operand  has 4 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:58,621 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:58,622 INFO  L93              Difference]: Finished difference Result 11179 states and 18576 transitions.
[2023-12-25 18:10:58,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:10:58,622 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 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 667
[2023-12-25 18:10:58,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:58,634 INFO  L225             Difference]: With dead ends: 11179
[2023-12-25 18:10:58,634 INFO  L226             Difference]: Without dead ends: 6001
[2023-12-25 18:10:58,641 INFO  L412           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
[2023-12-25 18:10:58,641 INFO  L413           NwaCegarLoop]: 9022 mSDtfsCounter, 1 mSDsluCounter, 18037 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27059 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:10:58,641 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 27059 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:10:58,649 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6001 states.
[2023-12-25 18:10:58,726 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 6000.
[2023-12-25 18:10:58,734 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6000 states, 5999 states have (on average 1.6566094349058176) internal successors, (9938), 5999 states have internal predecessors, (9938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:58,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6000 states to 6000 states and 9938 transitions.
[2023-12-25 18:10:58,742 INFO  L78                 Accepts]: Start accepts. Automaton has 6000 states and 9938 transitions. Word has length 667
[2023-12-25 18:10:58,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:58,743 INFO  L495      AbstractCegarLoop]: Abstraction has 6000 states and 9938 transitions.
[2023-12-25 18:10:58,743 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:58,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 6000 states and 9938 transitions.
[2023-12-25 18:10:58,747 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 669
[2023-12-25 18:10:58,747 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:58,748 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:10:58,748 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2023-12-25 18:10:58,748 INFO  L420      AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:58,748 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:58,748 INFO  L85        PathProgramCache]: Analyzing trace with hash -762181654, now seen corresponding path program 1 times
[2023-12-25 18:10:58,749 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:58,749 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640096972]
[2023-12-25 18:10:58,749 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:58,749 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:10:58,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:10:59,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:10:59,473 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:10:59,473 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640096972]
[2023-12-25 18:10:59,473 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640096972] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:10:59,473 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:10:59,473 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:10:59,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407903052]
[2023-12-25 18:10:59,474 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:10:59,474 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:10:59,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:10:59,475 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:10:59,475 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 18:10:59,475 INFO  L87              Difference]: Start difference. First operand 6000 states and 9938 transitions. Second operand  has 5 states, 5 states have (on average 133.6) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:59,681 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:10:59,681 INFO  L93              Difference]: Finished difference Result 16467 states and 27394 transitions.
[2023-12-25 18:10:59,681 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 18:10:59,681 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 133.6) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 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 668
[2023-12-25 18:10:59,682 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:10:59,695 INFO  L225             Difference]: With dead ends: 16467
[2023-12-25 18:10:59,695 INFO  L226             Difference]: Without dead ends: 11287
[2023-12-25 18:10:59,702 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 18:10:59,703 INFO  L413           NwaCegarLoop]: 10120 mSDtfsCounter, 35277 mSDsluCounter, 18038 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35277 SdHoareTripleChecker+Valid, 28158 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
[2023-12-25 18:10:59,703 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [35277 Valid, 28158 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:10:59,711 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11287 states.
[2023-12-25 18:10:59,768 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 6116.
[2023-12-25 18:10:59,774 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6116 states, 6115 states have (on average 1.6565821749795584) internal successors, (10130), 6115 states have internal predecessors, (10130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:59,780 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 10130 transitions.
[2023-12-25 18:10:59,780 INFO  L78                 Accepts]: Start accepts. Automaton has 6116 states and 10130 transitions. Word has length 668
[2023-12-25 18:10:59,780 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:10:59,780 INFO  L495      AbstractCegarLoop]: Abstraction has 6116 states and 10130 transitions.
[2023-12-25 18:10:59,780 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 133.6) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:10:59,781 INFO  L276                IsEmpty]: Start isEmpty. Operand 6116 states and 10130 transitions.
[2023-12-25 18:10:59,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4066
[2023-12-25 18:10:59,868 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:10:59,870 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:10:59,870 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2023-12-25 18:10:59,870 INFO  L420      AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:10:59,871 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:10:59,871 INFO  L85        PathProgramCache]: Analyzing trace with hash 1741045683, now seen corresponding path program 1 times
[2023-12-25 18:10:59,871 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:10:59,871 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791119677]
[2023-12-25 18:10:59,872 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:10:59,872 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:00,196 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:00,196 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505857632]
[2023-12-25 18:11:00,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:00,197 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:00,197 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:00,200 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)
[2023-12-25 18:11:00,301 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-25 18:11:04,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:04,994 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19365 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 18:11:05,118 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:05,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:11:05,209 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 18:11:05,209 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:05,209 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791119677]
[2023-12-25 18:11:05,209 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:05,209 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505857632]
[2023-12-25 18:11:05,210 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [505857632] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:11:05,210 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:11:05,210 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:11:05,210 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365423237]
[2023-12-25 18:11:05,210 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:05,214 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:05,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:05,216 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:05,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:05,217 INFO  L87              Difference]: Start difference. First operand 6116 states and 10130 transitions. Second operand  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:05,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:05,330 INFO  L93              Difference]: Finished difference Result 11306 states and 18784 transitions.
[2023-12-25 18:11:05,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:11:05,331 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 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 4065
[2023-12-25 18:11:05,332 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:05,338 INFO  L225             Difference]: With dead ends: 11306
[2023-12-25 18:11:05,339 INFO  L226             Difference]: Without dead ends: 6126
[2023-12-25 18:11:05,343 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4064 GetRequests, 4062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:05,343 INFO  L413           NwaCegarLoop]: 9022 mSDtfsCounter, 12 mSDsluCounter, 18034 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27056 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:05,343 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27056 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:05,349 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6126 states.
[2023-12-25 18:11:05,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6126 to 6118.
[2023-12-25 18:11:05,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6118 states, 6117 states have (on average 1.656367500408697) internal successors, (10132), 6117 states have internal predecessors, (10132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:05,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 10132 transitions.
[2023-12-25 18:11:05,409 INFO  L78                 Accepts]: Start accepts. Automaton has 6118 states and 10132 transitions. Word has length 4065
[2023-12-25 18:11:05,412 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:05,413 INFO  L495      AbstractCegarLoop]: Abstraction has 6118 states and 10132 transitions.
[2023-12-25 18:11:05,414 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:05,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 6118 states and 10132 transitions.
[2023-12-25 18:11:05,503 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4066
[2023-12-25 18:11:05,503 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:05,505 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:11:05,569 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-25 18:11:05,720 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68
[2023-12-25 18:11:05,721 INFO  L420      AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:05,721 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:05,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -2080126847, now seen corresponding path program 1 times
[2023-12-25 18:11:05,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:05,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032582051]
[2023-12-25 18:11:05,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:05,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:06,095 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:06,096 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255482487]
[2023-12-25 18:11:06,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:06,097 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:06,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:06,098 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)
[2023-12-25 18:11:06,161 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-25 18:11:10,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:11,060 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19366 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 18:11:11,190 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:11,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:11:11,332 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 18:11:11,348 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:11,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032582051]
[2023-12-25 18:11:11,348 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:11,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255482487]
[2023-12-25 18:11:11,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [255482487] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:11:11,348 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:11:11,349 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:11:11,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524803837]
[2023-12-25 18:11:11,349 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:11,352 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:11,352 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:11,354 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:11,355 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:11,355 INFO  L87              Difference]: Start difference. First operand 6118 states and 10132 transitions. Second operand  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:11,499 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:11,500 INFO  L93              Difference]: Finished difference Result 11309 states and 18786 transitions.
[2023-12-25 18:11:11,500 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:11:11,501 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 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 4065
[2023-12-25 18:11:11,502 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:11,508 INFO  L225             Difference]: With dead ends: 11309
[2023-12-25 18:11:11,508 INFO  L226             Difference]: Without dead ends: 6127
[2023-12-25 18:11:11,512 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4064 GetRequests, 4062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:11,513 INFO  L413           NwaCegarLoop]: 9022 mSDtfsCounter, 12 mSDsluCounter, 18034 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27056 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:11,513 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27056 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:11:11,518 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6127 states.
[2023-12-25 18:11:11,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 6119.
[2023-12-25 18:11:11,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6119 states, 6118 states have (on average 1.6562602157567832) internal successors, (10133), 6118 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:11,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6119 states to 6119 states and 10133 transitions.
[2023-12-25 18:11:11,580 INFO  L78                 Accepts]: Start accepts. Automaton has 6119 states and 10133 transitions. Word has length 4065
[2023-12-25 18:11:11,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:11,608 INFO  L495      AbstractCegarLoop]: Abstraction has 6119 states and 10133 transitions.
[2023-12-25 18:11:11,609 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:11,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 6119 states and 10133 transitions.
[2023-12-25 18:11:11,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4066
[2023-12-25 18:11:11,733 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:11,734 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:11:11,793 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-25 18:11:11,956 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69
[2023-12-25 18:11:11,957 INFO  L420      AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:11,957 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:11,958 INFO  L85        PathProgramCache]: Analyzing trace with hash -317213361, now seen corresponding path program 1 times
[2023-12-25 18:11:11,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:11,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620913201]
[2023-12-25 18:11:11,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:11,958 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:12,519 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:12,520 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431266014]
[2023-12-25 18:11:12,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:12,521 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:12,521 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:12,522 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)
[2023-12-25 18:11:12,541 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-25 18:11:16,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:16,920 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19367 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 18:11:16,975 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:17,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:11:17,034 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 18:11:17,034 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:17,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620913201]
[2023-12-25 18:11:17,034 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:17,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431266014]
[2023-12-25 18:11:17,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431266014] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:11:17,034 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:11:17,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:11:17,034 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556636149]
[2023-12-25 18:11:17,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:17,037 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:17,037 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:17,040 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:17,040 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:17,040 INFO  L87              Difference]: Start difference. First operand 6119 states and 10133 transitions. Second operand  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:17,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:17,157 INFO  L93              Difference]: Finished difference Result 11311 states and 18788 transitions.
[2023-12-25 18:11:17,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:11:17,159 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 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 4065
[2023-12-25 18:11:17,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:17,165 INFO  L225             Difference]: With dead ends: 11311
[2023-12-25 18:11:17,165 INFO  L226             Difference]: Without dead ends: 6128
[2023-12-25 18:11:17,169 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4064 GetRequests, 4062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:17,170 INFO  L413           NwaCegarLoop]: 9022 mSDtfsCounter, 12 mSDsluCounter, 18034 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27056 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:17,170 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27056 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:17,175 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6128 states.
[2023-12-25 18:11:17,221 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6128 to 6120.
[2023-12-25 18:11:17,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6120 states, 6119 states have (on average 1.6561529661709429) internal successors, (10134), 6119 states have internal predecessors, (10134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:17,234 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 10134 transitions.
[2023-12-25 18:11:17,234 INFO  L78                 Accepts]: Start accepts. Automaton has 6120 states and 10134 transitions. Word has length 4065
[2023-12-25 18:11:17,235 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:17,235 INFO  L495      AbstractCegarLoop]: Abstraction has 6120 states and 10134 transitions.
[2023-12-25 18:11:17,236 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:17,236 INFO  L276                IsEmpty]: Start isEmpty. Operand 6120 states and 10134 transitions.
[2023-12-25 18:11:17,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4066
[2023-12-25 18:11:17,326 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:17,327 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:11:17,386 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-25 18:11:17,550 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:17,550 INFO  L420      AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:17,550 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:17,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -1854818787, now seen corresponding path program 1 times
[2023-12-25 18:11:17,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:17,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375818514]
[2023-12-25 18:11:17,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:17,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:17,848 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:17,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793168380]
[2023-12-25 18:11:17,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:17,850 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:17,850 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:17,851 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)
[2023-12-25 18:11:17,853 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-25 18:11:22,407 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:22,609 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19368 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 18:11:22,678 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:22,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 18:11:22,762 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 18:11:22,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:22,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375818514]
[2023-12-25 18:11:22,762 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:22,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793168380]
[2023-12-25 18:11:22,762 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793168380] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 18:11:22,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 18:11:22,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 18:11:22,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397507059]
[2023-12-25 18:11:22,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:22,767 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:22,767 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:22,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:22,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:22,771 INFO  L87              Difference]: Start difference. First operand 6120 states and 10134 transitions. Second operand  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:22,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:22,902 INFO  L93              Difference]: Finished difference Result 11313 states and 18790 transitions.
[2023-12-25 18:11:22,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:11:22,903 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 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 4065
[2023-12-25 18:11:22,904 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:22,910 INFO  L225             Difference]: With dead ends: 11313
[2023-12-25 18:11:22,910 INFO  L226             Difference]: Without dead ends: 6129
[2023-12-25 18:11:22,914 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4064 GetRequests, 4062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 18:11:22,915 INFO  L413           NwaCegarLoop]: 9022 mSDtfsCounter, 12 mSDsluCounter, 18034 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27056 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:22,915 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27056 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:22,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6129 states.
[2023-12-25 18:11:22,960 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 6121.
[2023-12-25 18:11:22,965 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6121 states, 6120 states have (on average 1.6560457516339868) internal successors, (10135), 6120 states have internal predecessors, (10135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:22,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 10135 transitions.
[2023-12-25 18:11:22,971 INFO  L78                 Accepts]: Start accepts. Automaton has 6121 states and 10135 transitions. Word has length 4065
[2023-12-25 18:11:22,972 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:22,972 INFO  L495      AbstractCegarLoop]: Abstraction has 6121 states and 10135 transitions.
[2023-12-25 18:11:22,973 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1016.25) internal successors, (4065), 4 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:22,973 INFO  L276                IsEmpty]: Start isEmpty. Operand 6121 states and 10135 transitions.
[2023-12-25 18:11:23,064 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4066
[2023-12-25 18:11:23,064 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:23,066 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:11:23,124 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-12-25 18:11:23,284 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:23,285 INFO  L420      AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:23,285 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:23,286 INFO  L85        PathProgramCache]: Analyzing trace with hash -1980832021, now seen corresponding path program 1 times
[2023-12-25 18:11:23,286 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:23,286 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108496007]
[2023-12-25 18:11:23,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:23,286 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:23,762 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:23,763 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045761842]
[2023-12-25 18:11:23,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:23,764 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:23,764 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:23,765 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)
[2023-12-25 18:11:23,767 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-25 18:11:28,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:28,515 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19369 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-25 18:11:28,687 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:29,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 4 proven. 222 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:11:29,349 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:11:29,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked.
[2023-12-25 18:11:29,480 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:29,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108496007]
[2023-12-25 18:11:29,481 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:29,481 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045761842]
[2023-12-25 18:11:29,481 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045761842] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:11:29,481 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:11:29,481 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 18:11:29,481 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343707930]
[2023-12-25 18:11:29,482 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:29,484 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:11:29,484 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:29,486 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:11:29,486 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:11:29,486 INFO  L87              Difference]: Start difference. First operand 6121 states and 10135 transitions. Second operand  has 5 states, 5 states have (on average 727.2) internal successors, (3636), 5 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:29,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:29,931 INFO  L93              Difference]: Finished difference Result 21669 states and 36052 transitions.
[2023-12-25 18:11:29,931 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 18:11:29,932 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 727.2) internal successors, (3636), 5 states have internal predecessors, (3636), 0 states have call successors, (0), 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 4065
[2023-12-25 18:11:29,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:29,951 INFO  L225             Difference]: With dead ends: 21669
[2023-12-25 18:11:29,951 INFO  L226             Difference]: Without dead ends: 16484
[2023-12-25 18:11:29,960 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8130 GetRequests, 8118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182
[2023-12-25 18:11:29,960 INFO  L413           NwaCegarLoop]: 18750 mSDtfsCounter, 17254 mSDsluCounter, 46507 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17254 SdHoareTripleChecker+Valid, 65257 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:29,960 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17254 Valid, 65257 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:11:29,975 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16484 states.
[2023-12-25 18:11:30,053 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16484 to 6121.
[2023-12-25 18:11:30,059 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6121 states, 6120 states have (on average 1.6560457516339868) internal successors, (10135), 6120 states have internal predecessors, (10135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:30,065 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 10135 transitions.
[2023-12-25 18:11:30,065 INFO  L78                 Accepts]: Start accepts. Automaton has 6121 states and 10135 transitions. Word has length 4065
[2023-12-25 18:11:30,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:30,068 INFO  L495      AbstractCegarLoop]: Abstraction has 6121 states and 10135 transitions.
[2023-12-25 18:11:30,068 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 727.2) internal successors, (3636), 5 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:30,068 INFO  L276                IsEmpty]: Start isEmpty. Operand 6121 states and 10135 transitions.
[2023-12-25 18:11:30,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4067
[2023-12-25 18:11:30,156 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:30,157 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:11:30,227 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-25 18:11:30,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:30,373 INFO  L420      AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:30,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:30,373 INFO  L85        PathProgramCache]: Analyzing trace with hash 323660021, now seen corresponding path program 1 times
[2023-12-25 18:11:30,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:30,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274695613]
[2023-12-25 18:11:30,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:30,374 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:30,664 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:30,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044439259]
[2023-12-25 18:11:30,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:30,665 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:30,665 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:30,666 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:11:30,669 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-25 18:11:35,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:35,673 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19372 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:11:35,798 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:36,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 6 proven. 220 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:11:36,619 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:11:36,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked.
[2023-12-25 18:11:36,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:36,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274695613]
[2023-12-25 18:11:36,932 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:36,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044439259]
[2023-12-25 18:11:36,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044439259] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:11:36,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:11:36,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:11:36,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100424494]
[2023-12-25 18:11:36,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:36,936 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:36,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:36,938 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:36,938 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:11:36,938 INFO  L87              Difference]: Start difference. First operand 6121 states and 10135 transitions. Second operand  has 4 states, 4 states have (on average 909.75) internal successors, (3639), 4 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:37,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:37,095 INFO  L93              Difference]: Finished difference Result 16489 states and 27416 transitions.
[2023-12-25 18:11:37,095 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:11:37,096 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 909.75) internal successors, (3639), 4 states have internal predecessors, (3639), 0 states have call successors, (0), 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 4066
[2023-12-25 18:11:37,099 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:37,111 INFO  L225             Difference]: With dead ends: 16489
[2023-12-25 18:11:37,111 INFO  L226             Difference]: Without dead ends: 11301
[2023-12-25 18:11:37,118 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8131 GetRequests, 8122 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:11:37,119 INFO  L413           NwaCegarLoop]: 10116 mSDtfsCounter, 8622 mSDsluCounter, 19129 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8622 SdHoareTripleChecker+Valid, 29245 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:37,119 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8622 Valid, 29245 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:37,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11301 states.
[2023-12-25 18:11:37,194 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11301 to 6123.
[2023-12-25 18:11:37,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6123 states, 6122 states have (on average 1.6558314276380268) internal successors, (10137), 6122 states have internal predecessors, (10137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:37,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6123 states to 6123 states and 10137 transitions.
[2023-12-25 18:11:37,209 INFO  L78                 Accepts]: Start accepts. Automaton has 6123 states and 10137 transitions. Word has length 4066
[2023-12-25 18:11:37,211 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:37,211 INFO  L495      AbstractCegarLoop]: Abstraction has 6123 states and 10137 transitions.
[2023-12-25 18:11:37,212 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 909.75) internal successors, (3639), 4 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:37,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 6123 states and 10137 transitions.
[2023-12-25 18:11:37,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4068
[2023-12-25 18:11:37,303 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:37,304 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:11:37,377 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-12-25 18:11:37,519 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:37,519 INFO  L420      AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:37,520 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:37,521 INFO  L85        PathProgramCache]: Analyzing trace with hash -1926433337, now seen corresponding path program 1 times
[2023-12-25 18:11:37,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:37,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378531621]
[2023-12-25 18:11:37,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:37,522 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:38,074 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:38,074 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496912468]
[2023-12-25 18:11:38,075 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:38,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:38,076 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:38,077 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:11:38,080 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-25 18:11:42,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:42,830 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19376 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:11:42,887 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:43,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 8 proven. 218 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:11:43,498 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:11:43,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked.
[2023-12-25 18:11:43,565 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:43,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378531621]
[2023-12-25 18:11:43,565 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:43,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496912468]
[2023-12-25 18:11:43,565 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [496912468] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:11:43,565 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:11:43,565 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:11:43,566 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279554856]
[2023-12-25 18:11:43,566 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:43,568 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:43,568 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:43,570 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:43,570 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:11:43,570 INFO  L87              Difference]: Start difference. First operand 6123 states and 10137 transitions. Second operand  has 4 states, 4 states have (on average 910.5) internal successors, (3642), 4 states have internal predecessors, (3642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:43,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:43,857 INFO  L93              Difference]: Finished difference Result 16495 states and 27422 transitions.
[2023-12-25 18:11:43,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:11:43,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 910.5) internal successors, (3642), 4 states have internal predecessors, (3642), 0 states have call successors, (0), 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 4067
[2023-12-25 18:11:43,861 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:43,870 INFO  L225             Difference]: With dead ends: 16495
[2023-12-25 18:11:43,870 INFO  L226             Difference]: Without dead ends: 11302
[2023-12-25 18:11:43,875 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8133 GetRequests, 8124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:11:43,875 INFO  L413           NwaCegarLoop]: 10111 mSDtfsCounter, 8619 mSDsluCounter, 19124 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8619 SdHoareTripleChecker+Valid, 29235 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:43,876 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8619 Valid, 29235 Invalid, 19 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:43,882 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11302 states.
[2023-12-25 18:11:43,933 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 6125.
[2023-12-25 18:11:43,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6125 states, 6124 states have (on average 1.6556172436316132) internal successors, (10139), 6124 states have internal predecessors, (10139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:43,942 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6125 states to 6125 states and 10139 transitions.
[2023-12-25 18:11:43,943 INFO  L78                 Accepts]: Start accepts. Automaton has 6125 states and 10139 transitions. Word has length 4067
[2023-12-25 18:11:43,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:43,944 INFO  L495      AbstractCegarLoop]: Abstraction has 6125 states and 10139 transitions.
[2023-12-25 18:11:43,945 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 910.5) internal successors, (3642), 4 states have internal predecessors, (3642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:43,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 6125 states and 10139 transitions.
[2023-12-25 18:11:44,032 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4069
[2023-12-25 18:11:44,032 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:44,033 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1]
[2023-12-25 18:11:44,104 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2023-12-25 18:11:44,256 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:44,257 INFO  L420      AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:44,257 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:44,257 INFO  L85        PathProgramCache]: Analyzing trace with hash 2085024029, now seen corresponding path program 1 times
[2023-12-25 18:11:44,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:44,258 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901817559]
[2023-12-25 18:11:44,258 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:44,258 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:44,622 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:44,622 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825803079]
[2023-12-25 18:11:44,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:44,623 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:44,624 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:44,625 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:11:44,627 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-25 18:11:49,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:49,154 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19379 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:11:49,200 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:49,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 10 proven. 216 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:11:49,674 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:11:49,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked.
[2023-12-25 18:11:49,725 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:49,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901817559]
[2023-12-25 18:11:49,726 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:49,726 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825803079]
[2023-12-25 18:11:49,726 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825803079] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:11:49,726 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:11:49,726 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:11:49,726 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065409422]
[2023-12-25 18:11:49,726 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:49,728 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:49,729 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:49,730 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:49,730 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:11:49,730 INFO  L87              Difference]: Start difference. First operand 6125 states and 10139 transitions. Second operand  has 4 states, 4 states have (on average 911.25) internal successors, (3645), 4 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:49,877 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:49,878 INFO  L93              Difference]: Finished difference Result 16501 states and 27428 transitions.
[2023-12-25 18:11:49,878 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:11:49,879 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 911.25) internal successors, (3645), 4 states have internal predecessors, (3645), 0 states have call successors, (0), 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 4068
[2023-12-25 18:11:49,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:49,892 INFO  L225             Difference]: With dead ends: 16501
[2023-12-25 18:11:49,892 INFO  L226             Difference]: Without dead ends: 11303
[2023-12-25 18:11:49,897 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8135 GetRequests, 8126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:11:49,897 INFO  L413           NwaCegarLoop]: 10106 mSDtfsCounter, 8616 mSDsluCounter, 19119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8616 SdHoareTripleChecker+Valid, 29225 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:49,898 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8616 Valid, 29225 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:49,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11303 states.
[2023-12-25 18:11:49,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 6127.
[2023-12-25 18:11:49,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6127 states, 6126 states have (on average 1.6554031994776364) internal successors, (10141), 6126 states have internal predecessors, (10141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:49,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 10141 transitions.
[2023-12-25 18:11:49,975 INFO  L78                 Accepts]: Start accepts. Automaton has 6127 states and 10141 transitions. Word has length 4068
[2023-12-25 18:11:49,977 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:49,977 INFO  L495      AbstractCegarLoop]: Abstraction has 6127 states and 10141 transitions.
[2023-12-25 18:11:49,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 911.25) internal successors, (3645), 4 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:49,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 6127 states and 10141 transitions.
[2023-12-25 18:11:50,142 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4070
[2023-12-25 18:11:50,142 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:50,143 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1]
[2023-12-25 18:11:50,205 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-12-25 18:11:50,364 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75
[2023-12-25 18:11:50,365 INFO  L420      AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:50,365 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:50,366 INFO  L85        PathProgramCache]: Analyzing trace with hash -1629764191, now seen corresponding path program 1 times
[2023-12-25 18:11:50,366 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:50,366 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141410095]
[2023-12-25 18:11:50,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:50,366 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:50,655 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:50,655 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845783800]
[2023-12-25 18:11:50,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:50,656 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:50,656 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:50,657 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:11:50,658 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-25 18:11:55,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:11:55,416 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19382 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:11:55,469 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:11:55,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 214 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:11:55,938 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:11:55,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked.
[2023-12-25 18:11:55,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:11:55,988 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141410095]
[2023-12-25 18:11:55,988 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:11:55,988 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845783800]
[2023-12-25 18:11:55,988 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [845783800] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:11:55,988 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:11:55,988 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:11:55,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227668286]
[2023-12-25 18:11:55,989 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:11:55,991 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:11:55,991 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:11:55,993 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:11:55,993 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:11:55,993 INFO  L87              Difference]: Start difference. First operand 6127 states and 10141 transitions. Second operand  has 4 states, 4 states have (on average 912.0) internal successors, (3648), 4 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:56,217 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:11:56,217 INFO  L93              Difference]: Finished difference Result 16507 states and 27434 transitions.
[2023-12-25 18:11:56,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:11:56,218 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 912.0) internal successors, (3648), 4 states have internal predecessors, (3648), 0 states have call successors, (0), 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 4069
[2023-12-25 18:11:56,221 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:11:56,230 INFO  L225             Difference]: With dead ends: 16507
[2023-12-25 18:11:56,231 INFO  L226             Difference]: Without dead ends: 11304
[2023-12-25 18:11:56,236 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8137 GetRequests, 8128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:11:56,236 INFO  L413           NwaCegarLoop]: 10101 mSDtfsCounter, 8613 mSDsluCounter, 19114 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8613 SdHoareTripleChecker+Valid, 29215 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:11:56,236 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8613 Valid, 29215 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:11:56,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11304 states.
[2023-12-25 18:11:56,300 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 6129.
[2023-12-25 18:11:56,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6129 states, 6128 states have (on average 1.6551892950391645) internal successors, (10143), 6128 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:56,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 10143 transitions.
[2023-12-25 18:11:56,312 INFO  L78                 Accepts]: Start accepts. Automaton has 6129 states and 10143 transitions. Word has length 4069
[2023-12-25 18:11:56,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:11:56,314 INFO  L495      AbstractCegarLoop]: Abstraction has 6129 states and 10143 transitions.
[2023-12-25 18:11:56,314 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 912.0) internal successors, (3648), 4 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:11:56,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 6129 states and 10143 transitions.
[2023-12-25 18:11:56,402 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4071
[2023-12-25 18:11:56,402 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:11:56,403 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1]
[2023-12-25 18:11:56,472 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-12-25 18:11:56,620 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:56,620 INFO  L420      AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:11:56,621 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:11:56,621 INFO  L85        PathProgramCache]: Analyzing trace with hash -2079863229, now seen corresponding path program 1 times
[2023-12-25 18:11:56,621 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:11:56,621 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961839776]
[2023-12-25 18:11:56,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:56,622 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:11:56,925 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:11:56,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605574406]
[2023-12-25 18:11:56,926 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:11:56,926 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:11:56,926 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:11:56,927 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:11:56,929 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-12-25 18:12:01,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:01,609 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19385 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:01,659 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:02,124 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 14 proven. 212 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:02,124 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:02,177 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked.
[2023-12-25 18:12:02,177 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:02,177 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961839776]
[2023-12-25 18:12:02,177 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:02,177 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605574406]
[2023-12-25 18:12:02,177 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [605574406] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:02,177 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:02,178 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:02,178 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703664207]
[2023-12-25 18:12:02,178 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:02,180 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:02,180 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:02,182 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:02,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:02,182 INFO  L87              Difference]: Start difference. First operand 6129 states and 10143 transitions. Second operand  has 4 states, 4 states have (on average 912.75) internal successors, (3651), 4 states have internal predecessors, (3651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:02,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:02,426 INFO  L93              Difference]: Finished difference Result 16513 states and 27440 transitions.
[2023-12-25 18:12:02,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:02,427 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 912.75) internal successors, (3651), 4 states have internal predecessors, (3651), 0 states have call successors, (0), 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 4070
[2023-12-25 18:12:02,430 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:02,439 INFO  L225             Difference]: With dead ends: 16513
[2023-12-25 18:12:02,439 INFO  L226             Difference]: Without dead ends: 11305
[2023-12-25 18:12:02,443 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8139 GetRequests, 8130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:02,444 INFO  L413           NwaCegarLoop]: 10096 mSDtfsCounter, 8610 mSDsluCounter, 19109 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8610 SdHoareTripleChecker+Valid, 29205 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:02,444 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8610 Valid, 29205 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:02,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11305 states.
[2023-12-25 18:12:02,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11305 to 6131.
[2023-12-25 18:12:02,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6131 states, 6130 states have (on average 1.6549755301794453) internal successors, (10145), 6130 states have internal predecessors, (10145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:02,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6131 states to 6131 states and 10145 transitions.
[2023-12-25 18:12:02,532 INFO  L78                 Accepts]: Start accepts. Automaton has 6131 states and 10145 transitions. Word has length 4070
[2023-12-25 18:12:02,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:02,534 INFO  L495      AbstractCegarLoop]: Abstraction has 6131 states and 10145 transitions.
[2023-12-25 18:12:02,534 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 912.75) internal successors, (3651), 4 states have internal predecessors, (3651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:02,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 6131 states and 10145 transitions.
[2023-12-25 18:12:02,622 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4072
[2023-12-25 18:12:02,622 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:02,623 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:12:02,692 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:02,848 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77
[2023-12-25 18:12:02,848 INFO  L420      AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:02,849 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:02,849 INFO  L85        PathProgramCache]: Analyzing trace with hash -525394563, now seen corresponding path program 1 times
[2023-12-25 18:12:02,849 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:02,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477441773]
[2023-12-25 18:12:02,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:02,850 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:03,148 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:03,148 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496143217]
[2023-12-25 18:12:03,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:03,149 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:03,149 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:03,150 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:03,152 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-12-25 18:12:07,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:07,979 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19389 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:08,032 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:08,502 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 210 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:08,503 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:08,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked.
[2023-12-25 18:12:08,552 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:08,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477441773]
[2023-12-25 18:12:08,552 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:08,553 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496143217]
[2023-12-25 18:12:08,553 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496143217] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:08,553 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:08,553 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:08,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525185702]
[2023-12-25 18:12:08,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:08,556 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:08,556 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:08,557 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:08,557 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:08,558 INFO  L87              Difference]: Start difference. First operand 6131 states and 10145 transitions. Second operand  has 4 states, 4 states have (on average 913.5) internal successors, (3654), 4 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:08,708 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:08,708 INFO  L93              Difference]: Finished difference Result 16519 states and 27446 transitions.
[2023-12-25 18:12:08,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:08,710 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 913.5) internal successors, (3654), 4 states have internal predecessors, (3654), 0 states have call successors, (0), 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 4071
[2023-12-25 18:12:08,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:08,723 INFO  L225             Difference]: With dead ends: 16519
[2023-12-25 18:12:08,723 INFO  L226             Difference]: Without dead ends: 11306
[2023-12-25 18:12:08,729 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8141 GetRequests, 8132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:08,730 INFO  L413           NwaCegarLoop]: 10091 mSDtfsCounter, 8607 mSDsluCounter, 19104 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8607 SdHoareTripleChecker+Valid, 29195 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:08,730 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8607 Valid, 29195 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:08,739 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11306 states.
[2023-12-25 18:12:08,799 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11306 to 6133.
[2023-12-25 18:12:08,804 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6133 states, 6132 states have (on average 1.6547619047619047) internal successors, (10147), 6132 states have internal predecessors, (10147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:08,810 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 10147 transitions.
[2023-12-25 18:12:08,810 INFO  L78                 Accepts]: Start accepts. Automaton has 6133 states and 10147 transitions. Word has length 4071
[2023-12-25 18:12:08,812 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:08,812 INFO  L495      AbstractCegarLoop]: Abstraction has 6133 states and 10147 transitions.
[2023-12-25 18:12:08,813 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 913.5) internal successors, (3654), 4 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:08,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 6133 states and 10147 transitions.
[2023-12-25 18:12:08,980 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4073
[2023-12-25 18:12:08,980 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:08,981 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:12:09,056 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:09,200 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78
[2023-12-25 18:12:09,201 INFO  L420      AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:09,201 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:09,202 INFO  L85        PathProgramCache]: Analyzing trace with hash 2093401963, now seen corresponding path program 1 times
[2023-12-25 18:12:09,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:09,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464675662]
[2023-12-25 18:12:09,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:09,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:09,595 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:09,595 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530613332]
[2023-12-25 18:12:09,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:09,596 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:09,596 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:09,617 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:09,641 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2023-12-25 18:12:14,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:14,222 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19392 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:14,523 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:14,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 18 proven. 208 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:14,924 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:14,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked.
[2023-12-25 18:12:14,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:14,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464675662]
[2023-12-25 18:12:14,972 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:14,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530613332]
[2023-12-25 18:12:14,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530613332] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:14,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:14,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:14,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808074636]
[2023-12-25 18:12:14,973 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:14,975 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:14,975 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:14,977 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:14,977 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:14,978 INFO  L87              Difference]: Start difference. First operand 6133 states and 10147 transitions. Second operand  has 4 states, 4 states have (on average 914.25) internal successors, (3657), 4 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:15,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:15,128 INFO  L93              Difference]: Finished difference Result 16525 states and 27452 transitions.
[2023-12-25 18:12:15,128 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:15,129 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 914.25) internal successors, (3657), 4 states have internal predecessors, (3657), 0 states have call successors, (0), 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 4072
[2023-12-25 18:12:15,131 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:15,144 INFO  L225             Difference]: With dead ends: 16525
[2023-12-25 18:12:15,145 INFO  L226             Difference]: Without dead ends: 11307
[2023-12-25 18:12:15,151 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8143 GetRequests, 8134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:15,151 INFO  L413           NwaCegarLoop]: 10086 mSDtfsCounter, 8604 mSDsluCounter, 19099 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8604 SdHoareTripleChecker+Valid, 29185 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:15,151 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8604 Valid, 29185 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:15,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11307 states.
[2023-12-25 18:12:15,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 6135.
[2023-12-25 18:12:15,232 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6135 states, 6134 states have (on average 1.6545484186501467) internal successors, (10149), 6134 states have internal predecessors, (10149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:15,238 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 10149 transitions.
[2023-12-25 18:12:15,246 INFO  L78                 Accepts]: Start accepts. Automaton has 6135 states and 10149 transitions. Word has length 4072
[2023-12-25 18:12:15,248 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:15,248 INFO  L495      AbstractCegarLoop]: Abstraction has 6135 states and 10149 transitions.
[2023-12-25 18:12:15,249 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 914.25) internal successors, (3657), 4 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:15,249 INFO  L276                IsEmpty]: Start isEmpty. Operand 6135 states and 10149 transitions.
[2023-12-25 18:12:15,470 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4074
[2023-12-25 18:12:15,470 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:15,471 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:12:15,541 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:15,696 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79
[2023-12-25 18:12:15,696 INFO  L420      AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:15,697 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:15,697 INFO  L85        PathProgramCache]: Analyzing trace with hash 1316153687, now seen corresponding path program 1 times
[2023-12-25 18:12:15,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:15,698 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206555169]
[2023-12-25 18:12:15,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:15,698 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:15,996 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:15,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2085507416]
[2023-12-25 18:12:15,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:15,997 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:15,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:15,999 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:16,019 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2023-12-25 18:12:20,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:20,744 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19395 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:20,788 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:21,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 20 proven. 206 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:21,247 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:21,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2023-12-25 18:12:21,294 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:21,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206555169]
[2023-12-25 18:12:21,294 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:21,295 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085507416]
[2023-12-25 18:12:21,295 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085507416] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:21,295 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:21,295 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:21,295 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462171394]
[2023-12-25 18:12:21,295 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:21,298 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:21,298 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:21,299 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:21,299 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:21,300 INFO  L87              Difference]: Start difference. First operand 6135 states and 10149 transitions. Second operand  has 4 states, 4 states have (on average 915.0) internal successors, (3660), 4 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)
[2023-12-25 18:12:21,593 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:21,593 INFO  L93              Difference]: Finished difference Result 16531 states and 27458 transitions.
[2023-12-25 18:12:21,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:21,594 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 915.0) internal successors, (3660), 4 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) Word has length 4073
[2023-12-25 18:12:21,597 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:21,610 INFO  L225             Difference]: With dead ends: 16531
[2023-12-25 18:12:21,610 INFO  L226             Difference]: Without dead ends: 11308
[2023-12-25 18:12:21,617 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8145 GetRequests, 8136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:21,617 INFO  L413           NwaCegarLoop]: 10081 mSDtfsCounter, 8601 mSDsluCounter, 19094 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8601 SdHoareTripleChecker+Valid, 29175 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:21,618 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8601 Valid, 29175 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:21,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11308 states.
[2023-12-25 18:12:21,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11308 to 6137.
[2023-12-25 18:12:21,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6137 states, 6136 states have (on average 1.654335071707953) internal successors, (10151), 6136 states have internal predecessors, (10151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:21,714 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 10151 transitions.
[2023-12-25 18:12:21,714 INFO  L78                 Accepts]: Start accepts. Automaton has 6137 states and 10151 transitions. Word has length 4073
[2023-12-25 18:12:21,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:21,717 INFO  L495      AbstractCegarLoop]: Abstraction has 6137 states and 10151 transitions.
[2023-12-25 18:12:21,717 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 915.0) internal successors, (3660), 4 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)
[2023-12-25 18:12:21,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 6137 states and 10151 transitions.
[2023-12-25 18:12:21,814 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4075
[2023-12-25 18:12:21,815 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:21,816 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:12:21,896 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:22,040 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable80
[2023-12-25 18:12:22,040 INFO  L420      AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:22,041 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:22,041 INFO  L85        PathProgramCache]: Analyzing trace with hash 1834322065, now seen corresponding path program 1 times
[2023-12-25 18:12:22,041 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:22,041 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262286481]
[2023-12-25 18:12:22,042 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:22,042 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:22,343 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:22,343 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908257489]
[2023-12-25 18:12:22,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:22,344 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:22,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:22,345 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:22,348 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2023-12-25 18:12:26,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:27,004 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19398 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:27,054 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:27,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 22 proven. 204 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:27,520 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:27,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked.
[2023-12-25 18:12:27,568 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:27,568 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262286481]
[2023-12-25 18:12:27,568 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:27,568 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908257489]
[2023-12-25 18:12:27,568 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908257489] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:27,568 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:27,568 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:27,569 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839579106]
[2023-12-25 18:12:27,569 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:27,571 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:27,571 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:27,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:27,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:27,573 INFO  L87              Difference]: Start difference. First operand 6137 states and 10151 transitions. Second operand  has 4 states, 4 states have (on average 915.75) internal successors, (3663), 4 states have internal predecessors, (3663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:27,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:27,792 INFO  L93              Difference]: Finished difference Result 16537 states and 27464 transitions.
[2023-12-25 18:12:27,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:27,793 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 915.75) internal successors, (3663), 4 states have internal predecessors, (3663), 0 states have call successors, (0), 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 4074
[2023-12-25 18:12:27,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:27,806 INFO  L225             Difference]: With dead ends: 16537
[2023-12-25 18:12:27,806 INFO  L226             Difference]: Without dead ends: 11309
[2023-12-25 18:12:27,812 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8147 GetRequests, 8138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:27,813 INFO  L413           NwaCegarLoop]: 10076 mSDtfsCounter, 8598 mSDsluCounter, 19089 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8598 SdHoareTripleChecker+Valid, 29165 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:27,813 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8598 Valid, 29165 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:12:27,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11309 states.
[2023-12-25 18:12:27,876 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 6139.
[2023-12-25 18:12:27,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6139 states, 6138 states have (on average 1.6541218637992832) internal successors, (10153), 6138 states have internal predecessors, (10153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:27,887 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 10153 transitions.
[2023-12-25 18:12:27,887 INFO  L78                 Accepts]: Start accepts. Automaton has 6139 states and 10153 transitions. Word has length 4074
[2023-12-25 18:12:27,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:27,889 INFO  L495      AbstractCegarLoop]: Abstraction has 6139 states and 10153 transitions.
[2023-12-25 18:12:27,890 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 915.75) internal successors, (3663), 4 states have internal predecessors, (3663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:27,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 6139 states and 10153 transitions.
[2023-12-25 18:12:27,977 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4076
[2023-12-25 18:12:27,977 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:27,978 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:12:28,041 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:28,200 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:28,201 INFO  L420      AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:28,201 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:28,201 INFO  L85        PathProgramCache]: Analyzing trace with hash 2124712499, now seen corresponding path program 1 times
[2023-12-25 18:12:28,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:28,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222863204]
[2023-12-25 18:12:28,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:28,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:28,483 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:28,483 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194531014]
[2023-12-25 18:12:28,484 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:28,484 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:28,484 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:28,485 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:28,506 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2023-12-25 18:12:33,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:33,192 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19402 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:33,246 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:33,714 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 24 proven. 202 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:33,714 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:33,763 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked.
[2023-12-25 18:12:33,764 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:33,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222863204]
[2023-12-25 18:12:33,764 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:33,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194531014]
[2023-12-25 18:12:33,764 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [194531014] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:33,764 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:33,764 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:33,765 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52285969]
[2023-12-25 18:12:33,765 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:33,767 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:33,767 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:33,769 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:33,769 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:33,769 INFO  L87              Difference]: Start difference. First operand 6139 states and 10153 transitions. Second operand  has 4 states, 4 states have (on average 916.5) internal successors, (3666), 4 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:33,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:33,930 INFO  L93              Difference]: Finished difference Result 16543 states and 27470 transitions.
[2023-12-25 18:12:33,931 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:33,931 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 916.5) internal successors, (3666), 4 states have internal predecessors, (3666), 0 states have call successors, (0), 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 4075
[2023-12-25 18:12:33,934 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:33,944 INFO  L225             Difference]: With dead ends: 16543
[2023-12-25 18:12:33,945 INFO  L226             Difference]: Without dead ends: 11310
[2023-12-25 18:12:33,951 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8149 GetRequests, 8140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:33,952 INFO  L413           NwaCegarLoop]: 10071 mSDtfsCounter, 8595 mSDsluCounter, 19084 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8595 SdHoareTripleChecker+Valid, 29155 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:33,952 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8595 Valid, 29155 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:33,960 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11310 states.
[2023-12-25 18:12:34,019 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 6141.
[2023-12-25 18:12:34,025 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6141 states, 6140 states have (on average 1.6539087947882736) internal successors, (10155), 6140 states have internal predecessors, (10155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:34,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6141 states to 6141 states and 10155 transitions.
[2023-12-25 18:12:34,032 INFO  L78                 Accepts]: Start accepts. Automaton has 6141 states and 10155 transitions. Word has length 4075
[2023-12-25 18:12:34,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:34,034 INFO  L495      AbstractCegarLoop]: Abstraction has 6141 states and 10155 transitions.
[2023-12-25 18:12:34,035 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 916.5) internal successors, (3666), 4 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:34,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 6141 states and 10155 transitions.
[2023-12-25 18:12:34,194 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4077
[2023-12-25 18:12:34,195 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:34,196 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:12:34,265 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2023-12-25 18:12:34,420 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:34,421 INFO  L420      AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:34,421 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:34,421 INFO  L85        PathProgramCache]: Analyzing trace with hash -1112067399, now seen corresponding path program 1 times
[2023-12-25 18:12:34,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:34,422 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227919381]
[2023-12-25 18:12:34,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:34,422 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:34,730 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:34,730 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175578183]
[2023-12-25 18:12:34,731 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:34,731 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:34,731 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:34,732 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:34,741 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2023-12-25 18:12:39,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:39,482 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19405 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:39,537 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:40,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 26 proven. 200 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:40,242 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:40,293 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked.
[2023-12-25 18:12:40,293 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:40,293 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227919381]
[2023-12-25 18:12:40,293 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:40,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175578183]
[2023-12-25 18:12:40,294 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175578183] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:40,294 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:40,294 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:40,294 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330454636]
[2023-12-25 18:12:40,294 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:40,297 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:40,297 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:40,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:40,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:40,315 INFO  L87              Difference]: Start difference. First operand 6141 states and 10155 transitions. Second operand  has 4 states, 4 states have (on average 917.25) internal successors, (3669), 4 states have internal predecessors, (3669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:40,469 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:40,470 INFO  L93              Difference]: Finished difference Result 16549 states and 27476 transitions.
[2023-12-25 18:12:40,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:40,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 917.25) internal successors, (3669), 4 states have internal predecessors, (3669), 0 states have call successors, (0), 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 4076
[2023-12-25 18:12:40,474 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:40,486 INFO  L225             Difference]: With dead ends: 16549
[2023-12-25 18:12:40,486 INFO  L226             Difference]: Without dead ends: 11311
[2023-12-25 18:12:40,493 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8151 GetRequests, 8142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:40,494 INFO  L413           NwaCegarLoop]: 10066 mSDtfsCounter, 8592 mSDsluCounter, 19079 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8592 SdHoareTripleChecker+Valid, 29145 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:40,494 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8592 Valid, 29145 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:40,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11311 states.
[2023-12-25 18:12:40,569 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 6143.
[2023-12-25 18:12:40,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6143 states, 6142 states have (on average 1.6536958645392381) internal successors, (10157), 6142 states have internal predecessors, (10157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:40,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 10157 transitions.
[2023-12-25 18:12:40,583 INFO  L78                 Accepts]: Start accepts. Automaton has 6143 states and 10157 transitions. Word has length 4076
[2023-12-25 18:12:40,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:40,585 INFO  L495      AbstractCegarLoop]: Abstraction has 6143 states and 10157 transitions.
[2023-12-25 18:12:40,585 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 917.25) internal successors, (3669), 4 states have internal predecessors, (3669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:40,586 INFO  L276                IsEmpty]: Start isEmpty. Operand 6143 states and 10157 transitions.
[2023-12-25 18:12:40,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4078
[2023-12-25 18:12:40,674 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:40,689 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:12:40,781 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:40,923 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:40,923 INFO  L420      AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:40,924 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:40,924 INFO  L85        PathProgramCache]: Analyzing trace with hash 1840370189, now seen corresponding path program 1 times
[2023-12-25 18:12:40,924 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:40,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867160229]
[2023-12-25 18:12:40,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:40,925 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:41,338 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:41,339 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309136625]
[2023-12-25 18:12:41,339 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:41,340 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:41,340 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:41,341 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:41,343 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2023-12-25 18:12:46,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:46,748 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19408 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:46,813 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:47,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 28 proven. 198 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:47,371 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:47,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2023-12-25 18:12:47,422 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:47,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867160229]
[2023-12-25 18:12:47,422 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:47,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309136625]
[2023-12-25 18:12:47,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [309136625] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:47,422 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:47,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:47,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98633676]
[2023-12-25 18:12:47,424 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:47,594 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:47,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:47,603 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:47,603 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:47,604 INFO  L87              Difference]: Start difference. First operand 6143 states and 10157 transitions. Second operand  has 4 states, 4 states have (on average 918.0) internal successors, (3672), 4 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:47,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:47,759 INFO  L93              Difference]: Finished difference Result 16555 states and 27482 transitions.
[2023-12-25 18:12:47,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:47,760 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 918.0) internal successors, (3672), 4 states have internal predecessors, (3672), 0 states have call successors, (0), 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 4077
[2023-12-25 18:12:47,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:47,774 INFO  L225             Difference]: With dead ends: 16555
[2023-12-25 18:12:47,774 INFO  L226             Difference]: Without dead ends: 11312
[2023-12-25 18:12:47,780 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8153 GetRequests, 8144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:47,783 INFO  L413           NwaCegarLoop]: 10061 mSDtfsCounter, 8589 mSDsluCounter, 19074 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8589 SdHoareTripleChecker+Valid, 29135 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:47,783 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8589 Valid, 29135 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:47,791 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11312 states.
[2023-12-25 18:12:47,850 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 6145.
[2023-12-25 18:12:47,856 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6145 states, 6144 states have (on average 1.6534830729166667) internal successors, (10159), 6144 states have internal predecessors, (10159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:47,863 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6145 states to 6145 states and 10159 transitions.
[2023-12-25 18:12:47,864 INFO  L78                 Accepts]: Start accepts. Automaton has 6145 states and 10159 transitions. Word has length 4077
[2023-12-25 18:12:47,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:47,866 INFO  L495      AbstractCegarLoop]: Abstraction has 6145 states and 10159 transitions.
[2023-12-25 18:12:47,867 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 918.0) internal successors, (3672), 4 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:47,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 6145 states and 10159 transitions.
[2023-12-25 18:12:47,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4079
[2023-12-25 18:12:47,958 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:47,959 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:12:48,027 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2023-12-25 18:12:48,180 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:48,181 INFO  L420      AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:48,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:48,181 INFO  L85        PathProgramCache]: Analyzing trace with hash -295741473, now seen corresponding path program 1 times
[2023-12-25 18:12:48,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:48,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000049673]
[2023-12-25 18:12:48,182 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:48,182 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:48,490 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:48,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123874119]
[2023-12-25 18:12:48,491 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:48,491 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:48,491 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:48,492 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:48,493 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2023-12-25 18:12:53,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:53,290 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19411 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:53,334 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:53,719 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 30 proven. 196 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:53,719 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:53,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked.
[2023-12-25 18:12:53,767 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:53,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000049673]
[2023-12-25 18:12:53,767 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:53,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123874119]
[2023-12-25 18:12:53,767 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [123874119] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:53,767 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:53,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:53,768 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157618190]
[2023-12-25 18:12:53,768 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:53,770 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:53,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:53,798 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:53,799 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:53,800 INFO  L87              Difference]: Start difference. First operand 6145 states and 10159 transitions. Second operand  has 4 states, 4 states have (on average 918.75) internal successors, (3675), 4 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:53,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:53,945 INFO  L93              Difference]: Finished difference Result 16561 states and 27488 transitions.
[2023-12-25 18:12:53,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:53,946 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 918.75) internal successors, (3675), 4 states have internal predecessors, (3675), 0 states have call successors, (0), 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 4078
[2023-12-25 18:12:53,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:53,959 INFO  L225             Difference]: With dead ends: 16561
[2023-12-25 18:12:53,959 INFO  L226             Difference]: Without dead ends: 11313
[2023-12-25 18:12:53,966 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8155 GetRequests, 8146 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:53,966 INFO  L413           NwaCegarLoop]: 10056 mSDtfsCounter, 8586 mSDsluCounter, 19069 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8586 SdHoareTripleChecker+Valid, 29125 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:53,966 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8586 Valid, 29125 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:53,975 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11313 states.
[2023-12-25 18:12:54,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11313 to 6147.
[2023-12-25 18:12:54,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6147 states, 6146 states have (on average 1.6532704197852262) internal successors, (10161), 6146 states have internal predecessors, (10161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:54,131 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6147 states to 6147 states and 10161 transitions.
[2023-12-25 18:12:54,131 INFO  L78                 Accepts]: Start accepts. Automaton has 6147 states and 10161 transitions. Word has length 4078
[2023-12-25 18:12:54,133 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:12:54,134 INFO  L495      AbstractCegarLoop]: Abstraction has 6147 states and 10161 transitions.
[2023-12-25 18:12:54,134 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 918.75) internal successors, (3675), 4 states have internal predecessors, (3675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:54,134 INFO  L276                IsEmpty]: Start isEmpty. Operand 6147 states and 10161 transitions.
[2023-12-25 18:12:54,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4080
[2023-12-25 18:12:54,224 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:12:54,225 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:12:54,294 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2023-12-25 18:12:54,431 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:54,431 INFO  L420      AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:12:54,431 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:12:54,432 INFO  L85        PathProgramCache]: Analyzing trace with hash -78988311, now seen corresponding path program 1 times
[2023-12-25 18:12:54,432 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:12:54,432 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846124911]
[2023-12-25 18:12:54,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:54,432 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:12:54,706 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:12:54,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091335667]
[2023-12-25 18:12:54,708 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:12:54,708 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:12:54,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:12:54,709 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:12:54,734 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2023-12-25 18:12:59,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:12:59,351 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19415 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:12:59,393 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:12:59,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 32 proven. 194 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:12:59,761 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:12:59,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked.
[2023-12-25 18:12:59,808 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:12:59,808 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846124911]
[2023-12-25 18:12:59,808 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:12:59,808 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091335667]
[2023-12-25 18:12:59,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091335667] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:12:59,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:12:59,809 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:12:59,809 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139242693]
[2023-12-25 18:12:59,809 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:12:59,811 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:12:59,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:12:59,813 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:12:59,813 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:12:59,813 INFO  L87              Difference]: Start difference. First operand 6147 states and 10161 transitions. Second operand  has 4 states, 4 states have (on average 919.5) internal successors, (3678), 4 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:12:59,964 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:12:59,965 INFO  L93              Difference]: Finished difference Result 16567 states and 27494 transitions.
[2023-12-25 18:12:59,965 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:12:59,966 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 919.5) internal successors, (3678), 4 states have internal predecessors, (3678), 0 states have call successors, (0), 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 4079
[2023-12-25 18:12:59,968 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:12:59,978 INFO  L225             Difference]: With dead ends: 16567
[2023-12-25 18:12:59,979 INFO  L226             Difference]: Without dead ends: 11314
[2023-12-25 18:12:59,985 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8157 GetRequests, 8148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:12:59,985 INFO  L413           NwaCegarLoop]: 10051 mSDtfsCounter, 8583 mSDsluCounter, 19064 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8583 SdHoareTripleChecker+Valid, 29115 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:12:59,985 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8583 Valid, 29115 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:12:59,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11314 states.
[2023-12-25 18:13:00,053 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 6149.
[2023-12-25 18:13:00,059 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6149 states, 6148 states have (on average 1.6530579050097594) internal successors, (10163), 6148 states have internal predecessors, (10163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:00,066 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 10163 transitions.
[2023-12-25 18:13:00,066 INFO  L78                 Accepts]: Start accepts. Automaton has 6149 states and 10163 transitions. Word has length 4079
[2023-12-25 18:13:00,068 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:00,068 INFO  L495      AbstractCegarLoop]: Abstraction has 6149 states and 10163 transitions.
[2023-12-25 18:13:00,069 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 919.5) internal successors, (3678), 4 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:00,069 INFO  L276                IsEmpty]: Start isEmpty. Operand 6149 states and 10163 transitions.
[2023-12-25 18:13:00,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4081
[2023-12-25 18:13:00,157 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:00,158 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:13:00,227 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2023-12-25 18:13:00,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:00,372 INFO  L420      AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:00,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:00,373 INFO  L85        PathProgramCache]: Analyzing trace with hash 25408263, now seen corresponding path program 1 times
[2023-12-25 18:13:00,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:00,373 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035373575]
[2023-12-25 18:13:00,373 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:00,373 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:00,665 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:00,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440179208]
[2023-12-25 18:13:00,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:00,666 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:00,667 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:00,668 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:00,690 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2023-12-25 18:13:05,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:05,404 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19418 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:05,454 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:06,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 34 proven. 192 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:06,045 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:06,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked.
[2023-12-25 18:13:06,099 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:06,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035373575]
[2023-12-25 18:13:06,100 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:06,100 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440179208]
[2023-12-25 18:13:06,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440179208] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:06,100 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:06,100 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:06,100 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514829722]
[2023-12-25 18:13:06,101 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:06,103 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:06,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:06,104 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:06,104 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:06,105 INFO  L87              Difference]: Start difference. First operand 6149 states and 10163 transitions. Second operand  has 4 states, 4 states have (on average 920.25) internal successors, (3681), 4 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)
[2023-12-25 18:13:06,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:06,255 INFO  L93              Difference]: Finished difference Result 16573 states and 27500 transitions.
[2023-12-25 18:13:06,255 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:06,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 920.25) internal successors, (3681), 4 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) Word has length 4080
[2023-12-25 18:13:06,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:06,270 INFO  L225             Difference]: With dead ends: 16573
[2023-12-25 18:13:06,271 INFO  L226             Difference]: Without dead ends: 11315
[2023-12-25 18:13:06,277 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8159 GetRequests, 8150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:06,278 INFO  L413           NwaCegarLoop]: 10046 mSDtfsCounter, 8580 mSDsluCounter, 19059 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8580 SdHoareTripleChecker+Valid, 29105 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:06,278 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8580 Valid, 29105 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:06,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11315 states.
[2023-12-25 18:13:06,349 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11315 to 6151.
[2023-12-25 18:13:06,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6151 states, 6150 states have (on average 1.6528455284552845) internal successors, (10165), 6150 states have internal predecessors, (10165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:06,361 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6151 states to 6151 states and 10165 transitions.
[2023-12-25 18:13:06,361 INFO  L78                 Accepts]: Start accepts. Automaton has 6151 states and 10165 transitions. Word has length 4080
[2023-12-25 18:13:06,363 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:06,363 INFO  L495      AbstractCegarLoop]: Abstraction has 6151 states and 10165 transitions.
[2023-12-25 18:13:06,364 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 920.25) internal successors, (3681), 4 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)
[2023-12-25 18:13:06,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 6151 states and 10165 transitions.
[2023-12-25 18:13:06,453 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4082
[2023-12-25 18:13:06,453 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:06,454 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:13:06,519 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2023-12-25 18:13:06,680 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87
[2023-12-25 18:13:06,680 INFO  L420      AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:06,681 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:06,681 INFO  L85        PathProgramCache]: Analyzing trace with hash -623509565, now seen corresponding path program 1 times
[2023-12-25 18:13:06,681 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:06,681 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783258259]
[2023-12-25 18:13:06,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:06,681 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:07,046 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:07,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838030885]
[2023-12-25 18:13:07,047 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:07,048 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:07,048 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:07,049 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:07,071 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2023-12-25 18:13:11,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:11,690 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19421 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:11,733 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:12,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 36 proven. 190 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:12,197 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:12,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked.
[2023-12-25 18:13:12,244 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:12,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783258259]
[2023-12-25 18:13:12,244 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:12,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838030885]
[2023-12-25 18:13:12,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [838030885] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:12,246 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:12,247 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:12,247 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871947410]
[2023-12-25 18:13:12,247 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:12,250 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:12,250 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:12,251 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:12,251 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:12,252 INFO  L87              Difference]: Start difference. First operand 6151 states and 10165 transitions. Second operand  has 4 states, 4 states have (on average 921.0) internal successors, (3684), 4 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:12,478 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:12,478 INFO  L93              Difference]: Finished difference Result 16579 states and 27506 transitions.
[2023-12-25 18:13:12,478 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:12,479 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 921.0) internal successors, (3684), 4 states have internal predecessors, (3684), 0 states have call successors, (0), 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 4081
[2023-12-25 18:13:12,482 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:12,492 INFO  L225             Difference]: With dead ends: 16579
[2023-12-25 18:13:12,492 INFO  L226             Difference]: Without dead ends: 11316
[2023-12-25 18:13:12,498 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8161 GetRequests, 8152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:12,499 INFO  L413           NwaCegarLoop]: 10041 mSDtfsCounter, 8577 mSDsluCounter, 19054 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8577 SdHoareTripleChecker+Valid, 29095 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:12,499 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8577 Valid, 29095 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:12,506 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11316 states.
[2023-12-25 18:13:12,562 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 6153.
[2023-12-25 18:13:12,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6153 states, 6152 states have (on average 1.652633289986996) internal successors, (10167), 6152 states have internal predecessors, (10167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:12,572 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 10167 transitions.
[2023-12-25 18:13:12,572 INFO  L78                 Accepts]: Start accepts. Automaton has 6153 states and 10167 transitions. Word has length 4081
[2023-12-25 18:13:12,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:12,574 INFO  L495      AbstractCegarLoop]: Abstraction has 6153 states and 10167 transitions.
[2023-12-25 18:13:12,575 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 921.0) internal successors, (3684), 4 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:12,575 INFO  L276                IsEmpty]: Start isEmpty. Operand 6153 states and 10167 transitions.
[2023-12-25 18:13:12,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4083
[2023-12-25 18:13:12,662 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:12,663 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:13:12,723 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2023-12-25 18:13:12,879 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88
[2023-12-25 18:13:12,879 INFO  L420      AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:12,880 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:12,880 INFO  L85        PathProgramCache]: Analyzing trace with hash 1469103149, now seen corresponding path program 1 times
[2023-12-25 18:13:12,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:12,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678174753]
[2023-12-25 18:13:12,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:12,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:13,156 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:13,156 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569042885]
[2023-12-25 18:13:13,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:13,157 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:13,157 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:13,158 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:13,160 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2023-12-25 18:13:17,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:17,909 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19424 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:17,953 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:18,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 38 proven. 188 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:18,461 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:18,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked.
[2023-12-25 18:13:18,531 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:18,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678174753]
[2023-12-25 18:13:18,531 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:18,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569042885]
[2023-12-25 18:13:18,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [569042885] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:18,531 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:18,532 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:18,532 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568414636]
[2023-12-25 18:13:18,533 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:18,535 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:18,535 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:18,536 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:18,537 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:18,537 INFO  L87              Difference]: Start difference. First operand 6153 states and 10167 transitions. Second operand  has 4 states, 4 states have (on average 921.75) internal successors, (3687), 4 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:18,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:18,695 INFO  L93              Difference]: Finished difference Result 16585 states and 27512 transitions.
[2023-12-25 18:13:18,695 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:18,696 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 921.75) internal successors, (3687), 4 states have internal predecessors, (3687), 0 states have call successors, (0), 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 4082
[2023-12-25 18:13:18,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:18,710 INFO  L225             Difference]: With dead ends: 16585
[2023-12-25 18:13:18,711 INFO  L226             Difference]: Without dead ends: 11317
[2023-12-25 18:13:18,718 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8163 GetRequests, 8154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:18,723 INFO  L413           NwaCegarLoop]: 10036 mSDtfsCounter, 8574 mSDsluCounter, 19049 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8574 SdHoareTripleChecker+Valid, 29085 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:18,724 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8574 Valid, 29085 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:18,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11317 states.
[2023-12-25 18:13:18,802 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 6155.
[2023-12-25 18:13:18,809 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6155 states, 6154 states have (on average 1.6524211894702632) internal successors, (10169), 6154 states have internal predecessors, (10169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:18,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6155 states to 6155 states and 10169 transitions.
[2023-12-25 18:13:18,816 INFO  L78                 Accepts]: Start accepts. Automaton has 6155 states and 10169 transitions. Word has length 4082
[2023-12-25 18:13:18,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:18,819 INFO  L495      AbstractCegarLoop]: Abstraction has 6155 states and 10169 transitions.
[2023-12-25 18:13:18,819 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 921.75) internal successors, (3687), 4 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:18,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 6155 states and 10169 transitions.
[2023-12-25 18:13:18,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4084
[2023-12-25 18:13:18,917 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:18,918 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:13:18,985 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2023-12-25 18:13:19,138 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:19,139 INFO  L420      AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:19,139 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:19,139 INFO  L85        PathProgramCache]: Analyzing trace with hash -1273023841, now seen corresponding path program 1 times
[2023-12-25 18:13:19,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:19,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426762196]
[2023-12-25 18:13:19,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:19,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:19,615 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:19,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570199530]
[2023-12-25 18:13:19,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:19,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:19,617 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:19,618 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:19,623 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2023-12-25 18:13:23,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:23,871 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19428 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:23,919 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:24,422 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 40 proven. 186 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:24,422 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:24,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked.
[2023-12-25 18:13:24,469 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:24,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426762196]
[2023-12-25 18:13:24,469 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:24,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570199530]
[2023-12-25 18:13:24,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570199530] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:24,469 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:24,470 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:24,470 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538978953]
[2023-12-25 18:13:24,470 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:24,472 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:24,473 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:24,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:24,474 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:24,475 INFO  L87              Difference]: Start difference. First operand 6155 states and 10169 transitions. Second operand  has 4 states, 4 states have (on average 922.5) internal successors, (3690), 4 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:24,626 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:24,627 INFO  L93              Difference]: Finished difference Result 16591 states and 27518 transitions.
[2023-12-25 18:13:24,627 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:24,628 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 922.5) internal successors, (3690), 4 states have internal predecessors, (3690), 0 states have call successors, (0), 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 4083
[2023-12-25 18:13:24,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:24,641 INFO  L225             Difference]: With dead ends: 16591
[2023-12-25 18:13:24,641 INFO  L226             Difference]: Without dead ends: 11318
[2023-12-25 18:13:24,754 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8165 GetRequests, 8156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:24,755 INFO  L413           NwaCegarLoop]: 10031 mSDtfsCounter, 8571 mSDsluCounter, 19044 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8571 SdHoareTripleChecker+Valid, 29075 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:24,755 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8571 Valid, 29075 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:24,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11318 states.
[2023-12-25 18:13:24,818 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 6157.
[2023-12-25 18:13:24,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6157 states, 6156 states have (on average 1.6522092267706303) internal successors, (10171), 6156 states have internal predecessors, (10171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:24,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6157 states to 6157 states and 10171 transitions.
[2023-12-25 18:13:24,830 INFO  L78                 Accepts]: Start accepts. Automaton has 6157 states and 10171 transitions. Word has length 4083
[2023-12-25 18:13:24,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:24,832 INFO  L495      AbstractCegarLoop]: Abstraction has 6157 states and 10171 transitions.
[2023-12-25 18:13:24,832 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 922.5) internal successors, (3690), 4 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:24,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 6157 states and 10171 transitions.
[2023-12-25 18:13:24,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4085
[2023-12-25 18:13:24,922 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:24,923 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:13:24,988 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2023-12-25 18:13:25,144 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:25,145 INFO  L420      AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:25,145 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:25,145 INFO  L85        PathProgramCache]: Analyzing trace with hash -1143486379, now seen corresponding path program 1 times
[2023-12-25 18:13:25,145 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:25,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870957101]
[2023-12-25 18:13:25,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:25,146 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:25,446 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:25,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677365561]
[2023-12-25 18:13:25,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:25,447 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:25,447 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:25,448 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:25,450 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2023-12-25 18:13:30,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:30,242 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19431 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:30,285 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:30,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 42 proven. 184 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:30,732 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:30,775 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked.
[2023-12-25 18:13:30,776 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:30,776 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870957101]
[2023-12-25 18:13:30,776 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:30,776 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677365561]
[2023-12-25 18:13:30,776 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677365561] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:30,776 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:30,776 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:30,777 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032658066]
[2023-12-25 18:13:30,777 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:30,779 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:30,779 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:30,780 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:30,780 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:30,781 INFO  L87              Difference]: Start difference. First operand 6157 states and 10171 transitions. Second operand  has 4 states, 4 states have (on average 923.25) internal successors, (3693), 4 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:30,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:30,932 INFO  L93              Difference]: Finished difference Result 16597 states and 27524 transitions.
[2023-12-25 18:13:30,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:30,933 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 923.25) internal successors, (3693), 4 states have internal predecessors, (3693), 0 states have call successors, (0), 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 4084
[2023-12-25 18:13:30,936 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:30,948 INFO  L225             Difference]: With dead ends: 16597
[2023-12-25 18:13:30,948 INFO  L226             Difference]: Without dead ends: 11319
[2023-12-25 18:13:30,956 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8167 GetRequests, 8158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:30,956 INFO  L413           NwaCegarLoop]: 10026 mSDtfsCounter, 8568 mSDsluCounter, 19039 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8568 SdHoareTripleChecker+Valid, 29065 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:30,956 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8568 Valid, 29065 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:30,966 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11319 states.
[2023-12-25 18:13:31,037 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11319 to 6159.
[2023-12-25 18:13:31,043 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6159 states, 6158 states have (on average 1.6519974017538162) internal successors, (10173), 6158 states have internal predecessors, (10173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:31,051 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6159 states to 6159 states and 10173 transitions.
[2023-12-25 18:13:31,051 INFO  L78                 Accepts]: Start accepts. Automaton has 6159 states and 10173 transitions. Word has length 4084
[2023-12-25 18:13:31,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:31,053 INFO  L495      AbstractCegarLoop]: Abstraction has 6159 states and 10173 transitions.
[2023-12-25 18:13:31,054 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 923.25) internal successors, (3693), 4 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:31,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 6159 states and 10173 transitions.
[2023-12-25 18:13:31,146 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4086
[2023-12-25 18:13:31,146 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:31,147 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:13:31,212 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2023-12-25 18:13:31,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:31,372 INFO  L420      AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:31,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:31,373 INFO  L85        PathProgramCache]: Analyzing trace with hash -581111175, now seen corresponding path program 1 times
[2023-12-25 18:13:31,373 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:31,373 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487203513]
[2023-12-25 18:13:31,373 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:31,373 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:31,777 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:31,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562575582]
[2023-12-25 18:13:31,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:31,778 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:31,778 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:31,780 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:31,782 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2023-12-25 18:13:36,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:36,274 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19434 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:36,320 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:36,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 44 proven. 182 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:36,765 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:36,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2023-12-25 18:13:36,812 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:36,812 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487203513]
[2023-12-25 18:13:36,812 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:36,813 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562575582]
[2023-12-25 18:13:36,813 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562575582] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:36,813 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:36,813 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:36,813 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335314666]
[2023-12-25 18:13:36,814 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:36,816 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:36,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:36,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:36,817 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:36,818 INFO  L87              Difference]: Start difference. First operand 6159 states and 10173 transitions. Second operand  has 4 states, 4 states have (on average 924.0) internal successors, (3696), 4 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:36,971 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:36,971 INFO  L93              Difference]: Finished difference Result 16603 states and 27530 transitions.
[2023-12-25 18:13:36,972 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:36,973 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 924.0) internal successors, (3696), 4 states have internal predecessors, (3696), 0 states have call successors, (0), 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 4085
[2023-12-25 18:13:36,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:36,988 INFO  L225             Difference]: With dead ends: 16603
[2023-12-25 18:13:36,989 INFO  L226             Difference]: Without dead ends: 11320
[2023-12-25 18:13:36,996 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8169 GetRequests, 8160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:36,996 INFO  L413           NwaCegarLoop]: 10021 mSDtfsCounter, 8565 mSDsluCounter, 19034 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8565 SdHoareTripleChecker+Valid, 29055 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:36,996 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8565 Valid, 29055 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:37,006 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11320 states.
[2023-12-25 18:13:37,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11320 to 6161.
[2023-12-25 18:13:37,078 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6161 states, 6160 states have (on average 1.6517857142857142) internal successors, (10175), 6160 states have internal predecessors, (10175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:37,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 10175 transitions.
[2023-12-25 18:13:37,085 INFO  L78                 Accepts]: Start accepts. Automaton has 6161 states and 10175 transitions. Word has length 4085
[2023-12-25 18:13:37,087 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:37,087 INFO  L495      AbstractCegarLoop]: Abstraction has 6161 states and 10175 transitions.
[2023-12-25 18:13:37,088 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 924.0) internal successors, (3696), 4 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:37,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 6161 states and 10175 transitions.
[2023-12-25 18:13:37,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4087
[2023-12-25 18:13:37,266 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:37,267 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:13:37,334 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0
[2023-12-25 18:13:37,485 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:37,486 INFO  L420      AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:37,487 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:37,487 INFO  L85        PathProgramCache]: Analyzing trace with hash 177550715, now seen corresponding path program 1 times
[2023-12-25 18:13:37,487 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:37,487 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837257415]
[2023-12-25 18:13:37,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:37,488 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:37,786 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:37,786 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60846533]
[2023-12-25 18:13:37,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:37,787 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:37,787 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:37,788 INFO  L229       MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:37,789 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2023-12-25 18:13:42,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:42,225 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19437 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 18:13:42,267 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:42,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 46 proven. 180 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:42,660 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:42,716 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked.
[2023-12-25 18:13:42,716 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:42,716 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837257415]
[2023-12-25 18:13:42,716 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:42,716 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60846533]
[2023-12-25 18:13:42,716 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [60846533] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:42,716 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:42,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 18:13:42,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939146283]
[2023-12-25 18:13:42,717 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:42,719 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:13:42,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:42,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:13:42,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:13:42,721 INFO  L87              Difference]: Start difference. First operand 6161 states and 10175 transitions. Second operand  has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:43,091 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:43,091 INFO  L93              Difference]: Finished difference Result 21893 states and 36316 transitions.
[2023-12-25 18:13:43,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 18:13:43,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 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 4086
[2023-12-25 18:13:43,095 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:43,113 INFO  L225             Difference]: With dead ends: 21893
[2023-12-25 18:13:43,113 INFO  L226             Difference]: Without dead ends: 16605
[2023-12-25 18:13:43,122 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8172 GetRequests, 8160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182
[2023-12-25 18:13:43,123 INFO  L413           NwaCegarLoop]: 18645 mSDtfsCounter, 17191 mSDsluCounter, 46297 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17191 SdHoareTripleChecker+Valid, 64942 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:43,123 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17191 Valid, 64942 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:43,135 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16605 states.
[2023-12-25 18:13:43,215 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16605 to 6163.
[2023-12-25 18:13:43,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6163 states, 6162 states have (on average 1.651574164232392) internal successors, (10177), 6162 states have internal predecessors, (10177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:43,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6163 states to 6163 states and 10177 transitions.
[2023-12-25 18:13:43,228 INFO  L78                 Accepts]: Start accepts. Automaton has 6163 states and 10177 transitions. Word has length 4086
[2023-12-25 18:13:43,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:43,230 INFO  L495      AbstractCegarLoop]: Abstraction has 6163 states and 10177 transitions.
[2023-12-25 18:13:43,230 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 739.8) internal successors, (3699), 5 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:43,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 6163 states and 10177 transitions.
[2023-12-25 18:13:43,319 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4088
[2023-12-25 18:13:43,319 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:43,320 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:13:43,394 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2023-12-25 18:13:43,529 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93
[2023-12-25 18:13:43,529 INFO  L420      AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:43,529 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:43,530 INFO  L85        PathProgramCache]: Analyzing trace with hash 803171925, now seen corresponding path program 1 times
[2023-12-25 18:13:43,530 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:43,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973587012]
[2023-12-25 18:13:43,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:43,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:43,886 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:43,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384352049]
[2023-12-25 18:13:43,887 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:43,887 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:43,887 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:43,888 INFO  L229       MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:43,889 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2023-12-25 18:13:48,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:48,439 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19441 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:48,535 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:49,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 48 proven. 178 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:49,278 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:49,326 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked.
[2023-12-25 18:13:49,327 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:49,327 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973587012]
[2023-12-25 18:13:49,327 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:49,327 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384352049]
[2023-12-25 18:13:49,327 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384352049] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:49,327 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:49,327 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:49,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758530690]
[2023-12-25 18:13:49,328 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:49,330 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:49,330 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:49,331 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:49,331 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:49,332 INFO  L87              Difference]: Start difference. First operand 6163 states and 10177 transitions. Second operand  has 4 states, 4 states have (on average 925.5) internal successors, (3702), 4 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:49,489 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:49,489 INFO  L93              Difference]: Finished difference Result 16615 states and 27542 transitions.
[2023-12-25 18:13:49,490 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:49,491 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 925.5) internal successors, (3702), 4 states have internal predecessors, (3702), 0 states have call successors, (0), 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 4087
[2023-12-25 18:13:49,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:49,505 INFO  L225             Difference]: With dead ends: 16615
[2023-12-25 18:13:49,505 INFO  L226             Difference]: Without dead ends: 11322
[2023-12-25 18:13:49,511 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8173 GetRequests, 8164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:49,511 INFO  L413           NwaCegarLoop]: 10011 mSDtfsCounter, 8559 mSDsluCounter, 19024 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8559 SdHoareTripleChecker+Valid, 29035 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:49,512 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8559 Valid, 29035 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:49,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11322 states.
[2023-12-25 18:13:49,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 6165.
[2023-12-25 18:13:49,584 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6165 states, 6164 states have (on average 1.6513627514600908) internal successors, (10179), 6164 states have internal predecessors, (10179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:49,591 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6165 states to 6165 states and 10179 transitions.
[2023-12-25 18:13:49,591 INFO  L78                 Accepts]: Start accepts. Automaton has 6165 states and 10179 transitions. Word has length 4087
[2023-12-25 18:13:49,593 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:49,593 INFO  L495      AbstractCegarLoop]: Abstraction has 6165 states and 10179 transitions.
[2023-12-25 18:13:49,594 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 925.5) internal successors, (3702), 4 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:49,594 INFO  L276                IsEmpty]: Start isEmpty. Operand 6165 states and 10179 transitions.
[2023-12-25 18:13:49,684 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4089
[2023-12-25 18:13:49,684 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:49,685 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:13:49,755 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0
[2023-12-25 18:13:49,905 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:49,906 INFO  L420      AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:49,906 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:49,906 INFO  L85        PathProgramCache]: Analyzing trace with hash -241241437, now seen corresponding path program 1 times
[2023-12-25 18:13:49,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:49,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684549223]
[2023-12-25 18:13:49,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:49,907 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:50,308 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:50,309 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830818253]
[2023-12-25 18:13:50,310 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:50,310 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:50,310 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:50,313 INFO  L229       MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:50,314 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2023-12-25 18:13:55,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:13:55,928 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19444 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:13:55,976 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:13:56,550 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 50 proven. 176 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:13:56,550 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:13:56,596 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-25 18:13:56,597 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:13:56,597 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684549223]
[2023-12-25 18:13:56,597 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:13:56,597 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830818253]
[2023-12-25 18:13:56,597 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830818253] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:13:56,597 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:13:56,598 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:13:56,598 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029044356]
[2023-12-25 18:13:56,598 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:13:56,600 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:13:56,600 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:13:56,601 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:13:56,602 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:13:56,602 INFO  L87              Difference]: Start difference. First operand 6165 states and 10179 transitions. Second operand  has 4 states, 4 states have (on average 926.25) internal successors, (3705), 4 states have internal predecessors, (3705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:56,752 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:13:56,752 INFO  L93              Difference]: Finished difference Result 16621 states and 27548 transitions.
[2023-12-25 18:13:56,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:13:56,753 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 926.25) internal successors, (3705), 4 states have internal predecessors, (3705), 0 states have call successors, (0), 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 4088
[2023-12-25 18:13:56,756 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:13:56,768 INFO  L225             Difference]: With dead ends: 16621
[2023-12-25 18:13:56,768 INFO  L226             Difference]: Without dead ends: 11323
[2023-12-25 18:13:56,774 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8175 GetRequests, 8166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:13:56,775 INFO  L413           NwaCegarLoop]: 10006 mSDtfsCounter, 8556 mSDsluCounter, 19019 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8556 SdHoareTripleChecker+Valid, 29025 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:13:56,775 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8556 Valid, 29025 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:13:56,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11323 states.
[2023-12-25 18:13:56,854 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11323 to 6167.
[2023-12-25 18:13:56,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6167 states, 6166 states have (on average 1.6511514758352255) internal successors, (10181), 6166 states have internal predecessors, (10181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:56,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6167 states to 6167 states and 10181 transitions.
[2023-12-25 18:13:56,868 INFO  L78                 Accepts]: Start accepts. Automaton has 6167 states and 10181 transitions. Word has length 4088
[2023-12-25 18:13:56,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:13:56,870 INFO  L495      AbstractCegarLoop]: Abstraction has 6167 states and 10181 transitions.
[2023-12-25 18:13:56,871 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 926.25) internal successors, (3705), 4 states have internal predecessors, (3705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:13:56,871 INFO  L276                IsEmpty]: Start isEmpty. Operand 6167 states and 10181 transitions.
[2023-12-25 18:13:56,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4090
[2023-12-25 18:13:56,991 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:13:56,992 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:13:57,060 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0
[2023-12-25 18:13:57,216 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:57,217 INFO  L420      AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:13:57,218 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:13:57,218 INFO  L85        PathProgramCache]: Analyzing trace with hash -2046547409, now seen corresponding path program 1 times
[2023-12-25 18:13:57,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:13:57,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893569626]
[2023-12-25 18:13:57,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:57,218 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:13:57,521 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:13:57,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102315712]
[2023-12-25 18:13:57,522 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:13:57,522 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:13:57,522 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:13:57,523 INFO  L229       MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:13:57,542 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2023-12-25 18:14:01,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:02,005 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19447 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:02,079 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:02,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 52 proven. 174 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:02,634 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:02,681 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked.
[2023-12-25 18:14:02,681 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:02,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893569626]
[2023-12-25 18:14:02,681 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:02,682 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102315712]
[2023-12-25 18:14:02,682 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102315712] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:02,682 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:02,682 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:02,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582304767]
[2023-12-25 18:14:02,682 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:02,685 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:02,685 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:02,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:02,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:02,687 INFO  L87              Difference]: Start difference. First operand 6167 states and 10181 transitions. Second operand  has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:02,843 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:02,843 INFO  L93              Difference]: Finished difference Result 16627 states and 27554 transitions.
[2023-12-25 18:14:02,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:02,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 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 4089
[2023-12-25 18:14:02,847 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:02,858 INFO  L225             Difference]: With dead ends: 16627
[2023-12-25 18:14:02,858 INFO  L226             Difference]: Without dead ends: 11324
[2023-12-25 18:14:02,865 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8177 GetRequests, 8168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:02,865 INFO  L413           NwaCegarLoop]: 10001 mSDtfsCounter, 8553 mSDsluCounter, 19014 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8553 SdHoareTripleChecker+Valid, 29015 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:02,865 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8553 Valid, 29015 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:02,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11324 states.
[2023-12-25 18:14:02,937 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11324 to 6169.
[2023-12-25 18:14:02,943 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6169 states, 6168 states have (on average 1.6509403372243838) internal successors, (10183), 6168 states have internal predecessors, (10183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:02,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6169 states to 6169 states and 10183 transitions.
[2023-12-25 18:14:02,950 INFO  L78                 Accepts]: Start accepts. Automaton has 6169 states and 10183 transitions. Word has length 4089
[2023-12-25 18:14:02,952 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:02,952 INFO  L495      AbstractCegarLoop]: Abstraction has 6169 states and 10183 transitions.
[2023-12-25 18:14:02,953 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:02,953 INFO  L276                IsEmpty]: Start isEmpty. Operand 6169 states and 10183 transitions.
[2023-12-25 18:14:03,041 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4091
[2023-12-25 18:14:03,041 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:03,042 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:14:03,117 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2023-12-25 18:14:03,256 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:03,256 INFO  L420      AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:03,256 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:03,257 INFO  L85        PathProgramCache]: Analyzing trace with hash 1515733961, now seen corresponding path program 1 times
[2023-12-25 18:14:03,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:03,257 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489582042]
[2023-12-25 18:14:03,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:03,257 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:03,570 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:03,571 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667118018]
[2023-12-25 18:14:03,572 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:03,572 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:03,572 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:03,574 INFO  L229       MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:03,575 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2023-12-25 18:14:08,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:08,291 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19450 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:08,335 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:08,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 54 proven. 172 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:08,788 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:08,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked.
[2023-12-25 18:14:08,834 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:08,834 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489582042]
[2023-12-25 18:14:08,835 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:08,835 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667118018]
[2023-12-25 18:14:08,835 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667118018] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:08,835 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:08,835 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:08,835 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986436262]
[2023-12-25 18:14:08,835 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:08,838 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:08,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:08,839 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:08,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:08,840 INFO  L87              Difference]: Start difference. First operand 6169 states and 10183 transitions. Second operand  has 4 states, 4 states have (on average 927.75) internal successors, (3711), 4 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:09,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:09,106 INFO  L93              Difference]: Finished difference Result 16633 states and 27560 transitions.
[2023-12-25 18:14:09,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:09,107 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 927.75) internal successors, (3711), 4 states have internal predecessors, (3711), 0 states have call successors, (0), 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 4090
[2023-12-25 18:14:09,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:09,117 INFO  L225             Difference]: With dead ends: 16633
[2023-12-25 18:14:09,117 INFO  L226             Difference]: Without dead ends: 11325
[2023-12-25 18:14:09,121 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8179 GetRequests, 8170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:09,121 INFO  L413           NwaCegarLoop]: 9996 mSDtfsCounter, 8550 mSDsluCounter, 19009 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8550 SdHoareTripleChecker+Valid, 29005 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:09,121 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8550 Valid, 29005 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:09,128 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11325 states.
[2023-12-25 18:14:09,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11325 to 6171.
[2023-12-25 18:14:09,191 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6171 states, 6170 states have (on average 1.6507293354943273) internal successors, (10185), 6170 states have internal predecessors, (10185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:09,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6171 states to 6171 states and 10185 transitions.
[2023-12-25 18:14:09,198 INFO  L78                 Accepts]: Start accepts. Automaton has 6171 states and 10185 transitions. Word has length 4090
[2023-12-25 18:14:09,200 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:09,200 INFO  L495      AbstractCegarLoop]: Abstraction has 6171 states and 10185 transitions.
[2023-12-25 18:14:09,201 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 927.75) internal successors, (3711), 4 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:09,201 INFO  L276                IsEmpty]: Start isEmpty. Operand 6171 states and 10185 transitions.
[2023-12-25 18:14:09,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4092
[2023-12-25 18:14:09,291 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:09,292 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:09,357 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0
[2023-12-25 18:14:09,508 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97
[2023-12-25 18:14:09,509 INFO  L420      AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:09,509 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:09,509 INFO  L85        PathProgramCache]: Analyzing trace with hash 2122903307, now seen corresponding path program 1 times
[2023-12-25 18:14:09,509 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:09,509 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448794070]
[2023-12-25 18:14:09,510 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:09,510 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:09,805 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:09,805 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441656815]
[2023-12-25 18:14:09,806 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:09,806 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:09,806 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:09,807 INFO  L229       MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:09,809 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2023-12-25 18:14:14,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:14,267 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19454 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:14,311 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:14,787 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 56 proven. 170 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:14,787 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:14,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked.
[2023-12-25 18:14:14,958 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:14,958 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448794070]
[2023-12-25 18:14:14,958 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:14,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441656815]
[2023-12-25 18:14:14,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [441656815] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:14,959 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:14,959 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:14,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701493495]
[2023-12-25 18:14:14,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:14,966 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:14,967 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:14,968 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:14,968 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:14,969 INFO  L87              Difference]: Start difference. First operand 6171 states and 10185 transitions. Second operand  has 4 states, 4 states have (on average 928.5) internal successors, (3714), 4 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:15,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:15,120 INFO  L93              Difference]: Finished difference Result 16639 states and 27566 transitions.
[2023-12-25 18:14:15,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:15,121 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 928.5) internal successors, (3714), 4 states have internal predecessors, (3714), 0 states have call successors, (0), 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 4091
[2023-12-25 18:14:15,123 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:15,133 INFO  L225             Difference]: With dead ends: 16639
[2023-12-25 18:14:15,133 INFO  L226             Difference]: Without dead ends: 11326
[2023-12-25 18:14:15,139 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8181 GetRequests, 8172 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:15,139 INFO  L413           NwaCegarLoop]: 9991 mSDtfsCounter, 8547 mSDsluCounter, 19004 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8547 SdHoareTripleChecker+Valid, 28995 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:15,139 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8547 Valid, 28995 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:15,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11326 states.
[2023-12-25 18:14:15,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 6173.
[2023-12-25 18:14:15,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6173 states, 6172 states have (on average 1.6505184705119895) internal successors, (10187), 6172 states have internal predecessors, (10187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:15,218 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6173 states to 6173 states and 10187 transitions.
[2023-12-25 18:14:15,218 INFO  L78                 Accepts]: Start accepts. Automaton has 6173 states and 10187 transitions. Word has length 4091
[2023-12-25 18:14:15,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:15,220 INFO  L495      AbstractCegarLoop]: Abstraction has 6173 states and 10187 transitions.
[2023-12-25 18:14:15,221 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 928.5) internal successors, (3714), 4 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:15,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 6173 states and 10187 transitions.
[2023-12-25 18:14:15,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4093
[2023-12-25 18:14:15,310 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:15,311 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:14:15,377 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0
[2023-12-25 18:14:15,524 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:15,524 INFO  L420      AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:15,525 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:15,525 INFO  L85        PathProgramCache]: Analyzing trace with hash 419738097, now seen corresponding path program 1 times
[2023-12-25 18:14:15,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:15,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187211429]
[2023-12-25 18:14:15,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:15,526 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:15,817 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:15,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278028517]
[2023-12-25 18:14:15,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:15,818 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:15,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:15,819 INFO  L229       MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:15,821 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2023-12-25 18:14:20,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:20,278 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19457 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:20,324 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:20,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 58 proven. 168 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:20,773 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:20,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked.
[2023-12-25 18:14:20,970 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:20,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187211429]
[2023-12-25 18:14:20,970 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:20,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278028517]
[2023-12-25 18:14:20,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278028517] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:20,970 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:20,971 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:20,971 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301627296]
[2023-12-25 18:14:20,971 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:20,973 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:20,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:20,975 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:20,975 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:20,975 INFO  L87              Difference]: Start difference. First operand 6173 states and 10187 transitions. Second operand  has 4 states, 4 states have (on average 929.25) internal successors, (3717), 4 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:21,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:21,127 INFO  L93              Difference]: Finished difference Result 16645 states and 27572 transitions.
[2023-12-25 18:14:21,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:21,128 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 929.25) internal successors, (3717), 4 states have internal predecessors, (3717), 0 states have call successors, (0), 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 4092
[2023-12-25 18:14:21,131 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:21,143 INFO  L225             Difference]: With dead ends: 16645
[2023-12-25 18:14:21,144 INFO  L226             Difference]: Without dead ends: 11327
[2023-12-25 18:14:21,151 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8183 GetRequests, 8174 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:21,151 INFO  L413           NwaCegarLoop]: 9986 mSDtfsCounter, 8544 mSDsluCounter, 18999 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8544 SdHoareTripleChecker+Valid, 28985 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:21,151 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8544 Valid, 28985 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:21,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11327 states.
[2023-12-25 18:14:21,225 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11327 to 6175.
[2023-12-25 18:14:21,230 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6175 states, 6174 states have (on average 1.6503077421444767) internal successors, (10189), 6174 states have internal predecessors, (10189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:21,236 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6175 states to 6175 states and 10189 transitions.
[2023-12-25 18:14:21,237 INFO  L78                 Accepts]: Start accepts. Automaton has 6175 states and 10189 transitions. Word has length 4092
[2023-12-25 18:14:21,239 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:21,239 INFO  L495      AbstractCegarLoop]: Abstraction has 6175 states and 10189 transitions.
[2023-12-25 18:14:21,240 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 929.25) internal successors, (3717), 4 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:21,240 INFO  L276                IsEmpty]: Start isEmpty. Operand 6175 states and 10189 transitions.
[2023-12-25 18:14:21,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4094
[2023-12-25 18:14:21,328 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:21,329 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:21,391 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0
[2023-12-25 18:14:21,544 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:21,545 INFO  L420      AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:21,545 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:21,545 INFO  L85        PathProgramCache]: Analyzing trace with hash 248063717, now seen corresponding path program 1 times
[2023-12-25 18:14:21,545 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:21,546 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395838462]
[2023-12-25 18:14:21,546 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:21,546 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:21,882 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:21,882 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167027601]
[2023-12-25 18:14:21,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:21,883 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:21,883 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:21,884 INFO  L229       MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:21,886 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process
[2023-12-25 18:14:26,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:26,634 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19460 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:26,676 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:27,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 60 proven. 166 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:27,227 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:27,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked.
[2023-12-25 18:14:27,292 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:27,292 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395838462]
[2023-12-25 18:14:27,292 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:27,292 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167027601]
[2023-12-25 18:14:27,292 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [167027601] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:27,292 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:27,293 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:27,293 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415075313]
[2023-12-25 18:14:27,293 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:27,295 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:27,295 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:27,297 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:27,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:27,297 INFO  L87              Difference]: Start difference. First operand 6175 states and 10189 transitions. Second operand  has 4 states, 4 states have (on average 930.0) internal successors, (3720), 4 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:27,445 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:27,445 INFO  L93              Difference]: Finished difference Result 16651 states and 27578 transitions.
[2023-12-25 18:14:27,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:27,446 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 930.0) internal successors, (3720), 4 states have internal predecessors, (3720), 0 states have call successors, (0), 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 4093
[2023-12-25 18:14:27,448 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:27,459 INFO  L225             Difference]: With dead ends: 16651
[2023-12-25 18:14:27,459 INFO  L226             Difference]: Without dead ends: 11328
[2023-12-25 18:14:27,465 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8185 GetRequests, 8176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:27,467 INFO  L413           NwaCegarLoop]: 9981 mSDtfsCounter, 8541 mSDsluCounter, 18994 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8541 SdHoareTripleChecker+Valid, 28975 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:27,467 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8541 Valid, 28975 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:27,476 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11328 states.
[2023-12-25 18:14:27,580 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11328 to 6177.
[2023-12-25 18:14:27,585 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6177 states, 6176 states have (on average 1.6500971502590673) internal successors, (10191), 6176 states have internal predecessors, (10191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:27,590 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6177 states to 6177 states and 10191 transitions.
[2023-12-25 18:14:27,590 INFO  L78                 Accepts]: Start accepts. Automaton has 6177 states and 10191 transitions. Word has length 4093
[2023-12-25 18:14:27,592 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:27,592 INFO  L495      AbstractCegarLoop]: Abstraction has 6177 states and 10191 transitions.
[2023-12-25 18:14:27,592 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 930.0) internal successors, (3720), 4 states have internal predecessors, (3720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:27,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 6177 states and 10191 transitions.
[2023-12-25 18:14:27,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4095
[2023-12-25 18:14:27,680 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:27,681 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:14:27,740 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0
[2023-12-25 18:14:27,908 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100
[2023-12-25 18:14:27,909 INFO  L420      AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:27,909 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:27,909 INFO  L85        PathProgramCache]: Analyzing trace with hash 1795516183, now seen corresponding path program 1 times
[2023-12-25 18:14:27,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:27,909 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220962429]
[2023-12-25 18:14:27,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:27,910 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:28,183 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:28,183 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119439674]
[2023-12-25 18:14:28,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:28,184 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:28,184 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:28,185 INFO  L229       MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:28,185 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process
[2023-12-25 18:14:32,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:32,836 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19463 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:32,878 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:33,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 62 proven. 164 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:33,335 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:33,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2023-12-25 18:14:33,381 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:33,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220962429]
[2023-12-25 18:14:33,381 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:33,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119439674]
[2023-12-25 18:14:33,381 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [119439674] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:33,381 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:33,382 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:33,382 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926282870]
[2023-12-25 18:14:33,382 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:33,384 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:33,385 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:33,386 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:33,386 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:33,387 INFO  L87              Difference]: Start difference. First operand 6177 states and 10191 transitions. Second operand  has 4 states, 4 states have (on average 930.75) internal successors, (3723), 4 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:33,613 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:33,613 INFO  L93              Difference]: Finished difference Result 16657 states and 27584 transitions.
[2023-12-25 18:14:33,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:33,614 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 930.75) internal successors, (3723), 4 states have internal predecessors, (3723), 0 states have call successors, (0), 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 4094
[2023-12-25 18:14:33,617 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:33,626 INFO  L225             Difference]: With dead ends: 16657
[2023-12-25 18:14:33,627 INFO  L226             Difference]: Without dead ends: 11329
[2023-12-25 18:14:33,631 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8187 GetRequests, 8178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:33,632 INFO  L413           NwaCegarLoop]: 9976 mSDtfsCounter, 8538 mSDsluCounter, 18989 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8538 SdHoareTripleChecker+Valid, 28965 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:33,632 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8538 Valid, 28965 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:33,640 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11329 states.
[2023-12-25 18:14:33,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11329 to 6179.
[2023-12-25 18:14:33,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6179 states, 6178 states have (on average 1.6498866947232114) internal successors, (10193), 6178 states have internal predecessors, (10193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:33,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6179 states to 6179 states and 10193 transitions.
[2023-12-25 18:14:33,719 INFO  L78                 Accepts]: Start accepts. Automaton has 6179 states and 10193 transitions. Word has length 4094
[2023-12-25 18:14:33,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:33,721 INFO  L495      AbstractCegarLoop]: Abstraction has 6179 states and 10193 transitions.
[2023-12-25 18:14:33,722 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 930.75) internal successors, (3723), 4 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:33,722 INFO  L276                IsEmpty]: Start isEmpty. Operand 6179 states and 10193 transitions.
[2023-12-25 18:14:33,810 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4096
[2023-12-25 18:14:33,810 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:33,811 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:33,874 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0
[2023-12-25 18:14:34,024 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101
[2023-12-25 18:14:34,024 INFO  L420      AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:34,025 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:34,025 INFO  L85        PathProgramCache]: Analyzing trace with hash -1722207039, now seen corresponding path program 1 times
[2023-12-25 18:14:34,025 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:34,025 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16805419]
[2023-12-25 18:14:34,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:34,025 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:34,318 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:34,318 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662277644]
[2023-12-25 18:14:34,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:34,319 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:34,320 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:34,320 INFO  L229       MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:34,322 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process
[2023-12-25 18:14:38,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:39,017 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19467 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:39,062 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:39,664 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 64 proven. 162 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:39,665 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:39,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked.
[2023-12-25 18:14:39,712 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:39,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16805419]
[2023-12-25 18:14:39,712 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:39,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662277644]
[2023-12-25 18:14:39,712 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662277644] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:39,712 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:39,712 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:39,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794974441]
[2023-12-25 18:14:39,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:39,715 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:39,715 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:39,716 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:39,728 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:39,729 INFO  L87              Difference]: Start difference. First operand 6179 states and 10193 transitions. Second operand  has 4 states, 4 states have (on average 931.5) internal successors, (3726), 4 states have internal predecessors, (3726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:39,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:39,881 INFO  L93              Difference]: Finished difference Result 16663 states and 27590 transitions.
[2023-12-25 18:14:39,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:39,882 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 931.5) internal successors, (3726), 4 states have internal predecessors, (3726), 0 states have call successors, (0), 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 4095
[2023-12-25 18:14:39,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:39,895 INFO  L225             Difference]: With dead ends: 16663
[2023-12-25 18:14:39,895 INFO  L226             Difference]: Without dead ends: 11330
[2023-12-25 18:14:39,902 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8189 GetRequests, 8180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:39,902 INFO  L413           NwaCegarLoop]: 9971 mSDtfsCounter, 8535 mSDsluCounter, 18984 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8535 SdHoareTripleChecker+Valid, 28955 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:39,902 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8535 Valid, 28955 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:39,912 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11330 states.
[2023-12-25 18:14:39,978 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11330 to 6181.
[2023-12-25 18:14:39,983 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6181 states, 6180 states have (on average 1.6496763754045307) internal successors, (10195), 6180 states have internal predecessors, (10195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:39,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6181 states to 6181 states and 10195 transitions.
[2023-12-25 18:14:39,990 INFO  L78                 Accepts]: Start accepts. Automaton has 6181 states and 10195 transitions. Word has length 4095
[2023-12-25 18:14:39,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:39,992 INFO  L495      AbstractCegarLoop]: Abstraction has 6181 states and 10195 transitions.
[2023-12-25 18:14:39,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 931.5) internal successors, (3726), 4 states have internal predecessors, (3726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:39,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 6181 states and 10195 transitions.
[2023-12-25 18:14:40,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4097
[2023-12-25 18:14:40,081 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:40,082 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:40,141 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0
[2023-12-25 18:14:40,290 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102
[2023-12-25 18:14:40,290 INFO  L420      AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:40,290 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:40,291 INFO  L85        PathProgramCache]: Analyzing trace with hash -109803969, now seen corresponding path program 1 times
[2023-12-25 18:14:40,291 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:40,291 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943714500]
[2023-12-25 18:14:40,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:40,291 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:40,615 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:40,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520810746]
[2023-12-25 18:14:40,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:40,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:40,616 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:40,617 INFO  L229       MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:40,620 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process
[2023-12-25 18:14:44,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:45,019 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19470 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:45,064 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:45,655 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 66 proven. 160 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:45,655 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:45,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked.
[2023-12-25 18:14:45,701 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:45,701 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943714500]
[2023-12-25 18:14:45,701 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:45,701 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520810746]
[2023-12-25 18:14:45,701 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520810746] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:45,701 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:45,702 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:45,702 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176645845]
[2023-12-25 18:14:45,702 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:45,704 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:45,704 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:45,706 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:45,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:45,706 INFO  L87              Difference]: Start difference. First operand 6181 states and 10195 transitions. Second operand  has 4 states, 4 states have (on average 932.25) internal successors, (3729), 4 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:45,854 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:45,855 INFO  L93              Difference]: Finished difference Result 16669 states and 27596 transitions.
[2023-12-25 18:14:45,855 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:45,856 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 932.25) internal successors, (3729), 4 states have internal predecessors, (3729), 0 states have call successors, (0), 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 4096
[2023-12-25 18:14:45,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:45,868 INFO  L225             Difference]: With dead ends: 16669
[2023-12-25 18:14:45,868 INFO  L226             Difference]: Without dead ends: 11331
[2023-12-25 18:14:45,874 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8191 GetRequests, 8182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:45,874 INFO  L413           NwaCegarLoop]: 9966 mSDtfsCounter, 8532 mSDsluCounter, 18979 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8532 SdHoareTripleChecker+Valid, 28945 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:45,874 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8532 Valid, 28945 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:45,881 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11331 states.
[2023-12-25 18:14:45,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11331 to 6183.
[2023-12-25 18:14:45,945 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6183 states, 6182 states have (on average 1.6494661921708185) internal successors, (10197), 6182 states have internal predecessors, (10197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:45,951 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 10197 transitions.
[2023-12-25 18:14:45,951 INFO  L78                 Accepts]: Start accepts. Automaton has 6183 states and 10197 transitions. Word has length 4096
[2023-12-25 18:14:45,953 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:45,953 INFO  L495      AbstractCegarLoop]: Abstraction has 6183 states and 10197 transitions.
[2023-12-25 18:14:45,954 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 932.25) internal successors, (3729), 4 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:45,954 INFO  L276                IsEmpty]: Start isEmpty. Operand 6183 states and 10197 transitions.
[2023-12-25 18:14:46,042 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4098
[2023-12-25 18:14:46,042 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:46,043 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:46,100 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0
[2023-12-25 18:14:46,255 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103
[2023-12-25 18:14:46,256 INFO  L420      AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:46,256 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:46,256 INFO  L85        PathProgramCache]: Analyzing trace with hash 988375195, now seen corresponding path program 1 times
[2023-12-25 18:14:46,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:46,257 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158701036]
[2023-12-25 18:14:46,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:46,257 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:46,619 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:46,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976587351]
[2023-12-25 18:14:46,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:46,620 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:46,620 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:46,621 INFO  L229       MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:46,645 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process
[2023-12-25 18:14:50,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:50,958 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19473 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:51,001 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:51,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 68 proven. 158 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:51,448 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:51,493 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked.
[2023-12-25 18:14:51,493 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:51,493 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158701036]
[2023-12-25 18:14:51,493 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:51,493 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976587351]
[2023-12-25 18:14:51,493 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [976587351] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:51,493 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:51,494 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:51,494 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716981828]
[2023-12-25 18:14:51,494 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:51,496 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:51,496 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:51,498 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:51,498 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:51,498 INFO  L87              Difference]: Start difference. First operand 6183 states and 10197 transitions. Second operand  has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:51,758 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:51,758 INFO  L93              Difference]: Finished difference Result 16675 states and 27602 transitions.
[2023-12-25 18:14:51,758 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:51,759 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 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 4097
[2023-12-25 18:14:51,761 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:51,771 INFO  L225             Difference]: With dead ends: 16675
[2023-12-25 18:14:51,771 INFO  L226             Difference]: Without dead ends: 11332
[2023-12-25 18:14:51,777 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8193 GetRequests, 8184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:51,778 INFO  L413           NwaCegarLoop]: 9961 mSDtfsCounter, 8529 mSDsluCounter, 18974 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8529 SdHoareTripleChecker+Valid, 28935 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:51,778 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8529 Valid, 28935 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:51,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11332 states.
[2023-12-25 18:14:51,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11332 to 6185.
[2023-12-25 18:14:51,872 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6185 states, 6184 states have (on average 1.649256144890039) internal successors, (10199), 6184 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:51,880 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6185 states to 6185 states and 10199 transitions.
[2023-12-25 18:14:51,880 INFO  L78                 Accepts]: Start accepts. Automaton has 6185 states and 10199 transitions. Word has length 4097
[2023-12-25 18:14:51,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:51,882 INFO  L495      AbstractCegarLoop]: Abstraction has 6185 states and 10199 transitions.
[2023-12-25 18:14:51,883 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 933.0) internal successors, (3732), 4 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:51,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 6185 states and 10199 transitions.
[2023-12-25 18:14:51,972 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4099
[2023-12-25 18:14:51,972 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:51,973 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:52,039 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0
[2023-12-25 18:14:52,196 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:52,196 INFO  L420      AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:52,197 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:52,197 INFO  L85        PathProgramCache]: Analyzing trace with hash 302522213, now seen corresponding path program 1 times
[2023-12-25 18:14:52,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:52,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277852618]
[2023-12-25 18:14:52,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:52,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:52,472 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:52,472 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684183817]
[2023-12-25 18:14:52,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:52,473 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:52,473 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:52,476 INFO  L229       MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:52,477 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process
[2023-12-25 18:14:57,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:14:57,151 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19476 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:14:57,196 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:14:57,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 70 proven. 156 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:14:57,600 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:14:57,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2023-12-25 18:14:57,646 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:14:57,646 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277852618]
[2023-12-25 18:14:57,646 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:14:57,646 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684183817]
[2023-12-25 18:14:57,646 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [684183817] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:14:57,646 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:14:57,647 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:14:57,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781179853]
[2023-12-25 18:14:57,647 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:14:57,649 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:14:57,650 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:14:57,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:14:57,651 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:14:57,652 INFO  L87              Difference]: Start difference. First operand 6185 states and 10199 transitions. Second operand  has 4 states, 4 states have (on average 933.75) internal successors, (3735), 4 states have internal predecessors, (3735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:57,804 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:14:57,804 INFO  L93              Difference]: Finished difference Result 16681 states and 27608 transitions.
[2023-12-25 18:14:57,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:14:57,806 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 933.75) internal successors, (3735), 4 states have internal predecessors, (3735), 0 states have call successors, (0), 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 4098
[2023-12-25 18:14:57,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:14:57,819 INFO  L225             Difference]: With dead ends: 16681
[2023-12-25 18:14:57,820 INFO  L226             Difference]: Without dead ends: 11333
[2023-12-25 18:14:57,827 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8195 GetRequests, 8186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:14:57,827 INFO  L413           NwaCegarLoop]: 9956 mSDtfsCounter, 8526 mSDsluCounter, 18969 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8526 SdHoareTripleChecker+Valid, 28925 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:14:57,827 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8526 Valid, 28925 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:14:57,836 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11333 states.
[2023-12-25 18:14:57,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11333 to 6187.
[2023-12-25 18:14:57,904 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6187 states, 6186 states have (on average 1.6490462334303266) internal successors, (10201), 6186 states have internal predecessors, (10201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:57,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6187 states to 6187 states and 10201 transitions.
[2023-12-25 18:14:57,911 INFO  L78                 Accepts]: Start accepts. Automaton has 6187 states and 10201 transitions. Word has length 4098
[2023-12-25 18:14:57,913 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:14:57,913 INFO  L495      AbstractCegarLoop]: Abstraction has 6187 states and 10201 transitions.
[2023-12-25 18:14:57,914 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 933.75) internal successors, (3735), 4 states have internal predecessors, (3735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:14:57,914 INFO  L276                IsEmpty]: Start isEmpty. Operand 6187 states and 10201 transitions.
[2023-12-25 18:14:58,087 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4100
[2023-12-25 18:14:58,087 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:14:58,088 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:14:58,159 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0
[2023-12-25 18:14:58,292 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105
[2023-12-25 18:14:58,293 INFO  L420      AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:14:58,293 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:14:58,294 INFO  L85        PathProgramCache]: Analyzing trace with hash -1026703497, now seen corresponding path program 1 times
[2023-12-25 18:14:58,294 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:14:58,294 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182742613]
[2023-12-25 18:14:58,294 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:58,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:14:58,689 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:14:58,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975983183]
[2023-12-25 18:14:58,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:14:58,691 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:14:58,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:14:58,693 INFO  L229       MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:14:58,695 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process
[2023-12-25 18:15:02,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:03,097 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19480 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:03,143 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:03,545 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 72 proven. 154 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:03,546 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:03,587 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked.
[2023-12-25 18:15:03,587 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:03,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182742613]
[2023-12-25 18:15:03,587 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:03,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975983183]
[2023-12-25 18:15:03,587 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [975983183] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:03,588 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:03,588 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:03,588 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039905341]
[2023-12-25 18:15:03,588 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:03,590 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:03,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:03,592 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:03,592 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:03,592 INFO  L87              Difference]: Start difference. First operand 6187 states and 10201 transitions. Second operand  has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:03,733 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:03,734 INFO  L93              Difference]: Finished difference Result 16687 states and 27614 transitions.
[2023-12-25 18:15:03,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:03,735 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 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 4099
[2023-12-25 18:15:03,737 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:03,746 INFO  L225             Difference]: With dead ends: 16687
[2023-12-25 18:15:03,746 INFO  L226             Difference]: Without dead ends: 11334
[2023-12-25 18:15:03,751 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8197 GetRequests, 8188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:03,751 INFO  L413           NwaCegarLoop]: 9951 mSDtfsCounter, 8523 mSDsluCounter, 18964 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8523 SdHoareTripleChecker+Valid, 28915 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:03,751 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8523 Valid, 28915 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:03,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11334 states.
[2023-12-25 18:15:03,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 6189.
[2023-12-25 18:15:03,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6189 states, 6188 states have (on average 1.648836457659987) internal successors, (10203), 6188 states have internal predecessors, (10203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:03,938 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 10203 transitions.
[2023-12-25 18:15:03,938 INFO  L78                 Accepts]: Start accepts. Automaton has 6189 states and 10203 transitions. Word has length 4099
[2023-12-25 18:15:03,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:03,940 INFO  L495      AbstractCegarLoop]: Abstraction has 6189 states and 10203 transitions.
[2023-12-25 18:15:03,941 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:03,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 6189 states and 10203 transitions.
[2023-12-25 18:15:04,030 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4101
[2023-12-25 18:15:04,030 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:04,031 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:04,094 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0
[2023-12-25 18:15:04,251 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106
[2023-12-25 18:15:04,251 INFO  L420      AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:04,251 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:04,252 INFO  L85        PathProgramCache]: Analyzing trace with hash -1952845939, now seen corresponding path program 1 times
[2023-12-25 18:15:04,252 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:04,252 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57390869]
[2023-12-25 18:15:04,252 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:04,252 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:04,537 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:04,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345937294]
[2023-12-25 18:15:04,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:04,538 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:04,538 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:04,539 INFO  L229       MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:04,541 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process
[2023-12-25 18:15:08,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:08,687 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19483 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:08,731 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:09,329 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 74 proven. 152 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:09,329 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:09,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked.
[2023-12-25 18:15:09,377 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:09,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57390869]
[2023-12-25 18:15:09,378 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:09,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345937294]
[2023-12-25 18:15:09,378 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345937294] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:09,379 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:09,379 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:09,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036479214]
[2023-12-25 18:15:09,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:09,382 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:09,382 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:09,383 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:09,383 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:09,383 INFO  L87              Difference]: Start difference. First operand 6189 states and 10203 transitions. Second operand  has 4 states, 4 states have (on average 935.25) internal successors, (3741), 4 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:09,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:09,527 INFO  L93              Difference]: Finished difference Result 16693 states and 27620 transitions.
[2023-12-25 18:15:09,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:09,528 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 935.25) internal successors, (3741), 4 states have internal predecessors, (3741), 0 states have call successors, (0), 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 4100
[2023-12-25 18:15:09,530 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:09,539 INFO  L225             Difference]: With dead ends: 16693
[2023-12-25 18:15:09,540 INFO  L226             Difference]: Without dead ends: 11335
[2023-12-25 18:15:09,545 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8199 GetRequests, 8190 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:09,545 INFO  L413           NwaCegarLoop]: 9946 mSDtfsCounter, 8520 mSDsluCounter, 18959 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8520 SdHoareTripleChecker+Valid, 28905 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:09,546 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8520 Valid, 28905 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:09,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11335 states.
[2023-12-25 18:15:09,608 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11335 to 6191.
[2023-12-25 18:15:09,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6191 states, 6190 states have (on average 1.648626817447496) internal successors, (10205), 6190 states have internal predecessors, (10205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:09,616 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6191 states to 6191 states and 10205 transitions.
[2023-12-25 18:15:09,616 INFO  L78                 Accepts]: Start accepts. Automaton has 6191 states and 10205 transitions. Word has length 4100
[2023-12-25 18:15:09,618 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:09,618 INFO  L495      AbstractCegarLoop]: Abstraction has 6191 states and 10205 transitions.
[2023-12-25 18:15:09,618 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 935.25) internal successors, (3741), 4 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:09,619 INFO  L276                IsEmpty]: Start isEmpty. Operand 6191 states and 10205 transitions.
[2023-12-25 18:15:09,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4102
[2023-12-25 18:15:09,704 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:09,705 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:09,759 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0
[2023-12-25 18:15:09,928 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107
[2023-12-25 18:15:09,928 INFO  L420      AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:09,928 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:09,929 INFO  L85        PathProgramCache]: Analyzing trace with hash -1226674351, now seen corresponding path program 1 times
[2023-12-25 18:15:09,929 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:09,929 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027779305]
[2023-12-25 18:15:09,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:09,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:10,202 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:10,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837767018]
[2023-12-25 18:15:10,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:10,203 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:10,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:10,204 INFO  L229       MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:10,217 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process
[2023-12-25 18:15:14,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:14,722 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19486 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:14,763 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:15,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 76 proven. 150 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:15,212 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:15,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked.
[2023-12-25 18:15:15,258 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:15,259 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027779305]
[2023-12-25 18:15:15,259 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:15,259 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837767018]
[2023-12-25 18:15:15,259 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837767018] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:15,259 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:15,259 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:15,259 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974855371]
[2023-12-25 18:15:15,259 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:15,262 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:15,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:15,263 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:15,263 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:15,264 INFO  L87              Difference]: Start difference. First operand 6191 states and 10205 transitions. Second operand  has 4 states, 4 states have (on average 936.0) internal successors, (3744), 4 states have internal predecessors, (3744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:15,435 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:15,436 INFO  L93              Difference]: Finished difference Result 16699 states and 27626 transitions.
[2023-12-25 18:15:15,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:15,437 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 936.0) internal successors, (3744), 4 states have internal predecessors, (3744), 0 states have call successors, (0), 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 4101
[2023-12-25 18:15:15,439 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:15,448 INFO  L225             Difference]: With dead ends: 16699
[2023-12-25 18:15:15,448 INFO  L226             Difference]: Without dead ends: 11336
[2023-12-25 18:15:15,454 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8201 GetRequests, 8192 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:15,454 INFO  L413           NwaCegarLoop]: 9941 mSDtfsCounter, 8517 mSDsluCounter, 18954 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8517 SdHoareTripleChecker+Valid, 28895 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:15,454 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8517 Valid, 28895 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:15,461 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11336 states.
[2023-12-25 18:15:15,520 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11336 to 6193.
[2023-12-25 18:15:15,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6193 states, 6192 states have (on average 1.6484173126614987) internal successors, (10207), 6192 states have internal predecessors, (10207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:15,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 10207 transitions.
[2023-12-25 18:15:15,531 INFO  L78                 Accepts]: Start accepts. Automaton has 6193 states and 10207 transitions. Word has length 4101
[2023-12-25 18:15:15,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:15,533 INFO  L495      AbstractCegarLoop]: Abstraction has 6193 states and 10207 transitions.
[2023-12-25 18:15:15,534 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 936.0) internal successors, (3744), 4 states have internal predecessors, (3744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:15,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 6193 states and 10207 transitions.
[2023-12-25 18:15:15,622 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4103
[2023-12-25 18:15:15,622 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:15,623 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:15,681 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0
[2023-12-25 18:15:15,836 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:15,836 INFO  L420      AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:15,837 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:15,837 INFO  L85        PathProgramCache]: Analyzing trace with hash -1240732493, now seen corresponding path program 1 times
[2023-12-25 18:15:15,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:15,837 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888384572]
[2023-12-25 18:15:15,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:15,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:16,178 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:16,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134114734]
[2023-12-25 18:15:16,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:16,179 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:16,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:16,180 INFO  L229       MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:16,182 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process
[2023-12-25 18:15:20,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:20,462 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19489 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:20,501 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:20,970 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 78 proven. 148 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:20,971 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:21,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-25 18:15:21,019 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:21,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888384572]
[2023-12-25 18:15:21,019 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:21,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134114734]
[2023-12-25 18:15:21,020 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134114734] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:21,020 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:21,020 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:21,020 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690024526]
[2023-12-25 18:15:21,020 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:21,022 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:21,022 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:21,024 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:21,024 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:21,024 INFO  L87              Difference]: Start difference. First operand 6193 states and 10207 transitions. Second operand  has 4 states, 4 states have (on average 936.75) internal successors, (3747), 4 states have internal predecessors, (3747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:21,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:21,167 INFO  L93              Difference]: Finished difference Result 16705 states and 27632 transitions.
[2023-12-25 18:15:21,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:21,169 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 936.75) internal successors, (3747), 4 states have internal predecessors, (3747), 0 states have call successors, (0), 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 4102
[2023-12-25 18:15:21,171 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:21,180 INFO  L225             Difference]: With dead ends: 16705
[2023-12-25 18:15:21,180 INFO  L226             Difference]: Without dead ends: 11337
[2023-12-25 18:15:21,186 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8203 GetRequests, 8194 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:21,187 INFO  L413           NwaCegarLoop]: 9936 mSDtfsCounter, 8514 mSDsluCounter, 18949 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8514 SdHoareTripleChecker+Valid, 28885 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:21,187 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8514 Valid, 28885 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:21,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11337 states.
[2023-12-25 18:15:21,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 6195.
[2023-12-25 18:15:21,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6195 states, 6194 states have (on average 1.6482079431708105) internal successors, (10209), 6194 states have internal predecessors, (10209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:21,259 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6195 states to 6195 states and 10209 transitions.
[2023-12-25 18:15:21,259 INFO  L78                 Accepts]: Start accepts. Automaton has 6195 states and 10209 transitions. Word has length 4102
[2023-12-25 18:15:21,261 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:21,261 INFO  L495      AbstractCegarLoop]: Abstraction has 6195 states and 10209 transitions.
[2023-12-25 18:15:21,261 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 936.75) internal successors, (3747), 4 states have internal predecessors, (3747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:21,262 INFO  L276                IsEmpty]: Start isEmpty. Operand 6195 states and 10209 transitions.
[2023-12-25 18:15:21,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4104
[2023-12-25 18:15:21,421 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:21,422 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:21,472 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0
[2023-12-25 18:15:21,625 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:21,625 INFO  L420      AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:21,626 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:21,626 INFO  L85        PathProgramCache]: Analyzing trace with hash -425455827, now seen corresponding path program 1 times
[2023-12-25 18:15:21,626 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:21,626 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467376417]
[2023-12-25 18:15:21,627 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:21,627 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:21,952 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:21,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152351966]
[2023-12-25 18:15:21,953 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:21,954 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:21,954 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:21,955 INFO  L229       MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:21,959 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process
[2023-12-25 18:15:26,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:26,210 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19493 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:26,252 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:26,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 80 proven. 146 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:26,682 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:26,741 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked.
[2023-12-25 18:15:26,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:26,742 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467376417]
[2023-12-25 18:15:26,742 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:26,742 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152351966]
[2023-12-25 18:15:26,742 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [152351966] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:26,742 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:26,742 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:26,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238065169]
[2023-12-25 18:15:26,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:26,745 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:26,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:26,746 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:26,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:26,746 INFO  L87              Difference]: Start difference. First operand 6195 states and 10209 transitions. Second operand  has 4 states, 4 states have (on average 937.75) internal successors, (3751), 4 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:26,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:26,898 INFO  L93              Difference]: Finished difference Result 16714 states and 27641 transitions.
[2023-12-25 18:15:26,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:26,899 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 937.75) internal successors, (3751), 4 states have internal predecessors, (3751), 0 states have call successors, (0), 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 4103
[2023-12-25 18:15:26,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:26,912 INFO  L225             Difference]: With dead ends: 16714
[2023-12-25 18:15:26,912 INFO  L226             Difference]: Without dead ends: 11341
[2023-12-25 18:15:26,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8205 GetRequests, 8196 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:26,919 INFO  L413           NwaCegarLoop]: 9928 mSDtfsCounter, 8509 mSDsluCounter, 18941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8509 SdHoareTripleChecker+Valid, 28869 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:26,919 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8509 Valid, 28869 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:26,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11341 states.
[2023-12-25 18:15:26,989 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 6203.
[2023-12-25 18:15:26,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6203 states, 6202 states have (on average 1.647694292163818) internal successors, (10219), 6202 states have internal predecessors, (10219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:27,001 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6203 states to 6203 states and 10219 transitions.
[2023-12-25 18:15:27,001 INFO  L78                 Accepts]: Start accepts. Automaton has 6203 states and 10219 transitions. Word has length 4103
[2023-12-25 18:15:27,003 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:27,003 INFO  L495      AbstractCegarLoop]: Abstraction has 6203 states and 10219 transitions.
[2023-12-25 18:15:27,004 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 937.75) internal successors, (3751), 4 states have internal predecessors, (3751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:27,004 INFO  L276                IsEmpty]: Start isEmpty. Operand 6203 states and 10219 transitions.
[2023-12-25 18:15:27,168 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4105
[2023-12-25 18:15:27,168 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:27,169 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:27,236 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0
[2023-12-25 18:15:27,383 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable110
[2023-12-25 18:15:27,383 INFO  L420      AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:27,384 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:27,384 INFO  L85        PathProgramCache]: Analyzing trace with hash 1323199617, now seen corresponding path program 1 times
[2023-12-25 18:15:27,384 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:27,384 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454723094]
[2023-12-25 18:15:27,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:27,384 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:27,666 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:27,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335278817]
[2023-12-25 18:15:27,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:27,667 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:27,667 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:27,668 INFO  L229       MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:27,672 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process
[2023-12-25 18:15:31,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:31,948 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19496 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:31,987 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:32,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 84 proven. 142 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:32,354 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:32,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked.
[2023-12-25 18:15:32,401 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:32,401 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454723094]
[2023-12-25 18:15:32,401 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:32,401 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335278817]
[2023-12-25 18:15:32,402 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [335278817] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:32,402 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:32,402 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:32,402 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329219372]
[2023-12-25 18:15:32,402 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:32,404 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:32,405 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:32,406 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:32,406 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:32,406 INFO  L87              Difference]: Start difference. First operand 6203 states and 10219 transitions. Second operand  has 4 states, 4 states have (on average 938.75) internal successors, (3755), 4 states have internal predecessors, (3755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:32,568 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:32,568 INFO  L93              Difference]: Finished difference Result 16735 states and 27666 transitions.
[2023-12-25 18:15:32,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:32,570 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 938.75) internal successors, (3755), 4 states have internal predecessors, (3755), 0 states have call successors, (0), 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 4104
[2023-12-25 18:15:32,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:32,582 INFO  L225             Difference]: With dead ends: 16735
[2023-12-25 18:15:32,583 INFO  L226             Difference]: Without dead ends: 11351
[2023-12-25 18:15:32,589 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8207 GetRequests, 8198 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:32,589 INFO  L413           NwaCegarLoop]: 9920 mSDtfsCounter, 8506 mSDsluCounter, 18933 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8506 SdHoareTripleChecker+Valid, 28853 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:32,589 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8506 Valid, 28853 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:32,598 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11351 states.
[2023-12-25 18:15:32,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11351 to 6213.
[2023-12-25 18:15:32,664 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6213 states, 6212 states have (on average 1.646973599484868) internal successors, (10231), 6212 states have internal predecessors, (10231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:32,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 10231 transitions.
[2023-12-25 18:15:32,670 INFO  L78                 Accepts]: Start accepts. Automaton has 6213 states and 10231 transitions. Word has length 4104
[2023-12-25 18:15:32,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:32,672 INFO  L495      AbstractCegarLoop]: Abstraction has 6213 states and 10231 transitions.
[2023-12-25 18:15:32,673 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 938.75) internal successors, (3755), 4 states have internal predecessors, (3755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:32,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 6213 states and 10231 transitions.
[2023-12-25 18:15:32,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4106
[2023-12-25 18:15:32,873 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:32,874 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:32,944 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0
[2023-12-25 18:15:33,088 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111
[2023-12-25 18:15:33,089 INFO  L420      AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:33,089 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:33,089 INFO  L85        PathProgramCache]: Analyzing trace with hash 2037354979, now seen corresponding path program 1 times
[2023-12-25 18:15:33,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:33,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465481340]
[2023-12-25 18:15:33,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:33,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:33,377 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:33,378 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222314647]
[2023-12-25 18:15:33,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:33,379 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:33,379 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:33,380 INFO  L229       MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:33,380 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process
[2023-12-25 18:15:37,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:37,610 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19500 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:37,651 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:38,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 88 proven. 138 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:38,113 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:38,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked.
[2023-12-25 18:15:38,160 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:38,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465481340]
[2023-12-25 18:15:38,160 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:38,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222314647]
[2023-12-25 18:15:38,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [222314647] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:38,160 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:38,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:38,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034619669]
[2023-12-25 18:15:38,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:38,163 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:38,163 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:38,164 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:38,164 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:38,164 INFO  L87              Difference]: Start difference. First operand 6213 states and 10231 transitions. Second operand  has 4 states, 4 states have (on average 939.75) internal successors, (3759), 4 states have internal predecessors, (3759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:38,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:38,306 INFO  L93              Difference]: Finished difference Result 16763 states and 27698 transitions.
[2023-12-25 18:15:38,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:38,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 939.75) internal successors, (3759), 4 states have internal predecessors, (3759), 0 states have call successors, (0), 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 4105
[2023-12-25 18:15:38,310 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:38,319 INFO  L225             Difference]: With dead ends: 16763
[2023-12-25 18:15:38,319 INFO  L226             Difference]: Without dead ends: 11365
[2023-12-25 18:15:38,324 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8209 GetRequests, 8200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:38,324 INFO  L413           NwaCegarLoop]: 9912 mSDtfsCounter, 8503 mSDsluCounter, 18925 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8503 SdHoareTripleChecker+Valid, 28837 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:38,324 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8503 Valid, 28837 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:38,330 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11365 states.
[2023-12-25 18:15:38,392 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 6223.
[2023-12-25 18:15:38,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6223 states, 6222 states have (on average 1.6462552234008359) internal successors, (10243), 6222 states have internal predecessors, (10243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:38,401 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 10243 transitions.
[2023-12-25 18:15:38,401 INFO  L78                 Accepts]: Start accepts. Automaton has 6223 states and 10243 transitions. Word has length 4105
[2023-12-25 18:15:38,403 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:38,403 INFO  L495      AbstractCegarLoop]: Abstraction has 6223 states and 10243 transitions.
[2023-12-25 18:15:38,404 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 939.75) internal successors, (3759), 4 states have internal predecessors, (3759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:38,404 INFO  L276                IsEmpty]: Start isEmpty. Operand 6223 states and 10243 transitions.
[2023-12-25 18:15:38,495 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4107
[2023-12-25 18:15:38,495 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:38,496 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:38,559 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0
[2023-12-25 18:15:38,711 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112
[2023-12-25 18:15:38,712 INFO  L420      AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:38,712 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:38,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 900755407, now seen corresponding path program 1 times
[2023-12-25 18:15:38,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:38,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295154623]
[2023-12-25 18:15:38,713 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:38,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:39,083 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:39,084 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987849579]
[2023-12-25 18:15:39,084 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:39,085 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:39,085 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:39,086 INFO  L229       MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:39,088 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process
[2023-12-25 18:15:43,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:43,454 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19503 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:43,496 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:43,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 92 proven. 134 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:43,866 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:43,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked.
[2023-12-25 18:15:43,911 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:43,911 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295154623]
[2023-12-25 18:15:43,912 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:43,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987849579]
[2023-12-25 18:15:43,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [987849579] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:43,912 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:43,912 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:43,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526998118]
[2023-12-25 18:15:43,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:43,914 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:43,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:43,916 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:43,916 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:43,916 INFO  L87              Difference]: Start difference. First operand 6223 states and 10243 transitions. Second operand  has 4 states, 4 states have (on average 940.75) internal successors, (3763), 4 states have internal predecessors, (3763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:44,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:44,060 INFO  L93              Difference]: Finished difference Result 16793 states and 27732 transitions.
[2023-12-25 18:15:44,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:44,061 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 940.75) internal successors, (3763), 4 states have internal predecessors, (3763), 0 states have call successors, (0), 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 4106
[2023-12-25 18:15:44,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:44,072 INFO  L225             Difference]: With dead ends: 16793
[2023-12-25 18:15:44,072 INFO  L226             Difference]: Without dead ends: 11379
[2023-12-25 18:15:44,077 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8211 GetRequests, 8202 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:44,077 INFO  L413           NwaCegarLoop]: 9904 mSDtfsCounter, 8500 mSDsluCounter, 18917 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8500 SdHoareTripleChecker+Valid, 28821 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:44,078 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8500 Valid, 28821 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:44,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11379 states.
[2023-12-25 18:15:44,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11379 to 6233.
[2023-12-25 18:15:44,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6233 states, 6232 states have (on average 1.6455391527599486) internal successors, (10255), 6232 states have internal predecessors, (10255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:44,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6233 states to 6233 states and 10255 transitions.
[2023-12-25 18:15:44,152 INFO  L78                 Accepts]: Start accepts. Automaton has 6233 states and 10255 transitions. Word has length 4106
[2023-12-25 18:15:44,154 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:44,154 INFO  L495      AbstractCegarLoop]: Abstraction has 6233 states and 10255 transitions.
[2023-12-25 18:15:44,155 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 940.75) internal successors, (3763), 4 states have internal predecessors, (3763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:44,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 6233 states and 10255 transitions.
[2023-12-25 18:15:44,242 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4108
[2023-12-25 18:15:44,242 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:44,243 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:44,296 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0
[2023-12-25 18:15:44,464 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:44,464 INFO  L420      AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:44,465 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:44,465 INFO  L85        PathProgramCache]: Analyzing trace with hash -648356839, now seen corresponding path program 1 times
[2023-12-25 18:15:44,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:44,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307727344]
[2023-12-25 18:15:44,465 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:44,465 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:44,830 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:44,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645798978]
[2023-12-25 18:15:44,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:44,831 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:44,832 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:44,832 INFO  L229       MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:44,833 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process
[2023-12-25 18:15:48,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:49,068 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19507 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:49,107 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:49,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 96 proven. 130 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:49,556 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:49,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2023-12-25 18:15:49,600 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:49,600 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307727344]
[2023-12-25 18:15:49,600 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:49,600 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645798978]
[2023-12-25 18:15:49,600 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645798978] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:49,600 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:49,601 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:49,601 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906431534]
[2023-12-25 18:15:49,601 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:49,603 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:49,603 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:49,604 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:49,605 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:49,605 INFO  L87              Difference]: Start difference. First operand 6233 states and 10255 transitions. Second operand  has 4 states, 4 states have (on average 941.75) internal successors, (3767), 4 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:49,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:49,743 INFO  L93              Difference]: Finished difference Result 16823 states and 27766 transitions.
[2023-12-25 18:15:49,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:49,744 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 941.75) internal successors, (3767), 4 states have internal predecessors, (3767), 0 states have call successors, (0), 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 4107
[2023-12-25 18:15:49,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:49,755 INFO  L225             Difference]: With dead ends: 16823
[2023-12-25 18:15:49,755 INFO  L226             Difference]: Without dead ends: 11393
[2023-12-25 18:15:49,760 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8213 GetRequests, 8204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:49,760 INFO  L413           NwaCegarLoop]: 9896 mSDtfsCounter, 8497 mSDsluCounter, 18909 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8497 SdHoareTripleChecker+Valid, 28805 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:49,760 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8497 Valid, 28805 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:49,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11393 states.
[2023-12-25 18:15:49,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 6243.
[2023-12-25 18:15:49,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6243 states, 6242 states have (on average 1.6448253764818968) internal successors, (10267), 6242 states have internal predecessors, (10267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:49,829 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6243 states to 6243 states and 10267 transitions.
[2023-12-25 18:15:49,829 INFO  L78                 Accepts]: Start accepts. Automaton has 6243 states and 10267 transitions. Word has length 4107
[2023-12-25 18:15:49,831 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:49,831 INFO  L495      AbstractCegarLoop]: Abstraction has 6243 states and 10267 transitions.
[2023-12-25 18:15:49,831 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 941.75) internal successors, (3767), 4 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:49,831 INFO  L276                IsEmpty]: Start isEmpty. Operand 6243 states and 10267 transitions.
[2023-12-25 18:15:49,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4109
[2023-12-25 18:15:49,918 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:49,918 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:49,975 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0
[2023-12-25 18:15:50,140 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114
[2023-12-25 18:15:50,140 INFO  L420      AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:50,140 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:50,141 INFO  L85        PathProgramCache]: Analyzing trace with hash -391358819, now seen corresponding path program 1 times
[2023-12-25 18:15:50,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:50,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270669584]
[2023-12-25 18:15:50,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:50,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:50,402 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:50,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454809900]
[2023-12-25 18:15:50,403 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:50,403 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:50,403 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:50,404 INFO  L229       MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:50,406 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process
[2023-12-25 18:15:54,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:15:54,946 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19510 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:15:54,984 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:15:55,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 100 proven. 126 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:15:55,368 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:15:55,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2023-12-25 18:15:55,414 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:15:55,414 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270669584]
[2023-12-25 18:15:55,414 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:15:55,414 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454809900]
[2023-12-25 18:15:55,414 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [454809900] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:15:55,414 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:15:55,415 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:15:55,415 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954885968]
[2023-12-25 18:15:55,415 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:15:55,417 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:15:55,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:15:55,418 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:15:55,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:15:55,419 INFO  L87              Difference]: Start difference. First operand 6243 states and 10267 transitions. Second operand  has 4 states, 4 states have (on average 942.75) internal successors, (3771), 4 states have internal predecessors, (3771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:55,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:15:55,568 INFO  L93              Difference]: Finished difference Result 16853 states and 27800 transitions.
[2023-12-25 18:15:55,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:15:55,569 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 942.75) internal successors, (3771), 4 states have internal predecessors, (3771), 0 states have call successors, (0), 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 4108
[2023-12-25 18:15:55,571 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:15:55,581 INFO  L225             Difference]: With dead ends: 16853
[2023-12-25 18:15:55,581 INFO  L226             Difference]: Without dead ends: 11407
[2023-12-25 18:15:55,586 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8215 GetRequests, 8206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:15:55,587 INFO  L413           NwaCegarLoop]: 9888 mSDtfsCounter, 8494 mSDsluCounter, 18901 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8494 SdHoareTripleChecker+Valid, 28789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:15:55,587 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8494 Valid, 28789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:15:55,596 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11407 states.
[2023-12-25 18:15:55,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11407 to 6253.
[2023-12-25 18:15:55,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6253 states, 6252 states have (on average 1.6441138835572617) internal successors, (10279), 6252 states have internal predecessors, (10279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:55,659 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6253 states to 6253 states and 10279 transitions.
[2023-12-25 18:15:55,659 INFO  L78                 Accepts]: Start accepts. Automaton has 6253 states and 10279 transitions. Word has length 4108
[2023-12-25 18:15:55,661 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:15:55,661 INFO  L495      AbstractCegarLoop]: Abstraction has 6253 states and 10279 transitions.
[2023-12-25 18:15:55,662 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 942.75) internal successors, (3771), 4 states have internal predecessors, (3771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:15:55,662 INFO  L276                IsEmpty]: Start isEmpty. Operand 6253 states and 10279 transitions.
[2023-12-25 18:15:55,747 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4110
[2023-12-25 18:15:55,748 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:15:55,749 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:15:55,805 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0
[2023-12-25 18:15:55,972 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115
[2023-12-25 18:15:55,972 INFO  L420      AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:15:55,973 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:15:55,973 INFO  L85        PathProgramCache]: Analyzing trace with hash 1358024143, now seen corresponding path program 1 times
[2023-12-25 18:15:55,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:15:55,973 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306073250]
[2023-12-25 18:15:55,973 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:55,974 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:15:56,253 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:15:56,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987460342]
[2023-12-25 18:15:56,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:15:56,254 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:15:56,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:15:56,255 INFO  L229       MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:15:56,256 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process
[2023-12-25 18:16:00,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:00,790 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19514 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:00,839 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:01,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 104 proven. 122 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:01,294 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:01,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-12-25 18:16:01,342 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:01,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306073250]
[2023-12-25 18:16:01,342 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:01,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987460342]
[2023-12-25 18:16:01,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [987460342] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:01,342 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:01,343 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:01,343 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774410886]
[2023-12-25 18:16:01,343 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:01,345 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:01,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:01,347 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:01,347 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:01,348 INFO  L87              Difference]: Start difference. First operand 6253 states and 10279 transitions. Second operand  has 4 states, 4 states have (on average 943.75) internal successors, (3775), 4 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:01,496 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:01,496 INFO  L93              Difference]: Finished difference Result 16883 states and 27834 transitions.
[2023-12-25 18:16:01,497 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:01,498 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 943.75) internal successors, (3775), 4 states have internal predecessors, (3775), 0 states have call successors, (0), 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 4109
[2023-12-25 18:16:01,500 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:01,509 INFO  L225             Difference]: With dead ends: 16883
[2023-12-25 18:16:01,509 INFO  L226             Difference]: Without dead ends: 11421
[2023-12-25 18:16:01,514 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8217 GetRequests, 8208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:01,515 INFO  L413           NwaCegarLoop]: 9880 mSDtfsCounter, 8491 mSDsluCounter, 18893 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8491 SdHoareTripleChecker+Valid, 28773 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:01,515 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8491 Valid, 28773 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:01,521 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11421 states.
[2023-12-25 18:16:01,578 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11421 to 6263.
[2023-12-25 18:16:01,582 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6263 states, 6262 states have (on average 1.6434046630469499) internal successors, (10291), 6262 states have internal predecessors, (10291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:01,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 10291 transitions.
[2023-12-25 18:16:01,587 INFO  L78                 Accepts]: Start accepts. Automaton has 6263 states and 10291 transitions. Word has length 4109
[2023-12-25 18:16:01,589 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:01,589 INFO  L495      AbstractCegarLoop]: Abstraction has 6263 states and 10291 transitions.
[2023-12-25 18:16:01,589 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 943.75) internal successors, (3775), 4 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:01,589 INFO  L276                IsEmpty]: Start isEmpty. Operand 6263 states and 10291 transitions.
[2023-12-25 18:16:01,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4111
[2023-12-25 18:16:01,677 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:01,678 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:01,745 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:01,892 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116
[2023-12-25 18:16:01,892 INFO  L420      AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:01,893 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:01,893 INFO  L85        PathProgramCache]: Analyzing trace with hash 424968427, now seen corresponding path program 1 times
[2023-12-25 18:16:01,893 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:01,893 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959992949]
[2023-12-25 18:16:01,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:01,893 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:02,182 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:02,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059077832]
[2023-12-25 18:16:02,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:02,183 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:02,183 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:02,186 INFO  L229       MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:02,187 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process
[2023-12-25 18:16:07,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:07,304 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19517 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 18:16:07,347 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:07,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 108 proven. 118 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:07,816 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:07,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked.
[2023-12-25 18:16:07,877 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:07,877 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959992949]
[2023-12-25 18:16:07,877 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:07,877 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059077832]
[2023-12-25 18:16:07,877 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059077832] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:07,877 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:07,878 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 18:16:07,878 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57823315]
[2023-12-25 18:16:07,878 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:07,880 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:16:07,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:07,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:16:07,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:16:07,882 INFO  L87              Difference]: Start difference. First operand 6263 states and 10291 transitions. Second operand  has 5 states, 5 states have (on average 755.8) internal successors, (3779), 5 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:08,194 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:08,194 INFO  L93              Difference]: Finished difference Result 22382 states and 36891 transitions.
[2023-12-25 18:16:08,194 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 18:16:08,195 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 755.8) internal successors, (3779), 5 states have internal predecessors, (3779), 0 states have call successors, (0), 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 4110
[2023-12-25 18:16:08,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:08,214 INFO  L225             Difference]: With dead ends: 22382
[2023-12-25 18:16:08,214 INFO  L226             Difference]: Without dead ends: 16904
[2023-12-25 18:16:08,222 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8222 GetRequests, 8209 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210
[2023-12-25 18:16:08,222 INFO  L413           NwaCegarLoop]: 18494 mSDtfsCounter, 17114 mSDsluCounter, 45992 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17114 SdHoareTripleChecker+Valid, 64486 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:08,222 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17114 Valid, 64486 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:16:08,233 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16904 states.
[2023-12-25 18:16:08,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16904 to 6273.
[2023-12-25 18:16:08,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6273 states, 6272 states have (on average 1.6426977040816326) internal successors, (10303), 6272 states have internal predecessors, (10303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:08,316 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6273 states to 6273 states and 10303 transitions.
[2023-12-25 18:16:08,316 INFO  L78                 Accepts]: Start accepts. Automaton has 6273 states and 10303 transitions. Word has length 4110
[2023-12-25 18:16:08,317 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:08,318 INFO  L495      AbstractCegarLoop]: Abstraction has 6273 states and 10303 transitions.
[2023-12-25 18:16:08,318 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 755.8) internal successors, (3779), 5 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:08,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 6273 states and 10303 transitions.
[2023-12-25 18:16:08,405 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4112
[2023-12-25 18:16:08,405 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:08,406 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:08,463 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:08,613 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117
[2023-12-25 18:16:08,614 INFO  L420      AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:08,614 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:08,615 INFO  L85        PathProgramCache]: Analyzing trace with hash -761772283, now seen corresponding path program 1 times
[2023-12-25 18:16:08,615 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:08,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793867571]
[2023-12-25 18:16:08,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:08,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:09,084 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:09,084 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432783861]
[2023-12-25 18:16:09,085 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:09,085 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:09,085 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:09,086 INFO  L229       MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:09,091 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process
[2023-12-25 18:16:13,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:13,335 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19521 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:13,377 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:13,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 112 proven. 114 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:13,858 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:13,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2023-12-25 18:16:13,906 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:13,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793867571]
[2023-12-25 18:16:13,906 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:13,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432783861]
[2023-12-25 18:16:13,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432783861] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:13,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:13,907 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:13,907 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106498181]
[2023-12-25 18:16:13,907 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:13,909 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:13,909 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:13,911 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:13,911 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:13,911 INFO  L87              Difference]: Start difference. First operand 6273 states and 10303 transitions. Second operand  has 4 states, 4 states have (on average 945.75) internal successors, (3783), 4 states have internal predecessors, (3783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:14,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:14,070 INFO  L93              Difference]: Finished difference Result 16943 states and 27902 transitions.
[2023-12-25 18:16:14,070 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:14,072 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 945.75) internal successors, (3783), 4 states have internal predecessors, (3783), 0 states have call successors, (0), 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 4111
[2023-12-25 18:16:14,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:14,088 INFO  L225             Difference]: With dead ends: 16943
[2023-12-25 18:16:14,088 INFO  L226             Difference]: Without dead ends: 11449
[2023-12-25 18:16:14,097 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8221 GetRequests, 8212 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:14,097 INFO  L413           NwaCegarLoop]: 9864 mSDtfsCounter, 8485 mSDsluCounter, 18877 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8485 SdHoareTripleChecker+Valid, 28741 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:14,098 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8485 Valid, 28741 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:14,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11449 states.
[2023-12-25 18:16:14,168 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 6283.
[2023-12-25 18:16:14,173 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6283 states, 6282 states have (on average 1.6419929958611907) internal successors, (10315), 6282 states have internal predecessors, (10315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:14,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 10315 transitions.
[2023-12-25 18:16:14,180 INFO  L78                 Accepts]: Start accepts. Automaton has 6283 states and 10315 transitions. Word has length 4111
[2023-12-25 18:16:14,181 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:14,182 INFO  L495      AbstractCegarLoop]: Abstraction has 6283 states and 10315 transitions.
[2023-12-25 18:16:14,182 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 945.75) internal successors, (3783), 4 states have internal predecessors, (3783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:14,183 INFO  L276                IsEmpty]: Start isEmpty. Operand 6283 states and 10315 transitions.
[2023-12-25 18:16:14,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4113
[2023-12-25 18:16:14,271 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:14,272 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:14,335 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:14,488 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118
[2023-12-25 18:16:14,489 INFO  L420      AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:14,489 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:14,489 INFO  L85        PathProgramCache]: Analyzing trace with hash 1786990265, now seen corresponding path program 1 times
[2023-12-25 18:16:14,489 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:14,489 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446454341]
[2023-12-25 18:16:14,489 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:14,490 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:14,924 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:14,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160340661]
[2023-12-25 18:16:14,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:14,925 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:14,925 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:14,926 INFO  L229       MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:14,927 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process
[2023-12-25 18:16:19,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:19,245 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19524 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:19,288 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:19,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 116 proven. 110 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:19,654 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:19,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked.
[2023-12-25 18:16:19,829 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:19,829 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446454341]
[2023-12-25 18:16:19,829 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:19,829 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160340661]
[2023-12-25 18:16:19,829 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [160340661] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:19,829 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:19,830 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:19,830 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788972447]
[2023-12-25 18:16:19,830 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:19,832 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:19,832 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:19,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:19,833 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:19,834 INFO  L87              Difference]: Start difference. First operand 6283 states and 10315 transitions. Second operand  has 4 states, 4 states have (on average 946.75) internal successors, (3787), 4 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:19,979 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:19,979 INFO  L93              Difference]: Finished difference Result 16973 states and 27936 transitions.
[2023-12-25 18:16:19,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:19,980 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 946.75) internal successors, (3787), 4 states have internal predecessors, (3787), 0 states have call successors, (0), 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 4112
[2023-12-25 18:16:19,983 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:19,992 INFO  L225             Difference]: With dead ends: 16973
[2023-12-25 18:16:19,992 INFO  L226             Difference]: Without dead ends: 11463
[2023-12-25 18:16:19,998 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8223 GetRequests, 8214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:19,999 INFO  L413           NwaCegarLoop]: 9856 mSDtfsCounter, 8482 mSDsluCounter, 18869 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8482 SdHoareTripleChecker+Valid, 28725 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:19,999 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8482 Valid, 28725 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:20,008 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11463 states.
[2023-12-25 18:16:20,066 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11463 to 6293.
[2023-12-25 18:16:20,070 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.641290527654164) internal successors, (10327), 6292 states have internal predecessors, (10327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:20,076 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 10327 transitions.
[2023-12-25 18:16:20,076 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 10327 transitions. Word has length 4112
[2023-12-25 18:16:20,078 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:20,078 INFO  L495      AbstractCegarLoop]: Abstraction has 6293 states and 10327 transitions.
[2023-12-25 18:16:20,078 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 946.75) internal successors, (3787), 4 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:20,079 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 10327 transitions.
[2023-12-25 18:16:20,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4114
[2023-12-25 18:16:20,167 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:20,167 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:20,228 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:20,380 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable119
[2023-12-25 18:16:20,380 INFO  L420      AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:20,380 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:20,381 INFO  L85        PathProgramCache]: Analyzing trace with hash 2122983355, now seen corresponding path program 1 times
[2023-12-25 18:16:20,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:20,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953948446]
[2023-12-25 18:16:20,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:20,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:20,628 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:20,628 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1414731936]
[2023-12-25 18:16:20,629 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:20,629 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:20,629 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:20,630 INFO  L229       MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:20,655 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process
[2023-12-25 18:16:24,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:24,930 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19528 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:25,139 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:25,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 120 proven. 106 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:25,600 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:25,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked.
[2023-12-25 18:16:25,648 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:25,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953948446]
[2023-12-25 18:16:25,648 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:25,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414731936]
[2023-12-25 18:16:25,648 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414731936] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:25,648 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:25,649 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:25,649 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678394787]
[2023-12-25 18:16:25,649 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:25,651 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:25,651 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:25,652 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:25,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:25,653 INFO  L87              Difference]: Start difference. First operand 6293 states and 10327 transitions. Second operand  has 4 states, 4 states have (on average 947.75) internal successors, (3791), 4 states have internal predecessors, (3791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:25,797 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:25,798 INFO  L93              Difference]: Finished difference Result 17003 states and 27970 transitions.
[2023-12-25 18:16:25,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:25,799 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 947.75) internal successors, (3791), 4 states have internal predecessors, (3791), 0 states have call successors, (0), 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 4113
[2023-12-25 18:16:25,801 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:25,810 INFO  L225             Difference]: With dead ends: 17003
[2023-12-25 18:16:25,810 INFO  L226             Difference]: Without dead ends: 11477
[2023-12-25 18:16:25,816 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8225 GetRequests, 8216 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:25,816 INFO  L413           NwaCegarLoop]: 9848 mSDtfsCounter, 8479 mSDsluCounter, 18861 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8479 SdHoareTripleChecker+Valid, 28709 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:25,816 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8479 Valid, 28709 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:25,823 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11477 states.
[2023-12-25 18:16:25,886 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11477 to 6303.
[2023-12-25 18:16:25,891 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6303 states, 6302 states have (on average 1.6405902887972073) internal successors, (10339), 6302 states have internal predecessors, (10339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:25,898 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 10339 transitions.
[2023-12-25 18:16:25,898 INFO  L78                 Accepts]: Start accepts. Automaton has 6303 states and 10339 transitions. Word has length 4113
[2023-12-25 18:16:25,900 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:25,900 INFO  L495      AbstractCegarLoop]: Abstraction has 6303 states and 10339 transitions.
[2023-12-25 18:16:25,901 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 947.75) internal successors, (3791), 4 states have internal predecessors, (3791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:25,901 INFO  L276                IsEmpty]: Start isEmpty. Operand 6303 states and 10339 transitions.
[2023-12-25 18:16:25,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4115
[2023-12-25 18:16:25,989 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:25,990 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:26,051 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:26,216 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:26,216 INFO  L420      AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:26,216 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:26,217 INFO  L85        PathProgramCache]: Analyzing trace with hash -1368711161, now seen corresponding path program 1 times
[2023-12-25 18:16:26,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:26,217 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337643011]
[2023-12-25 18:16:26,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:26,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:26,571 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:26,571 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850418341]
[2023-12-25 18:16:26,572 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:26,572 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:26,572 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:26,573 INFO  L229       MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:26,594 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process
[2023-12-25 18:16:30,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:30,877 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19531 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:30,920 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:31,306 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 124 proven. 102 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:31,306 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:31,352 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked.
[2023-12-25 18:16:31,353 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:31,353 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337643011]
[2023-12-25 18:16:31,353 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:31,353 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850418341]
[2023-12-25 18:16:31,353 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850418341] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:31,353 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:31,353 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:31,354 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996392167]
[2023-12-25 18:16:31,354 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:31,356 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:31,356 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:31,357 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:31,357 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:31,358 INFO  L87              Difference]: Start difference. First operand 6303 states and 10339 transitions. Second operand  has 4 states, 4 states have (on average 948.75) internal successors, (3795), 4 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:31,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:31,505 INFO  L93              Difference]: Finished difference Result 17033 states and 28004 transitions.
[2023-12-25 18:16:31,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:31,506 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 948.75) internal successors, (3795), 4 states have internal predecessors, (3795), 0 states have call successors, (0), 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 4114
[2023-12-25 18:16:31,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:31,517 INFO  L225             Difference]: With dead ends: 17033
[2023-12-25 18:16:31,517 INFO  L226             Difference]: Without dead ends: 11491
[2023-12-25 18:16:31,523 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8227 GetRequests, 8218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:31,523 INFO  L413           NwaCegarLoop]: 9840 mSDtfsCounter, 8476 mSDsluCounter, 18853 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8476 SdHoareTripleChecker+Valid, 28693 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:31,523 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8476 Valid, 28693 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:31,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11491 states.
[2023-12-25 18:16:31,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11491 to 6313.
[2023-12-25 18:16:31,588 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6313 states, 6312 states have (on average 1.63989226869455) internal successors, (10351), 6312 states have internal predecessors, (10351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:31,593 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 10351 transitions.
[2023-12-25 18:16:31,593 INFO  L78                 Accepts]: Start accepts. Automaton has 6313 states and 10351 transitions. Word has length 4114
[2023-12-25 18:16:31,594 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:31,594 INFO  L495      AbstractCegarLoop]: Abstraction has 6313 states and 10351 transitions.
[2023-12-25 18:16:31,595 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 948.75) internal successors, (3795), 4 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:31,595 INFO  L276                IsEmpty]: Start isEmpty. Operand 6313 states and 10351 transitions.
[2023-12-25 18:16:31,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4116
[2023-12-25 18:16:31,682 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:31,683 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:31,742 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:31,907 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:31,907 INFO  L420      AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:31,907 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:31,908 INFO  L85        PathProgramCache]: Analyzing trace with hash -1462022159, now seen corresponding path program 1 times
[2023-12-25 18:16:31,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:31,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603405489]
[2023-12-25 18:16:31,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:31,908 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:32,267 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:32,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731904663]
[2023-12-25 18:16:32,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:32,268 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:32,268 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:32,269 INFO  L229       MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:32,270 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process
[2023-12-25 18:16:36,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:36,601 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19535 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:36,642 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:37,066 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 128 proven. 98 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:37,066 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:37,112 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked.
[2023-12-25 18:16:37,112 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:37,112 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603405489]
[2023-12-25 18:16:37,112 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:37,112 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731904663]
[2023-12-25 18:16:37,113 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [731904663] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:37,113 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:37,113 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:37,113 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703181327]
[2023-12-25 18:16:37,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:37,115 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:37,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:37,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:37,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:37,117 INFO  L87              Difference]: Start difference. First operand 6313 states and 10351 transitions. Second operand  has 4 states, 4 states have (on average 949.5) internal successors, (3798), 4 states have internal predecessors, (3798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:37,265 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:37,265 INFO  L93              Difference]: Finished difference Result 17060 states and 28035 transitions.
[2023-12-25 18:16:37,265 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:37,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 949.5) internal successors, (3798), 4 states have internal predecessors, (3798), 0 states have call successors, (0), 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 4115
[2023-12-25 18:16:37,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:37,278 INFO  L225             Difference]: With dead ends: 17060
[2023-12-25 18:16:37,279 INFO  L226             Difference]: Without dead ends: 11502
[2023-12-25 18:16:37,285 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8229 GetRequests, 8220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:37,285 INFO  L413           NwaCegarLoop]: 9835 mSDtfsCounter, 8475 mSDsluCounter, 18848 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8475 SdHoareTripleChecker+Valid, 28683 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:37,285 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8475 Valid, 28683 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:37,292 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11502 states.
[2023-12-25 18:16:37,351 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 6317.
[2023-12-25 18:16:37,356 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6317 states, 6316 states have (on average 1.63948701709943) internal successors, (10355), 6316 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:37,362 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6317 states to 6317 states and 10355 transitions.
[2023-12-25 18:16:37,362 INFO  L78                 Accepts]: Start accepts. Automaton has 6317 states and 10355 transitions. Word has length 4115
[2023-12-25 18:16:37,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:37,364 INFO  L495      AbstractCegarLoop]: Abstraction has 6317 states and 10355 transitions.
[2023-12-25 18:16:37,365 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 949.5) internal successors, (3798), 4 states have internal predecessors, (3798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:37,365 INFO  L276                IsEmpty]: Start isEmpty. Operand 6317 states and 10355 transitions.
[2023-12-25 18:16:37,453 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4117
[2023-12-25 18:16:37,453 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:37,454 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:37,523 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0
[2023-12-25 18:16:37,664 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:37,665 INFO  L420      AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:37,665 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:37,665 INFO  L85        PathProgramCache]: Analyzing trace with hash -1290583249, now seen corresponding path program 1 times
[2023-12-25 18:16:37,665 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:37,665 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607483112]
[2023-12-25 18:16:37,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:37,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:37,989 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:37,989 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029960642]
[2023-12-25 18:16:37,990 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:37,990 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:37,990 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:37,991 INFO  L229       MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:37,992 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process
[2023-12-25 18:16:42,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:42,274 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19538 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:42,315 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:42,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 130 proven. 96 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:42,696 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:42,759 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2023-12-25 18:16:42,759 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:42,759 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607483112]
[2023-12-25 18:16:42,759 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:42,759 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029960642]
[2023-12-25 18:16:42,759 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029960642] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:42,759 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:42,760 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:42,760 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665832877]
[2023-12-25 18:16:42,760 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:42,762 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:42,762 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:42,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:42,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:42,764 INFO  L87              Difference]: Start difference. First operand 6317 states and 10355 transitions. Second operand  has 4 states, 4 states have (on average 950.5) internal successors, (3802), 4 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:42,912 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:42,912 INFO  L93              Difference]: Finished difference Result 17078 states and 28053 transitions.
[2023-12-25 18:16:42,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:42,914 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 950.5) internal successors, (3802), 4 states have internal predecessors, (3802), 0 states have call successors, (0), 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 4116
[2023-12-25 18:16:42,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:42,926 INFO  L225             Difference]: With dead ends: 17078
[2023-12-25 18:16:42,926 INFO  L226             Difference]: Without dead ends: 11510
[2023-12-25 18:16:42,932 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8231 GetRequests, 8222 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:42,933 INFO  L413           NwaCegarLoop]: 9827 mSDtfsCounter, 8470 mSDsluCounter, 18840 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8470 SdHoareTripleChecker+Valid, 28667 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:42,933 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8470 Valid, 28667 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:42,939 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11510 states.
[2023-12-25 18:16:42,999 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 6327.
[2023-12-25 18:16:43,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6327 states, 6326 states have (on average 1.6387922858046158) internal successors, (10367), 6326 states have internal predecessors, (10367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:43,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6327 states to 6327 states and 10367 transitions.
[2023-12-25 18:16:43,010 INFO  L78                 Accepts]: Start accepts. Automaton has 6327 states and 10367 transitions. Word has length 4116
[2023-12-25 18:16:43,011 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:43,011 INFO  L495      AbstractCegarLoop]: Abstraction has 6327 states and 10367 transitions.
[2023-12-25 18:16:43,012 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 950.5) internal successors, (3802), 4 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:43,012 INFO  L276                IsEmpty]: Start isEmpty. Operand 6327 states and 10367 transitions.
[2023-12-25 18:16:43,099 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4118
[2023-12-25 18:16:43,099 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:43,100 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:43,166 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:43,324 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123
[2023-12-25 18:16:43,325 INFO  L420      AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:43,325 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:43,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 844865381, now seen corresponding path program 1 times
[2023-12-25 18:16:43,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:43,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672439225]
[2023-12-25 18:16:43,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:43,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:43,707 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:43,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183616126]
[2023-12-25 18:16:43,708 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:43,708 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:43,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:43,709 INFO  L229       MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:43,711 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process
[2023-12-25 18:16:47,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:48,054 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19541 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:48,095 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:48,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 134 proven. 92 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:48,456 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:48,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked.
[2023-12-25 18:16:48,500 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:48,500 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672439225]
[2023-12-25 18:16:48,501 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:48,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183616126]
[2023-12-25 18:16:48,501 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [183616126] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:48,501 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:48,501 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:48,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471170935]
[2023-12-25 18:16:48,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:48,504 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:48,504 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:48,505 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:48,505 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:48,506 INFO  L87              Difference]: Start difference. First operand 6327 states and 10367 transitions. Second operand  has 4 states, 4 states have (on average 951.5) internal successors, (3806), 4 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:48,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:48,651 INFO  L93              Difference]: Finished difference Result 17105 states and 28085 transitions.
[2023-12-25 18:16:48,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:48,652 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 951.5) internal successors, (3806), 4 states have internal predecessors, (3806), 0 states have call successors, (0), 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 4117
[2023-12-25 18:16:48,655 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:48,665 INFO  L225             Difference]: With dead ends: 17105
[2023-12-25 18:16:48,665 INFO  L226             Difference]: Without dead ends: 11524
[2023-12-25 18:16:48,672 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8233 GetRequests, 8224 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:48,672 INFO  L413           NwaCegarLoop]: 9818 mSDtfsCounter, 8467 mSDsluCounter, 18831 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8467 SdHoareTripleChecker+Valid, 28649 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:48,672 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8467 Valid, 28649 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:48,679 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11524 states.
[2023-12-25 18:16:48,742 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11524 to 6337.
[2023-12-25 18:16:48,747 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6337 states, 6336 states have (on average 1.6382575757575757) internal successors, (10380), 6336 states have internal predecessors, (10380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:48,753 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6337 states to 6337 states and 10380 transitions.
[2023-12-25 18:16:48,754 INFO  L78                 Accepts]: Start accepts. Automaton has 6337 states and 10380 transitions. Word has length 4117
[2023-12-25 18:16:48,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:48,756 INFO  L495      AbstractCegarLoop]: Abstraction has 6337 states and 10380 transitions.
[2023-12-25 18:16:48,756 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 951.5) internal successors, (3806), 4 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:48,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 6337 states and 10380 transitions.
[2023-12-25 18:16:48,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4119
[2023-12-25 18:16:48,845 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:48,846 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:48,910 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:49,060 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124
[2023-12-25 18:16:49,060 INFO  L420      AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:49,061 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:49,061 INFO  L85        PathProgramCache]: Analyzing trace with hash 618500795, now seen corresponding path program 1 times
[2023-12-25 18:16:49,061 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:49,061 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229216081]
[2023-12-25 18:16:49,061 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:49,061 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:49,353 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:49,353 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330851002]
[2023-12-25 18:16:49,354 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:49,354 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:49,356 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:49,357 INFO  L229       MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:49,358 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process
[2023-12-25 18:16:53,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:53,851 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19544 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:53,894 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:16:54,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 138 proven. 88 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:16:54,265 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:16:54,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2023-12-25 18:16:54,320 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:16:54,320 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229216081]
[2023-12-25 18:16:54,320 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:16:54,320 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330851002]
[2023-12-25 18:16:54,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330851002] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:16:54,321 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:16:54,321 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:16:54,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571688422]
[2023-12-25 18:16:54,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:16:54,323 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:16:54,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:16:54,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:16:54,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:16:54,325 INFO  L87              Difference]: Start difference. First operand 6337 states and 10380 transitions. Second operand  has 4 states, 4 states have (on average 952.5) internal successors, (3810), 4 states have internal predecessors, (3810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:54,474 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:16:54,474 INFO  L93              Difference]: Finished difference Result 17135 states and 28121 transitions.
[2023-12-25 18:16:54,474 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:16:54,475 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 952.5) internal successors, (3810), 4 states have internal predecessors, (3810), 0 states have call successors, (0), 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 4118
[2023-12-25 18:16:54,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:16:54,488 INFO  L225             Difference]: With dead ends: 17135
[2023-12-25 18:16:54,488 INFO  L226             Difference]: Without dead ends: 11538
[2023-12-25 18:16:54,494 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8235 GetRequests, 8226 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:16:54,495 INFO  L413           NwaCegarLoop]: 9810 mSDtfsCounter, 8464 mSDsluCounter, 18823 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8464 SdHoareTripleChecker+Valid, 28633 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:16:54,495 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8464 Valid, 28633 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:16:54,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11538 states.
[2023-12-25 18:16:54,563 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11538 to 6347.
[2023-12-25 18:16:54,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6347 states, 6346 states have (on average 1.6375669713205168) internal successors, (10392), 6346 states have internal predecessors, (10392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:54,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6347 states to 6347 states and 10392 transitions.
[2023-12-25 18:16:54,575 INFO  L78                 Accepts]: Start accepts. Automaton has 6347 states and 10392 transitions. Word has length 4118
[2023-12-25 18:16:54,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:16:54,576 INFO  L495      AbstractCegarLoop]: Abstraction has 6347 states and 10392 transitions.
[2023-12-25 18:16:54,577 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 952.5) internal successors, (3810), 4 states have internal predecessors, (3810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:16:54,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 6347 states and 10392 transitions.
[2023-12-25 18:16:54,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4120
[2023-12-25 18:16:54,665 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:16:54,666 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:16:54,725 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0
[2023-12-25 18:16:54,868 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125
[2023-12-25 18:16:54,868 INFO  L420      AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:16:54,869 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:16:54,869 INFO  L85        PathProgramCache]: Analyzing trace with hash 1710547161, now seen corresponding path program 1 times
[2023-12-25 18:16:54,869 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:16:54,869 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544887963]
[2023-12-25 18:16:54,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:54,870 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:16:55,131 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:16:55,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422524059]
[2023-12-25 18:16:55,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:16:55,132 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:16:55,132 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:16:55,133 INFO  L229       MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:16:55,156 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process
[2023-12-25 18:16:59,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:16:59,577 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19547 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:16:59,616 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:00,035 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 142 proven. 84 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:00,035 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:00,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked.
[2023-12-25 18:17:00,105 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:00,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544887963]
[2023-12-25 18:17:00,105 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:00,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422524059]
[2023-12-25 18:17:00,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [422524059] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:00,105 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:00,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:00,106 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876674339]
[2023-12-25 18:17:00,106 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:00,108 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:00,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:00,110 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:00,110 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:00,110 INFO  L87              Difference]: Start difference. First operand 6347 states and 10392 transitions. Second operand  has 4 states, 4 states have (on average 953.5) internal successors, (3814), 4 states have internal predecessors, (3814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:00,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:00,257 INFO  L93              Difference]: Finished difference Result 17165 states and 28157 transitions.
[2023-12-25 18:17:00,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:00,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 953.5) internal successors, (3814), 4 states have internal predecessors, (3814), 0 states have call successors, (0), 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 4119
[2023-12-25 18:17:00,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:00,269 INFO  L225             Difference]: With dead ends: 17165
[2023-12-25 18:17:00,269 INFO  L226             Difference]: Without dead ends: 11552
[2023-12-25 18:17:00,275 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8237 GetRequests, 8228 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:00,275 INFO  L413           NwaCegarLoop]: 9801 mSDtfsCounter, 8461 mSDsluCounter, 18814 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8461 SdHoareTripleChecker+Valid, 28615 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:00,275 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8461 Valid, 28615 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:00,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11552 states.
[2023-12-25 18:17:00,343 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11552 to 6357.
[2023-12-25 18:17:00,349 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6357 states, 6356 states have (on average 1.6370358716173694) internal successors, (10405), 6356 states have internal predecessors, (10405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:00,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6357 states to 6357 states and 10405 transitions.
[2023-12-25 18:17:00,355 INFO  L78                 Accepts]: Start accepts. Automaton has 6357 states and 10405 transitions. Word has length 4119
[2023-12-25 18:17:00,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:00,357 INFO  L495      AbstractCegarLoop]: Abstraction has 6357 states and 10405 transitions.
[2023-12-25 18:17:00,357 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 953.5) internal successors, (3814), 4 states have internal predecessors, (3814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:00,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 6357 states and 10405 transitions.
[2023-12-25 18:17:00,445 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4121
[2023-12-25 18:17:00,445 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:00,446 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:00,498 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:00,664 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126
[2023-12-25 18:17:00,665 INFO  L420      AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:00,665 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:00,665 INFO  L85        PathProgramCache]: Analyzing trace with hash -857042873, now seen corresponding path program 1 times
[2023-12-25 18:17:00,665 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:00,665 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746259574]
[2023-12-25 18:17:00,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:00,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:01,041 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:01,041 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472744293]
[2023-12-25 18:17:01,042 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:01,042 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:01,042 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:01,043 INFO  L229       MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:01,045 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process
[2023-12-25 18:17:05,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:05,280 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19550 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:05,318 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:05,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 146 proven. 80 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:05,701 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:05,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked.
[2023-12-25 18:17:05,747 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:05,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746259574]
[2023-12-25 18:17:05,747 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:05,747 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472744293]
[2023-12-25 18:17:05,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [472744293] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:05,748 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:05,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:05,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822899378]
[2023-12-25 18:17:05,748 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:05,750 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:05,750 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:05,752 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:05,752 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:05,752 INFO  L87              Difference]: Start difference. First operand 6357 states and 10405 transitions. Second operand  has 4 states, 4 states have (on average 954.5) internal successors, (3818), 4 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:05,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:05,901 INFO  L93              Difference]: Finished difference Result 17195 states and 28193 transitions.
[2023-12-25 18:17:05,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:05,903 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 954.5) internal successors, (3818), 4 states have internal predecessors, (3818), 0 states have call successors, (0), 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 4120
[2023-12-25 18:17:05,905 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:05,916 INFO  L225             Difference]: With dead ends: 17195
[2023-12-25 18:17:05,916 INFO  L226             Difference]: Without dead ends: 11566
[2023-12-25 18:17:05,922 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8239 GetRequests, 8230 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:05,923 INFO  L413           NwaCegarLoop]: 9793 mSDtfsCounter, 8458 mSDsluCounter, 18806 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8458 SdHoareTripleChecker+Valid, 28599 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:05,923 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8458 Valid, 28599 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:05,928 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11566 states.
[2023-12-25 18:17:05,987 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 6367.
[2023-12-25 18:17:05,991 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6367 states, 6366 states have (on average 1.636349355953503) internal successors, (10417), 6366 states have internal predecessors, (10417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:05,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6367 states to 6367 states and 10417 transitions.
[2023-12-25 18:17:05,996 INFO  L78                 Accepts]: Start accepts. Automaton has 6367 states and 10417 transitions. Word has length 4120
[2023-12-25 18:17:05,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:05,998 INFO  L495      AbstractCegarLoop]: Abstraction has 6367 states and 10417 transitions.
[2023-12-25 18:17:05,998 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 954.5) internal successors, (3818), 4 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:05,998 INFO  L276                IsEmpty]: Start isEmpty. Operand 6367 states and 10417 transitions.
[2023-12-25 18:17:06,087 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4122
[2023-12-25 18:17:06,088 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:06,089 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:06,146 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:06,290 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:06,291 INFO  L420      AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:06,291 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:06,291 INFO  L85        PathProgramCache]: Analyzing trace with hash 499110989, now seen corresponding path program 1 times
[2023-12-25 18:17:06,291 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:06,291 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978429406]
[2023-12-25 18:17:06,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:06,292 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:06,600 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:06,600 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972462710]
[2023-12-25 18:17:06,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:06,601 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:06,601 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:06,602 INFO  L229       MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:06,605 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process
[2023-12-25 18:17:11,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:11,540 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19553 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:11,585 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:11,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 150 proven. 76 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:11,944 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:11,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2023-12-25 18:17:11,992 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:11,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978429406]
[2023-12-25 18:17:11,992 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:11,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972462710]
[2023-12-25 18:17:11,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972462710] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:11,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:11,993 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:11,993 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937157111]
[2023-12-25 18:17:11,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:11,995 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:11,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:11,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:11,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:11,997 INFO  L87              Difference]: Start difference. First operand 6367 states and 10417 transitions. Second operand  has 4 states, 4 states have (on average 955.5) internal successors, (3822), 4 states have internal predecessors, (3822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:12,143 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:12,143 INFO  L93              Difference]: Finished difference Result 17225 states and 28229 transitions.
[2023-12-25 18:17:12,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:12,144 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 955.5) internal successors, (3822), 4 states have internal predecessors, (3822), 0 states have call successors, (0), 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 4121
[2023-12-25 18:17:12,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:12,154 INFO  L225             Difference]: With dead ends: 17225
[2023-12-25 18:17:12,154 INFO  L226             Difference]: Without dead ends: 11580
[2023-12-25 18:17:12,159 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8241 GetRequests, 8232 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:12,159 INFO  L413           NwaCegarLoop]: 9784 mSDtfsCounter, 8455 mSDsluCounter, 18797 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8455 SdHoareTripleChecker+Valid, 28581 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:12,159 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8455 Valid, 28581 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:12,164 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11580 states.
[2023-12-25 18:17:12,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11580 to 6377.
[2023-12-25 18:17:12,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6377 states, 6376 states have (on average 1.6358218318695106) internal successors, (10430), 6376 states have internal predecessors, (10430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:12,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6377 states to 6377 states and 10430 transitions.
[2023-12-25 18:17:12,221 INFO  L78                 Accepts]: Start accepts. Automaton has 6377 states and 10430 transitions. Word has length 4121
[2023-12-25 18:17:12,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:12,223 INFO  L495      AbstractCegarLoop]: Abstraction has 6377 states and 10430 transitions.
[2023-12-25 18:17:12,224 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 955.5) internal successors, (3822), 4 states have internal predecessors, (3822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:12,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 6377 states and 10430 transitions.
[2023-12-25 18:17:12,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4123
[2023-12-25 18:17:12,310 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:12,311 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:12,362 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:12,524 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:12,524 INFO  L420      AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:12,525 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:12,525 INFO  L85        PathProgramCache]: Analyzing trace with hash 788626387, now seen corresponding path program 1 times
[2023-12-25 18:17:12,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:12,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874208241]
[2023-12-25 18:17:12,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:12,525 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:13,006 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:13,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458794713]
[2023-12-25 18:17:13,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:13,009 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:13,009 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:13,010 INFO  L229       MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:13,012 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process
[2023-12-25 18:17:17,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:17,161 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19556 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:17,204 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:17,572 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 154 proven. 72 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:17,572 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:17,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2023-12-25 18:17:17,619 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:17,619 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874208241]
[2023-12-25 18:17:17,619 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:17,619 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458794713]
[2023-12-25 18:17:17,619 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [458794713] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:17,619 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:17,620 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:17,620 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233539963]
[2023-12-25 18:17:17,620 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:17,622 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:17,622 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:17,624 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:17,624 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:17,624 INFO  L87              Difference]: Start difference. First operand 6377 states and 10430 transitions. Second operand  has 4 states, 4 states have (on average 956.5) internal successors, (3826), 4 states have internal predecessors, (3826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:17,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:17,841 INFO  L93              Difference]: Finished difference Result 17255 states and 28265 transitions.
[2023-12-25 18:17:17,841 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:17,842 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 956.5) internal successors, (3826), 4 states have internal predecessors, (3826), 0 states have call successors, (0), 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 4122
[2023-12-25 18:17:17,844 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:17,852 INFO  L225             Difference]: With dead ends: 17255
[2023-12-25 18:17:17,852 INFO  L226             Difference]: Without dead ends: 11594
[2023-12-25 18:17:17,857 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8243 GetRequests, 8234 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:17,857 INFO  L413           NwaCegarLoop]: 9776 mSDtfsCounter, 8452 mSDsluCounter, 18789 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8452 SdHoareTripleChecker+Valid, 28565 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:17,857 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8452 Valid, 28565 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:17,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11594 states.
[2023-12-25 18:17:17,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 6387.
[2023-12-25 18:17:17,926 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6387 states, 6386 states have (on average 1.6351393673661134) internal successors, (10442), 6386 states have internal predecessors, (10442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:17,932 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 10442 transitions.
[2023-12-25 18:17:17,932 INFO  L78                 Accepts]: Start accepts. Automaton has 6387 states and 10442 transitions. Word has length 4122
[2023-12-25 18:17:17,934 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:17,934 INFO  L495      AbstractCegarLoop]: Abstraction has 6387 states and 10442 transitions.
[2023-12-25 18:17:17,935 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 956.5) internal successors, (3826), 4 states have internal predecessors, (3826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:17,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 6387 states and 10442 transitions.
[2023-12-25 18:17:18,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4124
[2023-12-25 18:17:18,022 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:18,023 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:18,085 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:18,236 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129
[2023-12-25 18:17:18,236 INFO  L420      AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:18,236 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:18,237 INFO  L85        PathProgramCache]: Analyzing trace with hash -1324009023, now seen corresponding path program 1 times
[2023-12-25 18:17:18,237 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:18,237 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293555536]
[2023-12-25 18:17:18,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:18,237 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:18,521 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:18,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658904539]
[2023-12-25 18:17:18,522 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:18,522 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:18,522 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:18,524 INFO  L229       MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:18,525 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process
[2023-12-25 18:17:22,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:23,096 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19559 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:23,136 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:23,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 158 proven. 68 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:23,598 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:23,643 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked.
[2023-12-25 18:17:23,644 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:23,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293555536]
[2023-12-25 18:17:23,644 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:23,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658904539]
[2023-12-25 18:17:23,644 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [658904539] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:23,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:23,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:23,645 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231755482]
[2023-12-25 18:17:23,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:23,647 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:23,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:23,648 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:23,648 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:23,649 INFO  L87              Difference]: Start difference. First operand 6387 states and 10442 transitions. Second operand  has 4 states, 4 states have (on average 957.5) internal successors, (3830), 4 states have internal predecessors, (3830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:23,799 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:23,799 INFO  L93              Difference]: Finished difference Result 17285 states and 28301 transitions.
[2023-12-25 18:17:23,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:23,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 957.5) internal successors, (3830), 4 states have internal predecessors, (3830), 0 states have call successors, (0), 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 4123
[2023-12-25 18:17:23,802 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:23,813 INFO  L225             Difference]: With dead ends: 17285
[2023-12-25 18:17:23,813 INFO  L226             Difference]: Without dead ends: 11608
[2023-12-25 18:17:23,819 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8245 GetRequests, 8236 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:23,820 INFO  L413           NwaCegarLoop]: 9767 mSDtfsCounter, 8449 mSDsluCounter, 18780 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8449 SdHoareTripleChecker+Valid, 28547 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:23,820 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8449 Valid, 28547 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:23,827 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11608 states.
[2023-12-25 18:17:23,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11608 to 6397.
[2023-12-25 18:17:23,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6397 states, 6396 states have (on average 1.6346153846153846) internal successors, (10455), 6396 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:23,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 10455 transitions.
[2023-12-25 18:17:23,906 INFO  L78                 Accepts]: Start accepts. Automaton has 6397 states and 10455 transitions. Word has length 4123
[2023-12-25 18:17:23,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:23,908 INFO  L495      AbstractCegarLoop]: Abstraction has 6397 states and 10455 transitions.
[2023-12-25 18:17:23,909 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 957.5) internal successors, (3830), 4 states have internal predecessors, (3830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:23,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 6397 states and 10455 transitions.
[2023-12-25 18:17:23,998 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4125
[2023-12-25 18:17:23,998 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:23,999 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:24,066 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0
[2023-12-25 18:17:24,224 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:24,225 INFO  L420      AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:24,225 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:24,225 INFO  L85        PathProgramCache]: Analyzing trace with hash 531207519, now seen corresponding path program 1 times
[2023-12-25 18:17:24,225 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:24,225 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388213550]
[2023-12-25 18:17:24,226 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:24,226 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:24,588 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:24,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955037286]
[2023-12-25 18:17:24,589 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:24,589 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:24,589 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:24,590 INFO  L229       MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:24,593 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process
[2023-12-25 18:17:29,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:29,242 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19562 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:29,293 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:29,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 162 proven. 64 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:29,693 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:29,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked.
[2023-12-25 18:17:29,744 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:29,744 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388213550]
[2023-12-25 18:17:29,745 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:29,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955037286]
[2023-12-25 18:17:29,745 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [955037286] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:29,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:29,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:29,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514424533]
[2023-12-25 18:17:29,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:29,748 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:29,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:29,750 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:29,750 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:29,751 INFO  L87              Difference]: Start difference. First operand 6397 states and 10455 transitions. Second operand  has 4 states, 4 states have (on average 958.5) internal successors, (3834), 4 states have internal predecessors, (3834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:29,911 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:29,911 INFO  L93              Difference]: Finished difference Result 17315 states and 28337 transitions.
[2023-12-25 18:17:29,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:29,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 958.5) internal successors, (3834), 4 states have internal predecessors, (3834), 0 states have call successors, (0), 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 4124
[2023-12-25 18:17:29,915 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:29,929 INFO  L225             Difference]: With dead ends: 17315
[2023-12-25 18:17:29,930 INFO  L226             Difference]: Without dead ends: 11622
[2023-12-25 18:17:29,937 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8247 GetRequests, 8238 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:29,937 INFO  L413           NwaCegarLoop]: 9759 mSDtfsCounter, 8446 mSDsluCounter, 18772 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8446 SdHoareTripleChecker+Valid, 28531 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:29,937 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8446 Valid, 28531 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:29,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11622 states.
[2023-12-25 18:17:30,018 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11622 to 6407.
[2023-12-25 18:17:30,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6407 states, 6406 states have (on average 1.6339369341242584) internal successors, (10467), 6406 states have internal predecessors, (10467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:30,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6407 states to 6407 states and 10467 transitions.
[2023-12-25 18:17:30,036 INFO  L78                 Accepts]: Start accepts. Automaton has 6407 states and 10467 transitions. Word has length 4124
[2023-12-25 18:17:30,039 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:30,039 INFO  L495      AbstractCegarLoop]: Abstraction has 6407 states and 10467 transitions.
[2023-12-25 18:17:30,039 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 958.5) internal successors, (3834), 4 states have internal predecessors, (3834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:30,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 6407 states and 10467 transitions.
[2023-12-25 18:17:30,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4126
[2023-12-25 18:17:30,229 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:30,230 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:30,298 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:30,456 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:30,457 INFO  L420      AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:30,457 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:30,457 INFO  L85        PathProgramCache]: Analyzing trace with hash -661794507, now seen corresponding path program 1 times
[2023-12-25 18:17:30,458 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:30,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310079610]
[2023-12-25 18:17:30,458 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:30,458 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:30,763 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:30,764 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611349109]
[2023-12-25 18:17:30,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:30,765 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:30,765 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:30,766 INFO  L229       MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:30,771 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process
[2023-12-25 18:17:35,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:35,343 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19565 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:35,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:35,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 166 proven. 60 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:35,828 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:35,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked.
[2023-12-25 18:17:35,876 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:35,876 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310079610]
[2023-12-25 18:17:35,876 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:35,876 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611349109]
[2023-12-25 18:17:35,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [611349109] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:35,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:35,877 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:35,877 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286182155]
[2023-12-25 18:17:35,877 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:35,879 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:35,879 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:35,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:35,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:35,882 INFO  L87              Difference]: Start difference. First operand 6407 states and 10467 transitions. Second operand  has 4 states, 4 states have (on average 959.5) internal successors, (3838), 4 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:36,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:36,215 INFO  L93              Difference]: Finished difference Result 17345 states and 28373 transitions.
[2023-12-25 18:17:36,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:36,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 959.5) internal successors, (3838), 4 states have internal predecessors, (3838), 0 states have call successors, (0), 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 4125
[2023-12-25 18:17:36,219 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:36,231 INFO  L225             Difference]: With dead ends: 17345
[2023-12-25 18:17:36,231 INFO  L226             Difference]: Without dead ends: 11636
[2023-12-25 18:17:36,237 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8249 GetRequests, 8240 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:36,238 INFO  L413           NwaCegarLoop]: 9750 mSDtfsCounter, 8443 mSDsluCounter, 18763 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8443 SdHoareTripleChecker+Valid, 28513 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:36,238 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8443 Valid, 28513 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:17:36,246 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11636 states.
[2023-12-25 18:17:36,312 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11636 to 6417.
[2023-12-25 18:17:36,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6417 states, 6416 states have (on average 1.633416458852868) internal successors, (10480), 6416 states have internal predecessors, (10480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:36,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 10480 transitions.
[2023-12-25 18:17:36,325 INFO  L78                 Accepts]: Start accepts. Automaton has 6417 states and 10480 transitions. Word has length 4125
[2023-12-25 18:17:36,326 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:36,327 INFO  L495      AbstractCegarLoop]: Abstraction has 6417 states and 10480 transitions.
[2023-12-25 18:17:36,327 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 959.5) internal successors, (3838), 4 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:36,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 6417 states and 10480 transitions.
[2023-12-25 18:17:36,417 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4127
[2023-12-25 18:17:36,418 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:36,418 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:36,480 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:36,639 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable132
[2023-12-25 18:17:36,640 INFO  L420      AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:36,640 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:36,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -534110997, now seen corresponding path program 1 times
[2023-12-25 18:17:36,640 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:36,640 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854695375]
[2023-12-25 18:17:36,641 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:36,641 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:37,005 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:37,005 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590892243]
[2023-12-25 18:17:37,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:37,007 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:37,007 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:37,008 INFO  L229       MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:37,010 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process
[2023-12-25 18:17:41,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:41,941 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19568 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:41,987 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:42,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 170 proven. 56 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:42,440 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:42,490 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked.
[2023-12-25 18:17:42,490 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:42,490 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854695375]
[2023-12-25 18:17:42,490 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:42,490 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590892243]
[2023-12-25 18:17:42,490 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [590892243] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:42,490 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:42,491 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:42,491 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442614448]
[2023-12-25 18:17:42,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:42,493 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:42,493 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:42,495 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:42,495 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:42,495 INFO  L87              Difference]: Start difference. First operand 6417 states and 10480 transitions. Second operand  has 4 states, 4 states have (on average 960.5) internal successors, (3842), 4 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:42,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:42,651 INFO  L93              Difference]: Finished difference Result 17375 states and 28409 transitions.
[2023-12-25 18:17:42,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:42,652 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 960.5) internal successors, (3842), 4 states have internal predecessors, (3842), 0 states have call successors, (0), 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 4126
[2023-12-25 18:17:42,655 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:42,667 INFO  L225             Difference]: With dead ends: 17375
[2023-12-25 18:17:42,667 INFO  L226             Difference]: Without dead ends: 11650
[2023-12-25 18:17:42,674 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8251 GetRequests, 8242 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:42,674 INFO  L413           NwaCegarLoop]: 9742 mSDtfsCounter, 8440 mSDsluCounter, 18755 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8440 SdHoareTripleChecker+Valid, 28497 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:42,674 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8440 Valid, 28497 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:42,681 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11650 states.
[2023-12-25 18:17:42,744 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11650 to 6427.
[2023-12-25 18:17:42,750 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6427 states, 6426 states have (on average 1.6327419856831622) internal successors, (10492), 6426 states have internal predecessors, (10492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:42,756 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6427 states to 6427 states and 10492 transitions.
[2023-12-25 18:17:42,757 INFO  L78                 Accepts]: Start accepts. Automaton has 6427 states and 10492 transitions. Word has length 4126
[2023-12-25 18:17:42,758 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:42,758 INFO  L495      AbstractCegarLoop]: Abstraction has 6427 states and 10492 transitions.
[2023-12-25 18:17:42,759 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 960.5) internal successors, (3842), 4 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:42,759 INFO  L276                IsEmpty]: Start isEmpty. Operand 6427 states and 10492 transitions.
[2023-12-25 18:17:42,851 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4128
[2023-12-25 18:17:42,851 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:42,852 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:42,920 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:43,080 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable133
[2023-12-25 18:17:43,081 INFO  L420      AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:43,081 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:43,081 INFO  L85        PathProgramCache]: Analyzing trace with hash -1845339479, now seen corresponding path program 1 times
[2023-12-25 18:17:43,081 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:43,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984220399]
[2023-12-25 18:17:43,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:43,082 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:43,452 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:43,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696211369]
[2023-12-25 18:17:43,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:43,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:43,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:43,455 INFO  L229       MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:43,456 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process
[2023-12-25 18:17:47,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:48,067 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19571 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 18:17:48,125 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:48,580 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 174 proven. 52 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:48,580 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:48,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked.
[2023-12-25 18:17:48,640 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:48,640 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984220399]
[2023-12-25 18:17:48,640 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:48,640 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696211369]
[2023-12-25 18:17:48,640 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [696211369] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:48,640 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:48,641 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 18:17:48,641 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450581091]
[2023-12-25 18:17:48,641 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:48,643 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:17:48,643 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:48,645 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:17:48,645 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:17:48,646 INFO  L87              Difference]: Start difference. First operand 6427 states and 10492 transitions. Second operand  has 5 states, 5 states have (on average 769.2) internal successors, (3846), 5 states have internal predecessors, (3846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:48,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:48,962 INFO  L93              Difference]: Finished difference Result 23137 states and 37807 transitions.
[2023-12-25 18:17:48,962 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 18:17:48,963 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 769.2) internal successors, (3846), 5 states have internal predecessors, (3846), 0 states have call successors, (0), 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 4127
[2023-12-25 18:17:48,966 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:48,986 INFO  L225             Difference]: With dead ends: 23137
[2023-12-25 18:17:48,986 INFO  L226             Difference]: Without dead ends: 17396
[2023-12-25 18:17:48,995 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8256 GetRequests, 8243 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210
[2023-12-25 18:17:48,995 INFO  L413           NwaCegarLoop]: 18355 mSDtfsCounter, 17063 mSDsluCounter, 45714 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17063 SdHoareTripleChecker+Valid, 64069 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:48,996 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17063 Valid, 64069 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:17:49,008 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17396 states.
[2023-12-25 18:17:49,100 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17396 to 6437.
[2023-12-25 18:17:49,106 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6437 states, 6436 states have (on average 1.632224984462399) internal successors, (10505), 6436 states have internal predecessors, (10505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:49,114 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6437 states to 6437 states and 10505 transitions.
[2023-12-25 18:17:49,114 INFO  L78                 Accepts]: Start accepts. Automaton has 6437 states and 10505 transitions. Word has length 4127
[2023-12-25 18:17:49,116 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:49,116 INFO  L495      AbstractCegarLoop]: Abstraction has 6437 states and 10505 transitions.
[2023-12-25 18:17:49,117 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 769.2) internal successors, (3846), 5 states have internal predecessors, (3846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:49,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 6437 states and 10505 transitions.
[2023-12-25 18:17:49,307 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4129
[2023-12-25 18:17:49,307 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:49,308 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:49,376 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0
[2023-12-25 18:17:49,530 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134
[2023-12-25 18:17:49,531 INFO  L420      AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:49,531 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:49,532 INFO  L85        PathProgramCache]: Analyzing trace with hash 982143607, now seen corresponding path program 1 times
[2023-12-25 18:17:49,532 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:49,532 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805632025]
[2023-12-25 18:17:49,532 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:49,532 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:49,835 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:49,835 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57906534]
[2023-12-25 18:17:49,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:49,836 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:49,836 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:49,837 INFO  L229       MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:49,838 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process
[2023-12-25 18:17:54,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:17:54,525 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19574 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:17:54,574 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:17:55,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 178 proven. 48 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:17:55,030 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:17:55,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked.
[2023-12-25 18:17:55,079 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:17:55,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805632025]
[2023-12-25 18:17:55,079 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:17:55,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57906534]
[2023-12-25 18:17:55,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [57906534] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:17:55,079 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:17:55,080 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:17:55,080 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456822427]
[2023-12-25 18:17:55,080 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:17:55,082 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:17:55,082 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:17:55,084 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:17:55,084 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:17:55,084 INFO  L87              Difference]: Start difference. First operand 6437 states and 10505 transitions. Second operand  has 4 states, 4 states have (on average 962.25) internal successors, (3849), 4 states have internal predecessors, (3849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:55,247 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:17:55,247 INFO  L93              Difference]: Finished difference Result 17432 states and 28478 transitions.
[2023-12-25 18:17:55,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:17:55,249 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 962.25) internal successors, (3849), 4 states have internal predecessors, (3849), 0 states have call successors, (0), 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 4128
[2023-12-25 18:17:55,252 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:17:55,265 INFO  L225             Difference]: With dead ends: 17432
[2023-12-25 18:17:55,265 INFO  L226             Difference]: Without dead ends: 11675
[2023-12-25 18:17:55,273 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8255 GetRequests, 8246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:17:55,273 INFO  L413           NwaCegarLoop]: 9728 mSDtfsCounter, 8436 mSDsluCounter, 18741 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8436 SdHoareTripleChecker+Valid, 28469 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:17:55,273 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8436 Valid, 28469 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:17:55,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11675 states.
[2023-12-25 18:17:55,356 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11675 to 6441.
[2023-12-25 18:17:55,362 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6441 states, 6440 states have (on average 1.631832298136646) internal successors, (10509), 6440 states have internal predecessors, (10509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:55,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6441 states to 6441 states and 10509 transitions.
[2023-12-25 18:17:55,370 INFO  L78                 Accepts]: Start accepts. Automaton has 6441 states and 10509 transitions. Word has length 4128
[2023-12-25 18:17:55,372 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:17:55,372 INFO  L495      AbstractCegarLoop]: Abstraction has 6441 states and 10509 transitions.
[2023-12-25 18:17:55,373 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 962.25) internal successors, (3849), 4 states have internal predecessors, (3849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:17:55,373 INFO  L276                IsEmpty]: Start isEmpty. Operand 6441 states and 10509 transitions.
[2023-12-25 18:17:55,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4130
[2023-12-25 18:17:55,569 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:17:55,570 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:17:55,636 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0
[2023-12-25 18:17:55,789 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135
[2023-12-25 18:17:55,790 INFO  L420      AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:17:55,790 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:17:55,791 INFO  L85        PathProgramCache]: Analyzing trace with hash -1237039997, now seen corresponding path program 1 times
[2023-12-25 18:17:55,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:17:55,791 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828538256]
[2023-12-25 18:17:55,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:55,791 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:17:56,099 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:17:56,099 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349437220]
[2023-12-25 18:17:56,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:17:56,100 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:17:56,100 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:17:56,101 INFO  L229       MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:17:56,104 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process
[2023-12-25 18:18:00,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:00,712 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19577 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:00,764 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:01,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 180 proven. 46 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:01,218 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:01,267 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-25 18:18:01,267 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:01,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828538256]
[2023-12-25 18:18:01,267 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:01,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349437220]
[2023-12-25 18:18:01,268 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349437220] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:01,268 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:01,268 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:01,268 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483636347]
[2023-12-25 18:18:01,268 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:01,271 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:01,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:01,273 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:01,273 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:01,273 INFO  L87              Difference]: Start difference. First operand 6441 states and 10509 transitions. Second operand  has 4 states, 4 states have (on average 963.25) internal successors, (3853), 4 states have internal predecessors, (3853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:01,435 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:01,435 INFO  L93              Difference]: Finished difference Result 17450 states and 28497 transitions.
[2023-12-25 18:18:01,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:01,436 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 963.25) internal successors, (3853), 4 states have internal predecessors, (3853), 0 states have call successors, (0), 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 4129
[2023-12-25 18:18:01,439 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:01,452 INFO  L225             Difference]: With dead ends: 17450
[2023-12-25 18:18:01,452 INFO  L226             Difference]: Without dead ends: 11683
[2023-12-25 18:18:01,459 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8257 GetRequests, 8248 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:01,459 INFO  L413           NwaCegarLoop]: 9720 mSDtfsCounter, 8431 mSDsluCounter, 18733 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8431 SdHoareTripleChecker+Valid, 28453 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:01,459 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8431 Valid, 28453 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:01,469 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11683 states.
[2023-12-25 18:18:01,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 6451.
[2023-12-25 18:18:01,548 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6451 states, 6450 states have (on average 1.6311627906976744) internal successors, (10521), 6450 states have internal predecessors, (10521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:01,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 10521 transitions.
[2023-12-25 18:18:01,555 INFO  L78                 Accepts]: Start accepts. Automaton has 6451 states and 10521 transitions. Word has length 4129
[2023-12-25 18:18:01,557 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:01,557 INFO  L495      AbstractCegarLoop]: Abstraction has 6451 states and 10521 transitions.
[2023-12-25 18:18:01,558 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 963.25) internal successors, (3853), 4 states have internal predecessors, (3853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:01,558 INFO  L276                IsEmpty]: Start isEmpty. Operand 6451 states and 10521 transitions.
[2023-12-25 18:18:01,783 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4131
[2023-12-25 18:18:01,783 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:01,784 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:01,856 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0
[2023-12-25 18:18:01,999 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable136
[2023-12-25 18:18:01,999 INFO  L420      AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:01,999 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:02,000 INFO  L85        PathProgramCache]: Analyzing trace with hash 2040876161, now seen corresponding path program 1 times
[2023-12-25 18:18:02,000 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:02,000 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344702910]
[2023-12-25 18:18:02,000 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:02,000 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:02,305 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:02,305 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958400743]
[2023-12-25 18:18:02,306 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:02,306 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:02,307 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:02,308 INFO  L229       MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:02,309 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process
[2023-12-25 18:18:06,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:07,028 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19581 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:07,077 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:07,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 184 proven. 42 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:07,554 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:07,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2023-12-25 18:18:07,608 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:07,608 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344702910]
[2023-12-25 18:18:07,608 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:07,608 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958400743]
[2023-12-25 18:18:07,608 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958400743] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:07,608 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:07,609 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:07,609 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077056613]
[2023-12-25 18:18:07,609 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:07,612 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:07,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:07,613 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:07,614 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:07,614 INFO  L87              Difference]: Start difference. First operand 6451 states and 10521 transitions. Second operand  has 4 states, 4 states have (on average 964.25) internal successors, (3857), 4 states have internal predecessors, (3857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:07,786 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:07,786 INFO  L93              Difference]: Finished difference Result 17477 states and 28528 transitions.
[2023-12-25 18:18:07,786 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:07,787 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 964.25) internal successors, (3857), 4 states have internal predecessors, (3857), 0 states have call successors, (0), 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 4130
[2023-12-25 18:18:07,790 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:07,803 INFO  L225             Difference]: With dead ends: 17477
[2023-12-25 18:18:07,803 INFO  L226             Difference]: Without dead ends: 11697
[2023-12-25 18:18:07,811 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8259 GetRequests, 8250 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:07,811 INFO  L413           NwaCegarLoop]: 9712 mSDtfsCounter, 8428 mSDsluCounter, 18725 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8428 SdHoareTripleChecker+Valid, 28437 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:07,811 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8428 Valid, 28437 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:07,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11697 states.
[2023-12-25 18:18:07,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11697 to 6461.
[2023-12-25 18:18:07,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6461 states, 6460 states have (on average 1.6304953560371518) internal successors, (10533), 6460 states have internal predecessors, (10533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:07,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6461 states to 6461 states and 10533 transitions.
[2023-12-25 18:18:07,913 INFO  L78                 Accepts]: Start accepts. Automaton has 6461 states and 10533 transitions. Word has length 4130
[2023-12-25 18:18:07,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:07,915 INFO  L495      AbstractCegarLoop]: Abstraction has 6461 states and 10533 transitions.
[2023-12-25 18:18:07,916 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 964.25) internal successors, (3857), 4 states have internal predecessors, (3857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:07,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 6461 states and 10533 transitions.
[2023-12-25 18:18:08,170 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4132
[2023-12-25 18:18:08,170 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:08,171 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:08,246 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:08,390 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137,71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:08,391 INFO  L420      AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:08,391 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:08,391 INFO  L85        PathProgramCache]: Analyzing trace with hash -252935947, now seen corresponding path program 1 times
[2023-12-25 18:18:08,391 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:08,391 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737403673]
[2023-12-25 18:18:08,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:08,392 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:08,712 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:08,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570575986]
[2023-12-25 18:18:08,713 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:08,713 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:08,713 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:08,714 INFO  L229       MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:08,716 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process
[2023-12-25 18:18:13,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:13,592 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19584 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:13,653 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:14,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 188 proven. 38 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:14,224 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:14,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2023-12-25 18:18:14,289 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:14,290 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737403673]
[2023-12-25 18:18:14,290 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:14,290 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570575986]
[2023-12-25 18:18:14,290 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [570575986] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:14,290 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:14,291 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:14,291 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703783500]
[2023-12-25 18:18:14,291 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:14,294 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:14,294 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:14,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:14,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:14,297 INFO  L87              Difference]: Start difference. First operand 6461 states and 10533 transitions. Second operand  has 4 states, 4 states have (on average 965.25) internal successors, (3861), 4 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:14,513 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:14,513 INFO  L93              Difference]: Finished difference Result 17507 states and 28562 transitions.
[2023-12-25 18:18:14,514 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:14,515 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 965.25) internal successors, (3861), 4 states have internal predecessors, (3861), 0 states have call successors, (0), 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 4131
[2023-12-25 18:18:14,518 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:14,535 INFO  L225             Difference]: With dead ends: 17507
[2023-12-25 18:18:14,536 INFO  L226             Difference]: Without dead ends: 11711
[2023-12-25 18:18:14,545 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8261 GetRequests, 8252 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:14,545 INFO  L413           NwaCegarLoop]: 9704 mSDtfsCounter, 8425 mSDsluCounter, 18717 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8425 SdHoareTripleChecker+Valid, 28421 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:14,545 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8425 Valid, 28421 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:14,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11711 states.
[2023-12-25 18:18:14,654 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11711 to 6471.
[2023-12-25 18:18:14,662 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6471 states, 6470 states have (on average 1.6298299845440494) internal successors, (10545), 6470 states have internal predecessors, (10545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:14,671 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 10545 transitions.
[2023-12-25 18:18:14,671 INFO  L78                 Accepts]: Start accepts. Automaton has 6471 states and 10545 transitions. Word has length 4131
[2023-12-25 18:18:14,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:14,675 INFO  L495      AbstractCegarLoop]: Abstraction has 6471 states and 10545 transitions.
[2023-12-25 18:18:14,676 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 965.25) internal successors, (3861), 4 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:14,676 INFO  L276                IsEmpty]: Start isEmpty. Operand 6471 states and 10545 transitions.
[2023-12-25 18:18:14,929 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4133
[2023-12-25 18:18:14,929 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:14,930 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:15,002 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:15,132 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138,72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:15,132 INFO  L420      AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:15,133 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:15,133 INFO  L85        PathProgramCache]: Analyzing trace with hash -1423249653, now seen corresponding path program 1 times
[2023-12-25 18:18:15,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:15,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626450950]
[2023-12-25 18:18:15,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:15,134 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:15,531 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:15,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097678458]
[2023-12-25 18:18:15,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:15,533 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:15,533 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:15,534 INFO  L229       MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:15,536 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process
[2023-12-25 18:18:20,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:20,410 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19588 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:20,457 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:20,923 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 192 proven. 34 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:20,924 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:20,975 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-12-25 18:18:20,975 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:20,975 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626450950]
[2023-12-25 18:18:20,975 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:20,975 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097678458]
[2023-12-25 18:18:20,975 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097678458] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:20,975 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:20,976 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:20,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187560675]
[2023-12-25 18:18:20,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:20,978 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:20,978 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:20,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:20,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:20,980 INFO  L87              Difference]: Start difference. First operand 6471 states and 10545 transitions. Second operand  has 4 states, 4 states have (on average 966.25) internal successors, (3865), 4 states have internal predecessors, (3865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:21,138 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:21,138 INFO  L93              Difference]: Finished difference Result 17537 states and 28596 transitions.
[2023-12-25 18:18:21,139 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:21,140 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 966.25) internal successors, (3865), 4 states have internal predecessors, (3865), 0 states have call successors, (0), 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 4132
[2023-12-25 18:18:21,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:21,153 INFO  L225             Difference]: With dead ends: 17537
[2023-12-25 18:18:21,154 INFO  L226             Difference]: Without dead ends: 11725
[2023-12-25 18:18:21,160 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8263 GetRequests, 8254 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:21,161 INFO  L413           NwaCegarLoop]: 9696 mSDtfsCounter, 8422 mSDsluCounter, 18709 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8422 SdHoareTripleChecker+Valid, 28405 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:21,161 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8422 Valid, 28405 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:21,169 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11725 states.
[2023-12-25 18:18:21,240 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11725 to 6481.
[2023-12-25 18:18:21,245 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6481 states, 6480 states have (on average 1.6291666666666667) internal successors, (10557), 6480 states have internal predecessors, (10557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:21,252 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6481 states to 6481 states and 10557 transitions.
[2023-12-25 18:18:21,252 INFO  L78                 Accepts]: Start accepts. Automaton has 6481 states and 10557 transitions. Word has length 4132
[2023-12-25 18:18:21,254 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:21,254 INFO  L495      AbstractCegarLoop]: Abstraction has 6481 states and 10557 transitions.
[2023-12-25 18:18:21,255 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 966.25) internal successors, (3865), 4 states have internal predecessors, (3865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:21,255 INFO  L276                IsEmpty]: Start isEmpty. Operand 6481 states and 10557 transitions.
[2023-12-25 18:18:21,467 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4134
[2023-12-25 18:18:21,467 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:21,468 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:21,530 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:21,682 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable139
[2023-12-25 18:18:21,682 INFO  L420      AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:21,683 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:21,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -345323033, now seen corresponding path program 1 times
[2023-12-25 18:18:21,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:21,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800466323]
[2023-12-25 18:18:21,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:21,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:22,028 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:22,028 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949404293]
[2023-12-25 18:18:22,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:22,029 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:22,029 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:22,030 INFO  L229       MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:22,033 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process
[2023-12-25 18:18:26,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:27,000 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19591 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 18:18:27,041 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:27,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 196 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:27,516 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:27,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2023-12-25 18:18:27,577 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:27,577 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800466323]
[2023-12-25 18:18:27,577 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:27,577 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949404293]
[2023-12-25 18:18:27,577 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949404293] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:27,577 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:27,578 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 18:18:27,578 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679302334]
[2023-12-25 18:18:27,578 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:27,580 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:18:27,580 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:27,582 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:18:27,582 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:18:27,582 INFO  L87              Difference]: Start difference. First operand 6481 states and 10557 transitions. Second operand  has 5 states, 5 states have (on average 773.8) internal successors, (3869), 5 states have internal predecessors, (3869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:27,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:27,886 INFO  L93              Difference]: Finished difference Result 23386 states and 38103 transitions.
[2023-12-25 18:18:27,886 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 18:18:27,887 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 773.8) internal successors, (3869), 5 states have internal predecessors, (3869), 0 states have call successors, (0), 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 4133
[2023-12-25 18:18:27,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:27,910 INFO  L225             Difference]: With dead ends: 23386
[2023-12-25 18:18:27,910 INFO  L226             Difference]: Without dead ends: 17558
[2023-12-25 18:18:27,921 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8268 GetRequests, 8255 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210
[2023-12-25 18:18:27,921 INFO  L413           NwaCegarLoop]: 18310 mSDtfsCounter, 17045 mSDsluCounter, 45624 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17045 SdHoareTripleChecker+Valid, 63934 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:27,921 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17045 Valid, 63934 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:18:27,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17558 states.
[2023-12-25 18:18:28,026 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17558 to 6491.
[2023-12-25 18:18:28,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6491 states, 6490 states have (on average 1.6285053929121727) internal successors, (10569), 6490 states have internal predecessors, (10569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:28,039 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6491 states to 6491 states and 10569 transitions.
[2023-12-25 18:18:28,039 INFO  L78                 Accepts]: Start accepts. Automaton has 6491 states and 10569 transitions. Word has length 4133
[2023-12-25 18:18:28,041 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:28,041 INFO  L495      AbstractCegarLoop]: Abstraction has 6491 states and 10569 transitions.
[2023-12-25 18:18:28,042 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 773.8) internal successors, (3869), 5 states have internal predecessors, (3869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:28,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 6491 states and 10569 transitions.
[2023-12-25 18:18:28,133 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4135
[2023-12-25 18:18:28,133 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:28,134 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:28,205 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:28,352 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:28,353 INFO  L420      AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:28,353 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:28,353 INFO  L85        PathProgramCache]: Analyzing trace with hash -1343530475, now seen corresponding path program 1 times
[2023-12-25 18:18:28,353 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:28,353 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510545778]
[2023-12-25 18:18:28,354 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:28,354 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:28,744 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:28,744 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540167118]
[2023-12-25 18:18:28,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:28,745 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:28,746 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:28,747 INFO  L229       MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:28,771 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process
[2023-12-25 18:18:33,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:33,305 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19595 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:33,352 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:33,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 200 proven. 26 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:33,814 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:33,864 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked.
[2023-12-25 18:18:33,864 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:33,864 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510545778]
[2023-12-25 18:18:33,865 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:33,865 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540167118]
[2023-12-25 18:18:33,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540167118] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:33,865 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:33,865 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:33,865 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808751213]
[2023-12-25 18:18:33,866 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:33,868 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:33,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:33,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:33,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:33,870 INFO  L87              Difference]: Start difference. First operand 6491 states and 10569 transitions. Second operand  has 4 states, 4 states have (on average 968.25) internal successors, (3873), 4 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:34,037 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:34,037 INFO  L93              Difference]: Finished difference Result 17597 states and 28664 transitions.
[2023-12-25 18:18:34,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:34,039 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 968.25) internal successors, (3873), 4 states have internal predecessors, (3873), 0 states have call successors, (0), 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 4134
[2023-12-25 18:18:34,041 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:34,053 INFO  L225             Difference]: With dead ends: 17597
[2023-12-25 18:18:34,053 INFO  L226             Difference]: Without dead ends: 11753
[2023-12-25 18:18:34,060 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8267 GetRequests, 8258 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:34,060 INFO  L413           NwaCegarLoop]: 9680 mSDtfsCounter, 8416 mSDsluCounter, 18693 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8416 SdHoareTripleChecker+Valid, 28373 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:34,060 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8416 Valid, 28373 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:34,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11753 states.
[2023-12-25 18:18:34,143 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11753 to 6501.
[2023-12-25 18:18:34,149 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6501 states, 6500 states have (on average 1.627846153846154) internal successors, (10581), 6500 states have internal predecessors, (10581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:34,156 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6501 states to 6501 states and 10581 transitions.
[2023-12-25 18:18:34,157 INFO  L78                 Accepts]: Start accepts. Automaton has 6501 states and 10581 transitions. Word has length 4134
[2023-12-25 18:18:34,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:34,159 INFO  L495      AbstractCegarLoop]: Abstraction has 6501 states and 10581 transitions.
[2023-12-25 18:18:34,159 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 968.25) internal successors, (3873), 4 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:34,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 6501 states and 10581 transitions.
[2023-12-25 18:18:34,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4136
[2023-12-25 18:18:34,392 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:34,393 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:34,462 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:34,610 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:34,611 INFO  L420      AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:34,611 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:34,611 INFO  L85        PathProgramCache]: Analyzing trace with hash 1550368601, now seen corresponding path program 1 times
[2023-12-25 18:18:34,611 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:34,612 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081591182]
[2023-12-25 18:18:34,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:34,612 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:34,923 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:34,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506115795]
[2023-12-25 18:18:34,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:34,925 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:34,925 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:34,926 INFO  L229       MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:34,929 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process
[2023-12-25 18:18:39,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:39,813 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19598 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:39,864 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:40,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 204 proven. 22 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:40,481 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:40,540 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2023-12-25 18:18:40,540 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:40,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081591182]
[2023-12-25 18:18:40,540 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:40,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506115795]
[2023-12-25 18:18:40,541 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [506115795] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:40,541 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:40,542 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:40,542 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908922854]
[2023-12-25 18:18:40,542 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:40,545 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:40,545 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:40,547 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:40,547 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:40,548 INFO  L87              Difference]: Start difference. First operand 6501 states and 10581 transitions. Second operand  has 4 states, 4 states have (on average 969.25) internal successors, (3877), 4 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:40,717 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:40,717 INFO  L93              Difference]: Finished difference Result 17627 states and 28698 transitions.
[2023-12-25 18:18:40,717 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:40,718 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 969.25) internal successors, (3877), 4 states have internal predecessors, (3877), 0 states have call successors, (0), 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 4135
[2023-12-25 18:18:40,721 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:40,733 INFO  L225             Difference]: With dead ends: 17627
[2023-12-25 18:18:40,733 INFO  L226             Difference]: Without dead ends: 11767
[2023-12-25 18:18:40,740 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8269 GetRequests, 8260 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:40,741 INFO  L413           NwaCegarLoop]: 9672 mSDtfsCounter, 8413 mSDsluCounter, 18685 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8413 SdHoareTripleChecker+Valid, 28357 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:40,741 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8413 Valid, 28357 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:40,749 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11767 states.
[2023-12-25 18:18:40,820 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 6511.
[2023-12-25 18:18:40,825 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6511 states, 6510 states have (on average 1.627188940092166) internal successors, (10593), 6510 states have internal predecessors, (10593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:40,832 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6511 states to 6511 states and 10593 transitions.
[2023-12-25 18:18:40,833 INFO  L78                 Accepts]: Start accepts. Automaton has 6511 states and 10593 transitions. Word has length 4135
[2023-12-25 18:18:40,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:40,834 INFO  L495      AbstractCegarLoop]: Abstraction has 6511 states and 10593 transitions.
[2023-12-25 18:18:40,835 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 969.25) internal successors, (3877), 4 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:40,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 6511 states and 10593 transitions.
[2023-12-25 18:18:40,928 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4137
[2023-12-25 18:18:40,929 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:40,930 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:41,011 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:41,152 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable142
[2023-12-25 18:18:41,152 INFO  L420      AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:41,153 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:41,153 INFO  L85        PathProgramCache]: Analyzing trace with hash 1943973279, now seen corresponding path program 1 times
[2023-12-25 18:18:41,153 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:41,153 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548519734]
[2023-12-25 18:18:41,153 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:41,154 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:41,450 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:41,450 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622670403]
[2023-12-25 18:18:41,451 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:41,451 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:41,451 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:41,452 INFO  L229       MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:41,454 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process
[2023-12-25 18:18:46,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:46,332 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19602 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:46,381 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:46,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 208 proven. 18 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:46,844 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:46,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2023-12-25 18:18:46,892 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:46,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548519734]
[2023-12-25 18:18:46,892 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:46,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622670403]
[2023-12-25 18:18:46,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [622670403] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:46,892 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:46,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:46,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273786790]
[2023-12-25 18:18:46,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:46,895 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:46,895 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:46,897 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:46,897 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:46,898 INFO  L87              Difference]: Start difference. First operand 6511 states and 10593 transitions. Second operand  has 4 states, 4 states have (on average 970.25) internal successors, (3881), 4 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:47,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:47,060 INFO  L93              Difference]: Finished difference Result 17657 states and 28732 transitions.
[2023-12-25 18:18:47,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:47,061 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 970.25) internal successors, (3881), 4 states have internal predecessors, (3881), 0 states have call successors, (0), 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 4136
[2023-12-25 18:18:47,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:47,075 INFO  L225             Difference]: With dead ends: 17657
[2023-12-25 18:18:47,075 INFO  L226             Difference]: Without dead ends: 11781
[2023-12-25 18:18:47,084 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8271 GetRequests, 8262 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:47,084 INFO  L413           NwaCegarLoop]: 9664 mSDtfsCounter, 8410 mSDsluCounter, 18677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8410 SdHoareTripleChecker+Valid, 28341 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:47,084 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8410 Valid, 28341 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:47,093 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11781 states.
[2023-12-25 18:18:47,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11781 to 6521.
[2023-12-25 18:18:47,177 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6521 states, 6520 states have (on average 1.6265337423312884) internal successors, (10605), 6520 states have internal predecessors, (10605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:47,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 10605 transitions.
[2023-12-25 18:18:47,185 INFO  L78                 Accepts]: Start accepts. Automaton has 6521 states and 10605 transitions. Word has length 4136
[2023-12-25 18:18:47,187 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:47,187 INFO  L495      AbstractCegarLoop]: Abstraction has 6521 states and 10605 transitions.
[2023-12-25 18:18:47,188 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 970.25) internal successors, (3881), 4 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:47,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 6521 states and 10605 transitions.
[2023-12-25 18:18:47,279 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4138
[2023-12-25 18:18:47,280 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:47,281 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:47,353 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0
[2023-12-25 18:18:47,508 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143,77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:47,509 INFO  L420      AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:47,509 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:47,509 INFO  L85        PathProgramCache]: Analyzing trace with hash 1278738763, now seen corresponding path program 1 times
[2023-12-25 18:18:47,509 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:47,509 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863339892]
[2023-12-25 18:18:47,510 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:47,510 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:47,907 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:47,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273758423]
[2023-12-25 18:18:47,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:47,908 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:47,908 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:47,909 INFO  L229       MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:47,911 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process
[2023-12-25 18:18:52,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:52,720 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19605 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:52,770 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:53,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 212 proven. 14 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:53,360 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:53,408 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked.
[2023-12-25 18:18:53,409 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:53,409 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863339892]
[2023-12-25 18:18:53,409 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:53,409 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273758423]
[2023-12-25 18:18:53,409 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273758423] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:53,409 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:53,410 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:53,410 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431945784]
[2023-12-25 18:18:53,410 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:53,412 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:53,412 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:53,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:53,414 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:53,414 INFO  L87              Difference]: Start difference. First operand 6521 states and 10605 transitions. Second operand  has 4 states, 4 states have (on average 971.25) internal successors, (3885), 4 states have internal predecessors, (3885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:53,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:53,584 INFO  L93              Difference]: Finished difference Result 17687 states and 28766 transitions.
[2023-12-25 18:18:53,584 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:53,585 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 971.25) internal successors, (3885), 4 states have internal predecessors, (3885), 0 states have call successors, (0), 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 4137
[2023-12-25 18:18:53,588 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:53,601 INFO  L225             Difference]: With dead ends: 17687
[2023-12-25 18:18:53,602 INFO  L226             Difference]: Without dead ends: 11795
[2023-12-25 18:18:53,609 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8273 GetRequests, 8264 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:53,610 INFO  L413           NwaCegarLoop]: 9656 mSDtfsCounter, 8407 mSDsluCounter, 18669 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8407 SdHoareTripleChecker+Valid, 28325 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:53,610 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8407 Valid, 28325 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:53,619 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11795 states.
[2023-12-25 18:18:53,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11795 to 6531.
[2023-12-25 18:18:53,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6531 states, 6530 states have (on average 1.6258805513016845) internal successors, (10617), 6530 states have internal predecessors, (10617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:53,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6531 states to 6531 states and 10617 transitions.
[2023-12-25 18:18:53,709 INFO  L78                 Accepts]: Start accepts. Automaton has 6531 states and 10617 transitions. Word has length 4137
[2023-12-25 18:18:53,711 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:53,711 INFO  L495      AbstractCegarLoop]: Abstraction has 6531 states and 10617 transitions.
[2023-12-25 18:18:53,712 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 971.25) internal successors, (3885), 4 states have internal predecessors, (3885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:53,712 INFO  L276                IsEmpty]: Start isEmpty. Operand 6531 states and 10617 transitions.
[2023-12-25 18:18:53,806 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4139
[2023-12-25 18:18:53,806 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:18:53,807 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:18:53,879 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0
[2023-12-25 18:18:54,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144,78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:54,029 INFO  L420      AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:18:54,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:18:54,030 INFO  L85        PathProgramCache]: Analyzing trace with hash 673515945, now seen corresponding path program 1 times
[2023-12-25 18:18:54,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:18:54,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797288384]
[2023-12-25 18:18:54,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:54,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:18:54,417 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:18:54,418 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56336867]
[2023-12-25 18:18:54,419 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:18:54,419 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:18:54,419 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:18:54,420 INFO  L229       MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:18:54,422 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process
[2023-12-25 18:18:58,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:18:59,010 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19609 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:18:59,061 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:18:59,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 216 proven. 10 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:18:59,629 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:18:59,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2023-12-25 18:18:59,681 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:18:59,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797288384]
[2023-12-25 18:18:59,681 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:18:59,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56336867]
[2023-12-25 18:18:59,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [56336867] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:18:59,681 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:18:59,682 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:18:59,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428849072]
[2023-12-25 18:18:59,682 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:18:59,684 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:18:59,684 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:18:59,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:18:59,686 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:18:59,686 INFO  L87              Difference]: Start difference. First operand 6531 states and 10617 transitions. Second operand  has 4 states, 4 states have (on average 972.25) internal successors, (3889), 4 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:59,852 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:18:59,852 INFO  L93              Difference]: Finished difference Result 17717 states and 28800 transitions.
[2023-12-25 18:18:59,853 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:18:59,854 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 972.25) internal successors, (3889), 4 states have internal predecessors, (3889), 0 states have call successors, (0), 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 4138
[2023-12-25 18:18:59,856 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:18:59,869 INFO  L225             Difference]: With dead ends: 17717
[2023-12-25 18:18:59,870 INFO  L226             Difference]: Without dead ends: 11809
[2023-12-25 18:18:59,878 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8275 GetRequests, 8266 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:18:59,879 INFO  L413           NwaCegarLoop]: 9648 mSDtfsCounter, 8404 mSDsluCounter, 18661 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8404 SdHoareTripleChecker+Valid, 28309 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:18:59,879 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8404 Valid, 28309 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:18:59,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11809 states.
[2023-12-25 18:18:59,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11809 to 6541.
[2023-12-25 18:18:59,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6541 states, 6540 states have (on average 1.6252293577981651) internal successors, (10629), 6540 states have internal predecessors, (10629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:59,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6541 states to 6541 states and 10629 transitions.
[2023-12-25 18:18:59,980 INFO  L78                 Accepts]: Start accepts. Automaton has 6541 states and 10629 transitions. Word has length 4138
[2023-12-25 18:18:59,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:18:59,982 INFO  L495      AbstractCegarLoop]: Abstraction has 6541 states and 10629 transitions.
[2023-12-25 18:18:59,982 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 972.25) internal successors, (3889), 4 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:18:59,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 6541 states and 10629 transitions.
[2023-12-25 18:19:00,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4140
[2023-12-25 18:19:00,079 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:19:00,080 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:19:00,151 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0
[2023-12-25 18:19:00,295 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145,79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:19:00,296 INFO  L420      AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:19:00,296 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:19:00,296 INFO  L85        PathProgramCache]: Analyzing trace with hash -1764610115, now seen corresponding path program 1 times
[2023-12-25 18:19:00,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:19:00,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857306380]
[2023-12-25 18:19:00,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:00,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:19:00,591 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:19:00,591 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494848181]
[2023-12-25 18:19:00,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:00,592 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:19:00,592 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:19:00,593 INFO  L229       MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:19:00,616 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process
[2023-12-25 18:19:05,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:19:05,794 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19612 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:19:05,840 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:19:06,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 220 proven. 6 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:19:06,241 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:19:06,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2023-12-25 18:19:06,289 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:19:06,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857306380]
[2023-12-25 18:19:06,289 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:19:06,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494848181]
[2023-12-25 18:19:06,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494848181] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:19:06,289 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:19:06,290 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:19:06,290 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821901477]
[2023-12-25 18:19:06,290 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:19:06,292 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:19:06,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:19:06,293 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:19:06,294 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:19:06,294 INFO  L87              Difference]: Start difference. First operand 6541 states and 10629 transitions. Second operand  has 4 states, 4 states have (on average 973.25) internal successors, (3893), 4 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:06,483 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:19:06,483 INFO  L93              Difference]: Finished difference Result 17747 states and 28834 transitions.
[2023-12-25 18:19:06,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:19:06,484 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 973.25) internal successors, (3893), 4 states have internal predecessors, (3893), 0 states have call successors, (0), 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 4139
[2023-12-25 18:19:06,486 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:19:06,496 INFO  L225             Difference]: With dead ends: 17747
[2023-12-25 18:19:06,496 INFO  L226             Difference]: Without dead ends: 11823
[2023-12-25 18:19:06,502 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8277 GetRequests, 8268 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 18:19:06,502 INFO  L413           NwaCegarLoop]: 9640 mSDtfsCounter, 8401 mSDsluCounter, 18653 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8401 SdHoareTripleChecker+Valid, 28293 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:19:06,502 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8401 Valid, 28293 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:19:06,509 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11823 states.
[2023-12-25 18:19:06,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 6551.
[2023-12-25 18:19:06,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6551 states, 6550 states have (on average 1.6245801526717558) internal successors, (10641), 6550 states have internal predecessors, (10641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:06,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6551 states to 6551 states and 10641 transitions.
[2023-12-25 18:19:06,588 INFO  L78                 Accepts]: Start accepts. Automaton has 6551 states and 10641 transitions. Word has length 4139
[2023-12-25 18:19:06,590 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:19:06,590 INFO  L495      AbstractCegarLoop]: Abstraction has 6551 states and 10641 transitions.
[2023-12-25 18:19:06,591 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 973.25) internal successors, (3893), 4 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:06,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 6551 states and 10641 transitions.
[2023-12-25 18:19:06,744 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4141
[2023-12-25 18:19:06,744 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:19:06,745 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:19:06,832 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0
[2023-12-25 18:19:06,960 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable146
[2023-12-25 18:19:06,960 INFO  L420      AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:19:06,960 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:19:06,961 INFO  L85        PathProgramCache]: Analyzing trace with hash -49902029, now seen corresponding path program 1 times
[2023-12-25 18:19:06,961 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:19:06,961 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947237487]
[2023-12-25 18:19:06,961 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:06,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:19:07,265 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:19:07,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860277668]
[2023-12-25 18:19:07,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:07,266 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:19:07,266 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:19:07,267 INFO  L229       MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:19:07,269 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process
[2023-12-25 18:19:11,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:19:12,147 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19616 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 18:19:12,192 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:19:12,718 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:19:12,718 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:19:12,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 472 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:19:12,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:19:12,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947237487]
[2023-12-25 18:19:12,766 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:19:12,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860277668]
[2023-12-25 18:19:12,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [860277668] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:19:12,766 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:19:12,766 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10
[2023-12-25 18:19:12,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517946460]
[2023-12-25 18:19:12,766 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:19:12,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 18:19:12,769 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:19:12,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 18:19:12,771 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:19:12,771 INFO  L87              Difference]: Start difference. First operand 6551 states and 10641 transitions. Second operand  has 4 states, 4 states have (on average 973.75) internal successors, (3895), 4 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:12,960 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:19:12,961 INFO  L93              Difference]: Finished difference Result 17091 states and 28012 transitions.
[2023-12-25 18:19:12,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 18:19:12,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 973.75) internal successors, (3895), 4 states have internal predecessors, (3895), 0 states have call successors, (0), 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 4140
[2023-12-25 18:19:12,964 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:19:12,976 INFO  L225             Difference]: With dead ends: 17091
[2023-12-25 18:19:12,976 INFO  L226             Difference]: Without dead ends: 11651
[2023-12-25 18:19:12,982 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8278 GetRequests, 8270 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-25 18:19:12,982 INFO  L413           NwaCegarLoop]: 17355 mSDtfsCounter, 8395 mSDsluCounter, 26365 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8395 SdHoareTripleChecker+Valid, 43720 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 18:19:12,983 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8395 Valid, 43720 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 18:19:12,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11651 states.
[2023-12-25 18:19:13,058 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11651 to 6553.
[2023-12-25 18:19:13,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6553 states, 6552 states have (on average 1.6243894993894994) internal successors, (10643), 6552 states have internal predecessors, (10643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:13,070 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 10643 transitions.
[2023-12-25 18:19:13,070 INFO  L78                 Accepts]: Start accepts. Automaton has 6553 states and 10643 transitions. Word has length 4140
[2023-12-25 18:19:13,072 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:19:13,072 INFO  L495      AbstractCegarLoop]: Abstraction has 6553 states and 10643 transitions.
[2023-12-25 18:19:13,073 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 973.75) internal successors, (3895), 4 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:13,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 6553 states and 10643 transitions.
[2023-12-25 18:19:13,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4142
[2023-12-25 18:19:13,193 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:19:13,194 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:19:13,265 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0
[2023-12-25 18:19:13,420 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable147
[2023-12-25 18:19:13,420 INFO  L420      AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:19:13,421 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:19:13,421 INFO  L85        PathProgramCache]: Analyzing trace with hash -1020547691, now seen corresponding path program 1 times
[2023-12-25 18:19:13,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:19:13,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858288995]
[2023-12-25 18:19:13,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:13,422 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:19:13,784 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:19:13,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [714313362]
[2023-12-25 18:19:13,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:13,785 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:19:13,785 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:19:13,787 INFO  L229       MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:19:13,788 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process
[2023-12-25 18:19:18,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 18:19:18,813 INFO  L262         TraceCheckSpWp]: Trace formula consists of 19619 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 18:19:18,865 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 18:19:19,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 473 backedges. 220 proven. 7 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 18:19:19,441 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 18:19:19,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 473 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked.
[2023-12-25 18:19:19,635 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 18:19:19,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858288995]
[2023-12-25 18:19:19,636 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 18:19:19,636 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714313362]
[2023-12-25 18:19:19,636 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [714313362] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 18:19:19,636 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 18:19:19,636 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 18:19:19,636 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740791040]
[2023-12-25 18:19:19,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 18:19:19,639 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 18:19:19,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 18:19:19,641 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 18:19:19,641 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:19:19,641 INFO  L87              Difference]: Start difference. First operand 6553 states and 10643 transitions. Second operand  has 5 states, 5 states have (on average 778.6) internal successors, (3893), 5 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:19,975 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 18:19:19,975 INFO  L93              Difference]: Finished difference Result 23017 states and 37618 transitions.
[2023-12-25 18:19:19,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 18:19:19,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 778.6) internal successors, (3893), 5 states have internal predecessors, (3893), 0 states have call successors, (0), 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 4141
[2023-12-25 18:19:19,979 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 18:19:20,003 INFO  L225             Difference]: With dead ends: 23017
[2023-12-25 18:19:20,003 INFO  L226             Difference]: Without dead ends: 17575
[2023-12-25 18:19:20,016 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8280 GetRequests, 8270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-25 18:19:20,017 INFO  L413           NwaCegarLoop]: 25985 mSDtfsCounter, 17022 mSDsluCounter, 60968 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17022 SdHoareTripleChecker+Valid, 86953 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 18:19:20,017 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17022 Valid, 86953 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 18:19:20,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17575 states.
[2023-12-25 18:19:20,144 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17575 to 6553.
[2023-12-25 18:19:20,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6553 states, 6552 states have (on average 1.6243894993894994) internal successors, (10643), 6552 states have internal predecessors, (10643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:20,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 10643 transitions.
[2023-12-25 18:19:20,159 INFO  L78                 Accepts]: Start accepts. Automaton has 6553 states and 10643 transitions. Word has length 4141
[2023-12-25 18:19:20,161 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 18:19:20,161 INFO  L495      AbstractCegarLoop]: Abstraction has 6553 states and 10643 transitions.
[2023-12-25 18:19:20,162 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 778.6) internal successors, (3893), 5 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 18:19:20,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 6553 states and 10643 transitions.
[2023-12-25 18:19:20,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4143
[2023-12-25 18:19:20,259 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 18:19:20,260 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 18:19:20,338 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0
[2023-12-25 18:19:20,476 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable148
[2023-12-25 18:19:20,477 INFO  L420      AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 18:19:20,477 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 18:19:20,477 INFO  L85        PathProgramCache]: Analyzing trace with hash 1008596343, now seen corresponding path program 1 times
[2023-12-25 18:19:20,477 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 18:19:20,477 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458018047]
[2023-12-25 18:19:20,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:20,478 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 18:19:20,950 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 18:19:20,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101325282]
[2023-12-25 18:19:20,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 18:19:20,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 18:19:20,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 18:19:20,955 INFO  L229       MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 18:19:20,976 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process
Received shutdown request...
[2023-12-25 18:19:23,831 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 18:19:23,850 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 18:19:24,832 ERROR L246   FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user
[2023-12-25 18:19:24,834 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 18:19:24,924 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0
[2023-12-25 18:19:25,035 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149
[2023-12-25 18:19:25,035 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 4143 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during CAMEL.
[2023-12-25 18:19:25,039 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 18:19:25,041 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 18:19:25,042 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 06:19:25 BoogieIcfgContainer
[2023-12-25 18:19:25,042 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 18:19:25,042 INFO  L158              Benchmark]: Toolchain (without parser) took 829208.29ms. Allocated memory was 218.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 156.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB.
[2023-12-25 18:19:25,042 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 160.4MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 18:19:25,043 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1635.86ms. Allocated memory was 218.1MB in the beginning and 436.2MB in the end (delta: 218.1MB). Free memory was 156.4MB in the beginning and 278.7MB in the end (delta: -122.3MB). Peak memory consumption was 125.1MB. Max. memory is 8.0GB.
[2023-12-25 18:19:25,043 INFO  L158              Benchmark]: Boogie Procedure Inliner took 2344.37ms. Allocated memory was 436.2MB in the beginning and 935.3MB in the end (delta: 499.1MB). Free memory was 278.7MB in the beginning and 562.3MB in the end (delta: -283.6MB). Peak memory consumption was 296.7MB. Max. memory is 8.0GB.
[2023-12-25 18:19:25,043 INFO  L158              Benchmark]: Boogie Preprocessor took 2503.09ms. Allocated memory was 935.3MB in the beginning and 2.7GB in the end (delta: 1.8GB). Free memory was 562.3MB in the beginning and 2.2GB in the end (delta: -1.6GB). Peak memory consumption was 199.2MB. Max. memory is 8.0GB.
[2023-12-25 18:19:25,043 INFO  L158              Benchmark]: RCFGBuilder took 10524.01ms. Allocated memory was 2.7GB in the beginning and 3.9GB in the end (delta: 1.2GB). Free memory was 2.2GB in the beginning and 3.3GB in the end (delta: -1.1GB). Peak memory consumption was 578.3MB. Max. memory is 8.0GB.
[2023-12-25 18:19:25,043 INFO  L158              Benchmark]: TraceAbstraction took 812195.28ms. Allocated memory is still 3.9GB. Free memory was 3.3GB in the beginning and 2.9GB in the end (delta: 378.8MB). Peak memory consumption was 913.8MB. Max. memory is 8.0GB.
[2023-12-25 18:19:25,043 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
[2023-12-25 18:19:25,050 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 160.4MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1635.86ms. Allocated memory was 218.1MB in the beginning and 436.2MB in the end (delta: 218.1MB). Free memory was 156.4MB in the beginning and 278.7MB in the end (delta: -122.3MB). Peak memory consumption was 125.1MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 2344.37ms. Allocated memory was 436.2MB in the beginning and 935.3MB in the end (delta: 499.1MB). Free memory was 278.7MB in the beginning and 562.3MB in the end (delta: -283.6MB). Peak memory consumption was 296.7MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 2503.09ms. Allocated memory was 935.3MB in the beginning and 2.7GB in the end (delta: 1.8GB). Free memory was 562.3MB in the beginning and 2.2GB in the end (delta: -1.6GB). Peak memory consumption was 199.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 10524.01ms. Allocated memory was 2.7GB in the beginning and 3.9GB in the end (delta: 1.2GB). Free memory was 2.2GB in the beginning and 3.3GB in the end (delta: -1.1GB). Peak memory consumption was 578.3MB. Max. memory is 8.0GB.
 * TraceAbstraction took 812195.28ms. Allocated memory is still 3.9GB. Free memory was 3.3GB in the beginning and 2.9GB in the end (delta: 378.8MB). Peak memory consumption was 913.8MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 4143 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during CAMEL.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 5413 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 812.1s, OverallIterations: 150, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 9.6s, AutomataDifference: 249.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2589532 SdHoareTripleChecker+Valid, 217.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2589532 mSDsluCounter, 4235284 SdHoareTripleChecker+Invalid, 182.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2864327 mSDsCounter, 3098 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 340375 IncrementalHoareTripleChecker+Invalid, 343473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3098 mSolverCounterUnsat, 1370957 mSDtfsCounter, 340375 mSolverCounterSat, 7.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 648616 GetRequests, 647492 SyntacticMatches, 0 SemanticMatches, 1124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6553occurred in iteration=148, InterpolantAutomatonStates: 787, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.8s AutomataMinimizationTime, 149 MinimizatonAttempts, 748942 StatesRemovedByMinimization, 148 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 91.8s SsaConstructionTime, 236.7s SatisfiabilityAnalysisTime, 104.8s InterpolantComputationTime, 376329 NumberOfCodeBlocks, 376329 NumberOfCodeBlocksAsserted, 149 NumberOfCheckSat, 692034 ConstructedInterpolants, 0 QuantifiedInterpolants, 972439 SizeOfPredicates, 470 NumberOfNonLiveVariables, 1578461 ConjunctsInSsa, 1497 ConjunctsInUnsatCore, 226 InterpolantComputations, 149 PerfectInterpolantSequences, 64731/74578 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown