/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.at.6.prop1-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 14:17:16,309 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 14:17:16,388 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 14:17:16,391 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 14:17:16,392 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 14:17:16,412 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 14:17:16,413 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 14:17:16,413 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 14:17:16,413 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 14:17:16,414 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 14:17:16,414 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 14:17:16,414 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 14:17:16,414 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 14:17:16,415 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 14:17:16,415 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 14:17:16,415 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 14:17:16,415 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 14:17:16,416 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 14:17:16,416 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 14:17:16,416 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 14:17:16,416 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 14:17:16,417 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 14:17:16,417 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 14:17:16,417 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 14:17:16,417 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 14:17:16,417 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 14:17:16,417 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 14:17:16,418 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 14:17:16,418 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 14:17:16,418 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 14:17:16,418 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 14:17:16,418 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 14:17:16,419 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 14:17:16,419 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 14:17:16,419 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 14:17:16,419 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 14:17:16,420 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 14:17:16,420 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 14:17:16,420 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 14:17:16,420 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 14:17:16,420 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 14:17:16,608 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 14:17:16,629 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 14:17:16,631 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 14:17:16,632 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 14:17:16,633 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 14:17:16,634 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.6.prop1-back-serstep.c
[2023-12-25 14:17:17,603 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 14:17:17,892 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 14:17:17,892 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.6.prop1-back-serstep.c
[2023-12-25 14:17:17,913 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a42745b4/e27d1da85a77412d99688f40d13ae9c9/FLAGbbf7253b5
[2023-12-25 14:17:17,925 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a42745b4/e27d1da85a77412d99688f40d13ae9c9
[2023-12-25 14:17:17,927 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 14:17:17,928 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 14:17:17,929 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 14:17:17,929 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 14:17:17,932 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 14:17:17,932 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:17:17" (1/1) ...
[2023-12-25 14:17:17,933 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e39c71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:17, skipping insertion in model container
[2023-12-25 14:17:17,933 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:17:17" (1/1) ...
[2023-12-25 14:17:17,991 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 14:17:18,145 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.at.6.prop1-back-serstep.c[1170,1183]
[2023-12-25 14:17:18,680 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 14:17:18,689 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 14:17:18,697 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.at.6.prop1-back-serstep.c[1170,1183]
[2023-12-25 14:17:19,089 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 14:17:19,099 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 14:17:19,099 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19 WrapperNode
[2023-12-25 14:17:19,100 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 14:17:19,100 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 14:17:19,100 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 14:17:19,101 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 14:17:19,105 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:19,207 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:20,393 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19163
[2023-12-25 14:17:20,394 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 14:17:20,394 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 14:17:20,394 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 14:17:20,394 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 14:17:20,403 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:20,409 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:20,767 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:21,055 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 14:17:21,055 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:21,055 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:21,621 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:21,686 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:21,769 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:21,824 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:22,136 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 14:17:22,137 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 14:17:22,137 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 14:17:22,137 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 14:17:22,138 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (1/1) ...
[2023-12-25 14:17:22,142 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 14:17:22,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:17:22,189 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 14:17:22,239 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 14:17:22,245 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 14:17:22,245 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 14:17:22,245 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 14:17:22,246 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 14:17:23,078 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 14:17:23,080 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 14:17:29,739 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 14:17:29,922 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 14:17:29,922 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 14:17:29,923 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:17:29 BoogieIcfgContainer
[2023-12-25 14:17:29,923 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 14:17:29,924 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 14:17:29,924 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 14:17:29,927 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 14:17:29,927 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 02:17:17" (1/3) ...
[2023-12-25 14:17:29,927 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf0cd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:17:29, skipping insertion in model container
[2023-12-25 14:17:29,927 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:17:19" (2/3) ...
[2023-12-25 14:17:29,928 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf0cd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:17:29, skipping insertion in model container
[2023-12-25 14:17:29,928 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:17:29" (3/3) ...
[2023-12-25 14:17:29,928 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.at.6.prop1-back-serstep.c
[2023-12-25 14:17:29,939 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 14:17:29,939 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 14:17:30,002 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 14:17:30,006 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;@4d0e552c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 14:17:30,006 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 14:17:30,017 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4250 states, 4248 states have (on average 1.6666666666666667) internal successors, (7080), 4249 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:30,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 667
[2023-12-25 14:17:30,205 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:30,206 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 14:17:30,207 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:30,210 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:30,210 INFO  L85        PathProgramCache]: Analyzing trace with hash -455754560, now seen corresponding path program 1 times
[2023-12-25 14:17:30,216 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:30,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766719543]
[2023-12-25 14:17:30,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:30,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:30,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:32,365 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 14:17:32,365 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:32,366 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766719543]
[2023-12-25 14:17:32,366 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766719543] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:32,366 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:32,366 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:32,367 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401669173]
[2023-12-25 14:17:32,368 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:32,373 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:32,373 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:32,396 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:32,396 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:32,404 INFO  L87              Difference]: Start difference. First operand  has 4250 states, 4248 states have (on average 1.6666666666666667) internal successors, (7080), 4249 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 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 14:17:32,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:32,567 INFO  L93              Difference]: Finished difference Result 8286 states and 13806 transitions.
[2023-12-25 14:17:32,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:32,569 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 14:17:32,571 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:32,590 INFO  L225             Difference]: With dead ends: 8286
[2023-12-25 14:17:32,590 INFO  L226             Difference]: Without dead ends: 4250
[2023-12-25 14:17:32,597 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 14:17:32,600 INFO  L413           NwaCegarLoop]: 7073 mSDtfsCounter, 1 mSDsluCounter, 14141 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21214 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 14:17:32,600 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21214 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:32,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4250 states.
[2023-12-25 14:17:32,687 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 4250.
[2023-12-25 14:17:32,693 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4250 states, 4249 states have (on average 1.6658037185220052) internal successors, (7078), 4249 states have internal predecessors, (7078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:32,700 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 7078 transitions.
[2023-12-25 14:17:32,701 INFO  L78                 Accepts]: Start accepts. Automaton has 4250 states and 7078 transitions. Word has length 666
[2023-12-25 14:17:32,702 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:32,702 INFO  L495      AbstractCegarLoop]: Abstraction has 4250 states and 7078 transitions.
[2023-12-25 14:17:32,702 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 14:17:32,702 INFO  L276                IsEmpty]: Start isEmpty. Operand 4250 states and 7078 transitions.
[2023-12-25 14:17:32,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 668
[2023-12-25 14:17:32,709 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:32,710 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 14:17:32,710 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 14:17:32,710 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:32,710 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:32,711 INFO  L85        PathProgramCache]: Analyzing trace with hash -1241760552, now seen corresponding path program 1 times
[2023-12-25 14:17:32,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:32,711 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713860304]
[2023-12-25 14:17:32,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:32,711 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:33,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:33,654 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 14:17:33,655 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:33,655 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713860304]
[2023-12-25 14:17:33,655 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713860304] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:33,655 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:33,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:33,655 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763311071]
[2023-12-25 14:17:33,656 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:33,658 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:33,660 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:33,661 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:33,661 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:33,662 INFO  L87              Difference]: Start difference. First operand 4250 states and 7078 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 14:17:33,758 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:33,759 INFO  L93              Difference]: Finished difference Result 8289 states and 13804 transitions.
[2023-12-25 14:17:33,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:33,760 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 14:17:33,761 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:33,772 INFO  L225             Difference]: With dead ends: 8289
[2023-12-25 14:17:33,772 INFO  L226             Difference]: Without dead ends: 4253
[2023-12-25 14:17:33,778 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 14:17:33,779 INFO  L413           NwaCegarLoop]: 7073 mSDtfsCounter, 1 mSDsluCounter, 14139 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21212 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 14:17:33,779 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21212 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:33,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4253 states.
[2023-12-25 14:17:33,824 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4252.
[2023-12-25 14:17:33,830 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4252 states, 4251 states have (on average 1.6654904728299225) internal successors, (7080), 4251 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:33,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4252 states to 4252 states and 7080 transitions.
[2023-12-25 14:17:33,838 INFO  L78                 Accepts]: Start accepts. Automaton has 4252 states and 7080 transitions. Word has length 667
[2023-12-25 14:17:33,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:33,839 INFO  L495      AbstractCegarLoop]: Abstraction has 4252 states and 7080 transitions.
[2023-12-25 14:17:33,839 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 14:17:33,839 INFO  L276                IsEmpty]: Start isEmpty. Operand 4252 states and 7080 transitions.
[2023-12-25 14:17:33,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 669
[2023-12-25 14:17:33,848 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:33,848 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 14:17:33,848 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 14:17:33,848 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:33,849 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:33,849 INFO  L85        PathProgramCache]: Analyzing trace with hash 1724707420, now seen corresponding path program 1 times
[2023-12-25 14:17:33,849 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:33,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843561589]
[2023-12-25 14:17:33,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:33,850 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:34,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:34,816 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 14:17:34,816 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:34,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843561589]
[2023-12-25 14:17:34,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843561589] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:34,817 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:34,817 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:34,817 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286805160]
[2023-12-25 14:17:34,817 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:34,818 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:34,818 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:34,819 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:34,820 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:34,821 INFO  L87              Difference]: Start difference. First operand 4252 states and 7080 transitions. Second operand  has 4 states, 4 states have (on average 167.0) 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 14:17:34,973 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:34,974 INFO  L93              Difference]: Finished difference Result 12322 states and 20519 transitions.
[2023-12-25 14:17:34,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:34,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 167.0) 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 14:17:34,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:34,996 INFO  L225             Difference]: With dead ends: 12322
[2023-12-25 14:17:34,997 INFO  L226             Difference]: Without dead ends: 8284
[2023-12-25 14:17:35,004 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:35,006 INFO  L413           NwaCegarLoop]: 8363 mSDtfsCounter, 6711 mSDsluCounter, 15427 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6711 SdHoareTripleChecker+Valid, 23790 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 14:17:35,007 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6711 Valid, 23790 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:35,014 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8284 states.
[2023-12-25 14:17:35,074 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 4254.
[2023-12-25 14:17:35,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4254 states, 4253 states have (on average 1.6651775217493534) internal successors, (7082), 4253 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:35,096 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 7082 transitions.
[2023-12-25 14:17:35,096 INFO  L78                 Accepts]: Start accepts. Automaton has 4254 states and 7082 transitions. Word has length 668
[2023-12-25 14:17:35,097 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:35,097 INFO  L495      AbstractCegarLoop]: Abstraction has 4254 states and 7082 transitions.
[2023-12-25 14:17:35,098 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 167.0) 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 14:17:35,098 INFO  L276                IsEmpty]: Start isEmpty. Operand 4254 states and 7082 transitions.
[2023-12-25 14:17:35,106 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 670
[2023-12-25 14:17:35,107 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:35,110 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, 1]
[2023-12-25 14:17:35,110 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 14:17:35,110 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:35,110 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:35,111 INFO  L85        PathProgramCache]: Analyzing trace with hash 1815619904, now seen corresponding path program 1 times
[2023-12-25 14:17:35,111 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:35,111 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691312794]
[2023-12-25 14:17:35,111 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:35,111 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:35,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:35,896 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 14:17:35,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:35,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691312794]
[2023-12-25 14:17:35,897 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691312794] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:35,897 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:35,897 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:35,897 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178594597]
[2023-12-25 14:17:35,897 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:35,898 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:35,898 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:35,899 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:35,899 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:35,900 INFO  L87              Difference]: Start difference. First operand 4254 states and 7082 transitions. Second operand  has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:36,114 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:36,114 INFO  L93              Difference]: Finished difference Result 12325 states and 20520 transitions.
[2023-12-25 14:17:36,114 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:36,115 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 669
[2023-12-25 14:17:36,115 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:36,145 INFO  L225             Difference]: With dead ends: 12325
[2023-12-25 14:17:36,145 INFO  L226             Difference]: Without dead ends: 8285
[2023-12-25 14:17:36,150 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:36,154 INFO  L413           NwaCegarLoop]: 8358 mSDtfsCounter, 6708 mSDsluCounter, 15422 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6708 SdHoareTripleChecker+Valid, 23780 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 14:17:36,155 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6708 Valid, 23780 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:36,162 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8285 states.
[2023-12-25 14:17:36,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8285 to 4256.
[2023-12-25 14:17:36,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4256 states, 4255 states have (on average 1.664864864864865) internal successors, (7084), 4255 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:36,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 7084 transitions.
[2023-12-25 14:17:36,225 INFO  L78                 Accepts]: Start accepts. Automaton has 4256 states and 7084 transitions. Word has length 669
[2023-12-25 14:17:36,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:36,225 INFO  L495      AbstractCegarLoop]: Abstraction has 4256 states and 7084 transitions.
[2023-12-25 14:17:36,226 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:36,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 4256 states and 7084 transitions.
[2023-12-25 14:17:36,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 671
[2023-12-25 14:17:36,229 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:36,230 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, 1, 1]
[2023-12-25 14:17:36,230 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 14:17:36,230 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:36,230 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:36,230 INFO  L85        PathProgramCache]: Analyzing trace with hash 250842998, now seen corresponding path program 1 times
[2023-12-25 14:17:36,231 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:36,231 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978395863]
[2023-12-25 14:17:36,231 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:36,231 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:36,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:37,089 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 14:17:37,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:37,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978395863]
[2023-12-25 14:17:37,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978395863] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:37,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:37,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:37,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462758911]
[2023-12-25 14:17:37,090 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:37,091 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:37,092 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:37,093 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:37,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:37,093 INFO  L87              Difference]: Start difference. First operand 4256 states and 7084 transitions. Second operand  has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:37,233 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:37,233 INFO  L93              Difference]: Finished difference Result 12328 states and 20521 transitions.
[2023-12-25 14:17:37,233 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:37,234 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 670
[2023-12-25 14:17:37,235 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:37,246 INFO  L225             Difference]: With dead ends: 12328
[2023-12-25 14:17:37,246 INFO  L226             Difference]: Without dead ends: 8286
[2023-12-25 14:17:37,251 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:37,253 INFO  L413           NwaCegarLoop]: 8353 mSDtfsCounter, 6705 mSDsluCounter, 15417 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6705 SdHoareTripleChecker+Valid, 23770 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 14:17:37,253 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6705 Valid, 23770 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:37,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8286 states.
[2023-12-25 14:17:37,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 4258.
[2023-12-25 14:17:37,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4258 states, 4257 states have (on average 1.6645525017618041) internal successors, (7086), 4257 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:37,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 7086 transitions.
[2023-12-25 14:17:37,321 INFO  L78                 Accepts]: Start accepts. Automaton has 4258 states and 7086 transitions. Word has length 670
[2023-12-25 14:17:37,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:37,322 INFO  L495      AbstractCegarLoop]: Abstraction has 4258 states and 7086 transitions.
[2023-12-25 14:17:37,322 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:37,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 4258 states and 7086 transitions.
[2023-12-25 14:17:37,325 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 672
[2023-12-25 14:17:37,326 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:37,326 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, 1, 1, 1]
[2023-12-25 14:17:37,326 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-25 14:17:37,326 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:37,326 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:37,326 INFO  L85        PathProgramCache]: Analyzing trace with hash -1273810650, now seen corresponding path program 1 times
[2023-12-25 14:17:37,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:37,327 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604625496]
[2023-12-25 14:17:37,327 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:37,327 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:37,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:38,143 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 14:17:38,144 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:38,144 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604625496]
[2023-12-25 14:17:38,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604625496] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:38,144 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:38,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:38,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183384903]
[2023-12-25 14:17:38,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:38,145 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:38,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:38,146 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:38,146 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:38,146 INFO  L87              Difference]: Start difference. First operand 4258 states and 7086 transitions. Second operand  has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:38,266 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:38,266 INFO  L93              Difference]: Finished difference Result 12331 states and 20522 transitions.
[2023-12-25 14:17:38,267 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:38,267 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 671
[2023-12-25 14:17:38,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:38,277 INFO  L225             Difference]: With dead ends: 12331
[2023-12-25 14:17:38,277 INFO  L226             Difference]: Without dead ends: 8287
[2023-12-25 14:17:38,282 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:38,283 INFO  L413           NwaCegarLoop]: 8348 mSDtfsCounter, 6702 mSDsluCounter, 15412 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6702 SdHoareTripleChecker+Valid, 23760 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 14:17:38,284 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6702 Valid, 23760 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:38,292 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8287 states.
[2023-12-25 14:17:38,341 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8287 to 4260.
[2023-12-25 14:17:38,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4260 states, 4259 states have (on average 1.6642404320262973) internal successors, (7088), 4259 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:38,350 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 7088 transitions.
[2023-12-25 14:17:38,351 INFO  L78                 Accepts]: Start accepts. Automaton has 4260 states and 7088 transitions. Word has length 671
[2023-12-25 14:17:38,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:38,355 INFO  L495      AbstractCegarLoop]: Abstraction has 4260 states and 7088 transitions.
[2023-12-25 14:17:38,355 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:38,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 4260 states and 7088 transitions.
[2023-12-25 14:17:38,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 673
[2023-12-25 14:17:38,359 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:38,359 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, 1, 1, 1, 1]
[2023-12-25 14:17:38,359 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-25 14:17:38,359 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:38,360 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:38,360 INFO  L85        PathProgramCache]: Analyzing trace with hash 2091642386, now seen corresponding path program 1 times
[2023-12-25 14:17:38,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:38,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896915925]
[2023-12-25 14:17:38,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:38,360 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:38,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:39,054 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 14:17:39,054 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:39,054 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896915925]
[2023-12-25 14:17:39,054 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896915925] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:39,054 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:39,054 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:39,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335374314]
[2023-12-25 14:17:39,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:39,088 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:39,088 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:39,089 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:39,089 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:39,090 INFO  L87              Difference]: Start difference. First operand 4260 states and 7088 transitions. Second operand  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:39,231 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:39,231 INFO  L93              Difference]: Finished difference Result 12334 states and 20523 transitions.
[2023-12-25 14:17:39,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:39,232 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 672
[2023-12-25 14:17:39,232 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:39,243 INFO  L225             Difference]: With dead ends: 12334
[2023-12-25 14:17:39,243 INFO  L226             Difference]: Without dead ends: 8288
[2023-12-25 14:17:39,248 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:39,249 INFO  L413           NwaCegarLoop]: 8343 mSDtfsCounter, 6699 mSDsluCounter, 15407 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6699 SdHoareTripleChecker+Valid, 23750 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 14:17:39,249 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6699 Valid, 23750 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:39,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8288 states.
[2023-12-25 14:17:39,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8288 to 4262.
[2023-12-25 14:17:39,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4262 states, 4261 states have (on average 1.6639286552452477) internal successors, (7090), 4261 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:39,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 7090 transitions.
[2023-12-25 14:17:39,317 INFO  L78                 Accepts]: Start accepts. Automaton has 4262 states and 7090 transitions. Word has length 672
[2023-12-25 14:17:39,318 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:39,318 INFO  L495      AbstractCegarLoop]: Abstraction has 4262 states and 7090 transitions.
[2023-12-25 14:17:39,318 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:39,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 4262 states and 7090 transitions.
[2023-12-25 14:17:39,321 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 674
[2023-12-25 14:17:39,322 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:39,322 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, 1, 1, 1, 1, 1]
[2023-12-25 14:17:39,322 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-25 14:17:39,322 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:39,322 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:39,323 INFO  L85        PathProgramCache]: Analyzing trace with hash -1391628658, now seen corresponding path program 1 times
[2023-12-25 14:17:39,323 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:39,323 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912634047]
[2023-12-25 14:17:39,323 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:39,323 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:39,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:39,970 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 14:17:39,970 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:39,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912634047]
[2023-12-25 14:17:39,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912634047] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:39,971 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:39,971 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:39,971 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028154745]
[2023-12-25 14:17:39,971 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:39,971 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:39,971 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:39,972 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:39,972 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:39,972 INFO  L87              Difference]: Start difference. First operand 4262 states and 7090 transitions. Second operand  has 4 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:40,102 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:40,102 INFO  L93              Difference]: Finished difference Result 12337 states and 20524 transitions.
[2023-12-25 14:17:40,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:40,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 673
[2023-12-25 14:17:40,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:40,114 INFO  L225             Difference]: With dead ends: 12337
[2023-12-25 14:17:40,114 INFO  L226             Difference]: Without dead ends: 8289
[2023-12-25 14:17:40,120 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:40,121 INFO  L413           NwaCegarLoop]: 8338 mSDtfsCounter, 6696 mSDsluCounter, 15402 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6696 SdHoareTripleChecker+Valid, 23740 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 14:17:40,122 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6696 Valid, 23740 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:40,128 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8289 states.
[2023-12-25 14:17:40,181 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8289 to 4264.
[2023-12-25 14:17:40,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4264 states, 4263 states have (on average 1.6636171710063337) internal successors, (7092), 4263 states have internal predecessors, (7092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:40,191 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 7092 transitions.
[2023-12-25 14:17:40,191 INFO  L78                 Accepts]: Start accepts. Automaton has 4264 states and 7092 transitions. Word has length 673
[2023-12-25 14:17:40,191 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:40,192 INFO  L495      AbstractCegarLoop]: Abstraction has 4264 states and 7092 transitions.
[2023-12-25 14:17:40,192 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 168.25) internal successors, (673), 4 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:40,192 INFO  L276                IsEmpty]: Start isEmpty. Operand 4264 states and 7092 transitions.
[2023-12-25 14:17:40,197 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 675
[2023-12-25 14:17:40,197 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:40,197 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, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:40,197 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-25 14:17:40,197 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:40,198 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:40,198 INFO  L85        PathProgramCache]: Analyzing trace with hash 483239724, now seen corresponding path program 1 times
[2023-12-25 14:17:40,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:40,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713469740]
[2023-12-25 14:17:40,198 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:40,198 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:40,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:41,053 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 14:17:41,053 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:41,053 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713469740]
[2023-12-25 14:17:41,053 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713469740] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:41,053 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:41,053 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:17:41,054 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854271555]
[2023-12-25 14:17:41,054 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:41,055 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 14:17:41,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:41,055 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 14:17:41,056 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:17:41,056 INFO  L87              Difference]: Start difference. First operand 4264 states and 7092 transitions. Second operand  has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:44,625 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:44,625 INFO  L93              Difference]: Finished difference Result 19353 states and 31959 transitions.
[2023-12-25 14:17:44,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-25 14:17:44,632 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 674
[2023-12-25 14:17:44,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:44,650 INFO  L225             Difference]: With dead ends: 19353
[2023-12-25 14:17:44,651 INFO  L226             Difference]: Without dead ends: 8314
[2023-12-25 14:17:44,662 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:17:44,664 INFO  L413           NwaCegarLoop]: 6959 mSDtfsCounter, 46137 mSDsluCounter, 18793 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46137 SdHoareTripleChecker+Valid, 25752 SdHoareTripleChecker+Invalid, 3841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:44,665 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [46137 Valid, 25752 Invalid, 3841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [690 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 14:17:44,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8314 states.
[2023-12-25 14:17:44,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 4674.
[2023-12-25 14:17:44,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4674 states, 4673 states have (on average 1.663599400813182) internal successors, (7774), 4673 states have internal predecessors, (7774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:44,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4674 states to 4674 states and 7774 transitions.
[2023-12-25 14:17:44,748 INFO  L78                 Accepts]: Start accepts. Automaton has 4674 states and 7774 transitions. Word has length 674
[2023-12-25 14:17:44,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:44,749 INFO  L495      AbstractCegarLoop]: Abstraction has 4674 states and 7774 transitions.
[2023-12-25 14:17:44,749 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:44,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 4674 states and 7774 transitions.
[2023-12-25 14:17:44,801 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 676
[2023-12-25 14:17:44,801 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:44,801 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, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:44,801 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-25 14:17:44,802 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:44,802 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:44,802 INFO  L85        PathProgramCache]: Analyzing trace with hash 408436358, now seen corresponding path program 1 times
[2023-12-25 14:17:44,802 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:44,802 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876985683]
[2023-12-25 14:17:44,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:44,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:44,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:45,454 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 14:17:45,454 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:45,454 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876985683]
[2023-12-25 14:17:45,454 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876985683] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:45,454 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:45,454 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:45,454 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196676701]
[2023-12-25 14:17:45,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:45,455 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:45,455 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:45,456 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:45,456 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:45,456 INFO  L87              Difference]: Start difference. First operand 4674 states and 7774 transitions. Second operand  has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:45,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:45,574 INFO  L93              Difference]: Finished difference Result 12750 states and 21207 transitions.
[2023-12-25 14:17:45,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:45,575 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 675
[2023-12-25 14:17:45,576 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:45,587 INFO  L225             Difference]: With dead ends: 12750
[2023-12-25 14:17:45,587 INFO  L226             Difference]: Without dead ends: 8700
[2023-12-25 14:17:45,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:45,593 INFO  L413           NwaCegarLoop]: 8332 mSDtfsCounter, 6693 mSDsluCounter, 15396 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6693 SdHoareTripleChecker+Valid, 23728 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 14:17:45,594 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6693 Valid, 23728 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:45,600 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8700 states.
[2023-12-25 14:17:45,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8700 to 4676.
[2023-12-25 14:17:45,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4676 states, 4675 states have (on average 1.6633155080213904) internal successors, (7776), 4675 states have internal predecessors, (7776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:45,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4676 states to 4676 states and 7776 transitions.
[2023-12-25 14:17:45,653 INFO  L78                 Accepts]: Start accepts. Automaton has 4676 states and 7776 transitions. Word has length 675
[2023-12-25 14:17:45,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:45,654 INFO  L495      AbstractCegarLoop]: Abstraction has 4676 states and 7776 transitions.
[2023-12-25 14:17:45,654 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 168.75) internal successors, (675), 4 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:45,654 INFO  L276                IsEmpty]: Start isEmpty. Operand 4676 states and 7776 transitions.
[2023-12-25 14:17:45,658 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 677
[2023-12-25 14:17:45,658 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:45,659 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:45,659 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-25 14:17:45,659 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:45,659 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:45,659 INFO  L85        PathProgramCache]: Analyzing trace with hash -2107339174, now seen corresponding path program 1 times
[2023-12-25 14:17:45,660 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:45,660 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316809797]
[2023-12-25 14:17:45,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:45,660 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:45,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:46,366 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 14:17:46,366 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:46,366 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316809797]
[2023-12-25 14:17:46,366 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316809797] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:46,366 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:46,366 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:46,366 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021649159]
[2023-12-25 14:17:46,366 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:46,367 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:46,367 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:46,368 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:46,368 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:46,368 INFO  L87              Difference]: Start difference. First operand 4676 states and 7776 transitions. Second operand  has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:46,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:46,487 INFO  L93              Difference]: Finished difference Result 12753 states and 21208 transitions.
[2023-12-25 14:17:46,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:46,488 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 676
[2023-12-25 14:17:46,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:46,500 INFO  L225             Difference]: With dead ends: 12753
[2023-12-25 14:17:46,500 INFO  L226             Difference]: Without dead ends: 8701
[2023-12-25 14:17:46,505 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:46,506 INFO  L413           NwaCegarLoop]: 8327 mSDtfsCounter, 6690 mSDsluCounter, 15391 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6690 SdHoareTripleChecker+Valid, 23718 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 14:17:46,506 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6690 Valid, 23718 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:46,512 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8701 states.
[2023-12-25 14:17:46,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8701 to 4678.
[2023-12-25 14:17:46,560 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4678 states, 4677 states have (on average 1.663031858028651) internal successors, (7778), 4677 states have internal predecessors, (7778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:46,565 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4678 states to 4678 states and 7778 transitions.
[2023-12-25 14:17:46,565 INFO  L78                 Accepts]: Start accepts. Automaton has 4678 states and 7778 transitions. Word has length 676
[2023-12-25 14:17:46,566 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:46,566 INFO  L495      AbstractCegarLoop]: Abstraction has 4678 states and 7778 transitions.
[2023-12-25 14:17:46,566 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:46,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 4678 states and 7778 transitions.
[2023-12-25 14:17:46,570 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 678
[2023-12-25 14:17:46,570 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:46,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:46,570 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-25 14:17:46,571 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:46,571 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:46,571 INFO  L85        PathProgramCache]: Analyzing trace with hash 1854035874, now seen corresponding path program 1 times
[2023-12-25 14:17:46,571 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:46,571 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334219261]
[2023-12-25 14:17:46,571 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:46,571 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:46,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:47,189 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 14:17:47,190 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:47,190 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334219261]
[2023-12-25 14:17:47,190 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334219261] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:47,190 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:47,190 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:47,190 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851908538]
[2023-12-25 14:17:47,190 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:47,190 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:47,191 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:47,191 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:47,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:47,191 INFO  L87              Difference]: Start difference. First operand 4678 states and 7778 transitions. Second operand  has 4 states, 4 states have (on average 169.25) internal successors, (677), 4 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:47,304 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:47,304 INFO  L93              Difference]: Finished difference Result 12756 states and 21209 transitions.
[2023-12-25 14:17:47,304 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:47,305 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 169.25) internal successors, (677), 4 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 677
[2023-12-25 14:17:47,305 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:47,315 INFO  L225             Difference]: With dead ends: 12756
[2023-12-25 14:17:47,315 INFO  L226             Difference]: Without dead ends: 8702
[2023-12-25 14:17:47,320 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:47,321 INFO  L413           NwaCegarLoop]: 8322 mSDtfsCounter, 6687 mSDsluCounter, 15386 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6687 SdHoareTripleChecker+Valid, 23708 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 14:17:47,321 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6687 Valid, 23708 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:47,326 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8702 states.
[2023-12-25 14:17:47,370 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8702 to 4680.
[2023-12-25 14:17:47,374 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4680 states, 4679 states have (on average 1.662748450523616) internal successors, (7780), 4679 states have internal predecessors, (7780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:47,379 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 7780 transitions.
[2023-12-25 14:17:47,379 INFO  L78                 Accepts]: Start accepts. Automaton has 4680 states and 7780 transitions. Word has length 677
[2023-12-25 14:17:47,380 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:47,380 INFO  L495      AbstractCegarLoop]: Abstraction has 4680 states and 7780 transitions.
[2023-12-25 14:17:47,380 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 169.25) internal successors, (677), 4 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:47,380 INFO  L276                IsEmpty]: Start isEmpty. Operand 4680 states and 7780 transitions.
[2023-12-25 14:17:47,384 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 679
[2023-12-25 14:17:47,384 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:47,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:47,384 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-25 14:17:47,384 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:47,385 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:47,385 INFO  L85        PathProgramCache]: Analyzing trace with hash -1329087678, now seen corresponding path program 1 times
[2023-12-25 14:17:47,385 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:47,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208906201]
[2023-12-25 14:17:47,385 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:47,385 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:47,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:48,008 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 14:17:48,008 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:48,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208906201]
[2023-12-25 14:17:48,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208906201] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:48,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:48,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:48,009 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365991842]
[2023-12-25 14:17:48,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:48,009 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:48,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:48,010 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:48,010 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:48,010 INFO  L87              Difference]: Start difference. First operand 4680 states and 7780 transitions. Second operand  has 4 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:48,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:48,120 INFO  L93              Difference]: Finished difference Result 12759 states and 21210 transitions.
[2023-12-25 14:17:48,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:48,121 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 678
[2023-12-25 14:17:48,122 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:48,132 INFO  L225             Difference]: With dead ends: 12759
[2023-12-25 14:17:48,132 INFO  L226             Difference]: Without dead ends: 8703
[2023-12-25 14:17:48,137 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:48,138 INFO  L413           NwaCegarLoop]: 8312 mSDtfsCounter, 6682 mSDsluCounter, 15376 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6682 SdHoareTripleChecker+Valid, 23688 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 14:17:48,138 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6682 Valid, 23688 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:48,144 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8703 states.
[2023-12-25 14:17:48,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8703 to 4685.
[2023-12-25 14:17:48,191 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4685 states, 4684 states have (on average 1.662467976088813) internal successors, (7787), 4684 states have internal predecessors, (7787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:48,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 7787 transitions.
[2023-12-25 14:17:48,196 INFO  L78                 Accepts]: Start accepts. Automaton has 4685 states and 7787 transitions. Word has length 678
[2023-12-25 14:17:48,199 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:48,199 INFO  L495      AbstractCegarLoop]: Abstraction has 4685 states and 7787 transitions.
[2023-12-25 14:17:48,199 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 169.5) internal successors, (678), 4 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:48,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 4685 states and 7787 transitions.
[2023-12-25 14:17:48,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 680
[2023-12-25 14:17:48,203 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:48,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:48,204 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-25 14:17:48,204 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:48,204 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:48,205 INFO  L85        PathProgramCache]: Analyzing trace with hash 621851222, now seen corresponding path program 1 times
[2023-12-25 14:17:48,205 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:48,205 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085027260]
[2023-12-25 14:17:48,205 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:48,205 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:48,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:48,798 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 14:17:48,798 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:48,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085027260]
[2023-12-25 14:17:48,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085027260] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:48,798 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:48,798 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:48,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714063558]
[2023-12-25 14:17:48,799 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:48,799 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:48,799 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:48,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:48,800 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:48,800 INFO  L87              Difference]: Start difference. First operand 4685 states and 7787 transitions. Second operand  has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:48,912 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:48,912 INFO  L93              Difference]: Finished difference Result 12768 states and 21221 transitions.
[2023-12-25 14:17:48,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:48,912 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 679
[2023-12-25 14:17:48,913 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:48,920 INFO  L225             Difference]: With dead ends: 12768
[2023-12-25 14:17:48,920 INFO  L226             Difference]: Without dead ends: 8707
[2023-12-25 14:17:48,926 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:48,926 INFO  L413           NwaCegarLoop]: 8302 mSDtfsCounter, 6679 mSDsluCounter, 15366 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6679 SdHoareTripleChecker+Valid, 23668 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 14:17:48,926 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6679 Valid, 23668 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:48,931 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8707 states.
[2023-12-25 14:17:48,973 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 4690.
[2023-12-25 14:17:48,977 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4690 states, 4689 states have (on average 1.6621880998080614) internal successors, (7794), 4689 states have internal predecessors, (7794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:48,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 7794 transitions.
[2023-12-25 14:17:48,982 INFO  L78                 Accepts]: Start accepts. Automaton has 4690 states and 7794 transitions. Word has length 679
[2023-12-25 14:17:48,982 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:48,982 INFO  L495      AbstractCegarLoop]: Abstraction has 4690 states and 7794 transitions.
[2023-12-25 14:17:48,983 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:48,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 4690 states and 7794 transitions.
[2023-12-25 14:17:48,986 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 681
[2023-12-25 14:17:48,986 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:48,987 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:48,987 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-12-25 14:17:48,987 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:48,987 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:48,987 INFO  L85        PathProgramCache]: Analyzing trace with hash -26425458, now seen corresponding path program 1 times
[2023-12-25 14:17:48,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:48,987 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769292801]
[2023-12-25 14:17:48,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:48,988 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:49,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:49,535 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 14:17:49,536 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:49,536 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769292801]
[2023-12-25 14:17:49,536 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769292801] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:49,536 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:49,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:49,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121912217]
[2023-12-25 14:17:49,536 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:49,537 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:49,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:49,539 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:49,539 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:49,539 INFO  L87              Difference]: Start difference. First operand 4690 states and 7794 transitions. Second operand  has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:49,668 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:49,668 INFO  L93              Difference]: Finished difference Result 12773 states and 21226 transitions.
[2023-12-25 14:17:49,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:49,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 680
[2023-12-25 14:17:49,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:49,675 INFO  L225             Difference]: With dead ends: 12773
[2023-12-25 14:17:49,675 INFO  L226             Difference]: Without dead ends: 8707
[2023-12-25 14:17:49,679 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 14:17:49,679 INFO  L413           NwaCegarLoop]: 8293 mSDtfsCounter, 6673 mSDsluCounter, 15355 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6673 SdHoareTripleChecker+Valid, 23648 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:49,679 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6673 Valid, 23648 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:49,684 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8707 states.
[2023-12-25 14:17:49,724 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 4692.
[2023-12-25 14:17:49,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4692 states, 4691 states have (on average 1.6619057770198251) internal successors, (7796), 4691 states have internal predecessors, (7796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:49,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 7796 transitions.
[2023-12-25 14:17:49,734 INFO  L78                 Accepts]: Start accepts. Automaton has 4692 states and 7796 transitions. Word has length 680
[2023-12-25 14:17:49,735 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:49,735 INFO  L495      AbstractCegarLoop]: Abstraction has 4692 states and 7796 transitions.
[2023-12-25 14:17:49,735 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:49,735 INFO  L276                IsEmpty]: Start isEmpty. Operand 4692 states and 7796 transitions.
[2023-12-25 14:17:49,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 682
[2023-12-25 14:17:49,739 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:49,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:49,739 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-12-25 14:17:49,739 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:49,739 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:49,740 INFO  L85        PathProgramCache]: Analyzing trace with hash 1237742448, now seen corresponding path program 1 times
[2023-12-25 14:17:49,740 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:49,740 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910608357]
[2023-12-25 14:17:49,740 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:49,740 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:49,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:50,397 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 14:17:50,398 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:50,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910608357]
[2023-12-25 14:17:50,398 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910608357] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:50,398 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:50,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:50,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527947101]
[2023-12-25 14:17:50,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:50,399 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:50,399 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:50,399 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:50,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:50,400 INFO  L87              Difference]: Start difference. First operand 4692 states and 7796 transitions. Second operand  has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:50,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:50,508 INFO  L93              Difference]: Finished difference Result 12783 states and 21238 transitions.
[2023-12-25 14:17:50,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:50,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 681
[2023-12-25 14:17:50,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:50,515 INFO  L225             Difference]: With dead ends: 12783
[2023-12-25 14:17:50,515 INFO  L226             Difference]: Without dead ends: 8715
[2023-12-25 14:17:50,519 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:50,520 INFO  L413           NwaCegarLoop]: 8292 mSDtfsCounter, 6675 mSDsluCounter, 15356 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6675 SdHoareTripleChecker+Valid, 23648 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 14:17:50,520 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6675 Valid, 23648 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:50,524 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8715 states.
[2023-12-25 14:17:50,567 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8715 to 4695.
[2023-12-25 14:17:50,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4695 states, 4694 states have (on average 1.661908819769919) internal successors, (7801), 4694 states have internal predecessors, (7801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:50,576 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 7801 transitions.
[2023-12-25 14:17:50,576 INFO  L78                 Accepts]: Start accepts. Automaton has 4695 states and 7801 transitions. Word has length 681
[2023-12-25 14:17:50,592 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:50,592 INFO  L495      AbstractCegarLoop]: Abstraction has 4695 states and 7801 transitions.
[2023-12-25 14:17:50,593 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 170.25) internal successors, (681), 4 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:50,593 INFO  L276                IsEmpty]: Start isEmpty. Operand 4695 states and 7801 transitions.
[2023-12-25 14:17:50,597 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 683
[2023-12-25 14:17:50,597 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:50,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:50,597 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-12-25 14:17:50,597 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:50,597 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:50,598 INFO  L85        PathProgramCache]: Analyzing trace with hash 191675252, now seen corresponding path program 1 times
[2023-12-25 14:17:50,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:50,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890519675]
[2023-12-25 14:17:50,598 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:50,598 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:50,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:51,245 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 14:17:51,245 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:51,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890519675]
[2023-12-25 14:17:51,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890519675] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:51,246 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:51,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:51,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214214904]
[2023-12-25 14:17:51,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:51,246 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:51,247 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:51,247 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:51,247 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:51,248 INFO  L87              Difference]: Start difference. First operand 4695 states and 7801 transitions. Second operand  has 4 states, 4 states have (on average 170.5) internal successors, (682), 4 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:51,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:51,379 INFO  L93              Difference]: Finished difference Result 12786 states and 21243 transitions.
[2023-12-25 14:17:51,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:51,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 170.5) internal successors, (682), 4 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 682
[2023-12-25 14:17:51,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:51,390 INFO  L225             Difference]: With dead ends: 12786
[2023-12-25 14:17:51,390 INFO  L226             Difference]: Without dead ends: 8715
[2023-12-25 14:17:51,394 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:51,394 INFO  L413           NwaCegarLoop]: 8282 mSDtfsCounter, 6673 mSDsluCounter, 15346 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6673 SdHoareTripleChecker+Valid, 23628 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 14:17:51,394 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6673 Valid, 23628 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:51,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8715 states.
[2023-12-25 14:17:51,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8715 to 4700.
[2023-12-25 14:17:51,445 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4700 states, 4699 states have (on average 1.6616301340710788) internal successors, (7808), 4699 states have internal predecessors, (7808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:51,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 7808 transitions.
[2023-12-25 14:17:51,449 INFO  L78                 Accepts]: Start accepts. Automaton has 4700 states and 7808 transitions. Word has length 682
[2023-12-25 14:17:51,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:51,450 INFO  L495      AbstractCegarLoop]: Abstraction has 4700 states and 7808 transitions.
[2023-12-25 14:17:51,450 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 170.5) internal successors, (682), 4 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:51,450 INFO  L276                IsEmpty]: Start isEmpty. Operand 4700 states and 7808 transitions.
[2023-12-25 14:17:51,454 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 684
[2023-12-25 14:17:51,454 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:51,454 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:51,454 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-12-25 14:17:51,454 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:51,454 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:51,455 INFO  L85        PathProgramCache]: Analyzing trace with hash 1599435428, now seen corresponding path program 1 times
[2023-12-25 14:17:51,455 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:51,455 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577503357]
[2023-12-25 14:17:51,455 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:51,455 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:51,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:51,985 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 14:17:51,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:51,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577503357]
[2023-12-25 14:17:51,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577503357] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:51,985 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:51,986 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:51,986 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229846603]
[2023-12-25 14:17:51,986 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:51,987 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:51,987 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:51,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:51,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:51,988 INFO  L87              Difference]: Start difference. First operand 4700 states and 7808 transitions. Second operand  has 4 states, 4 states have (on average 170.75) internal successors, (683), 4 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:52,089 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:52,090 INFO  L93              Difference]: Finished difference Result 12791 states and 21248 transitions.
[2023-12-25 14:17:52,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:52,090 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 170.75) internal successors, (683), 4 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 683
[2023-12-25 14:17:52,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:52,101 INFO  L225             Difference]: With dead ends: 12791
[2023-12-25 14:17:52,101 INFO  L226             Difference]: Without dead ends: 8715
[2023-12-25 14:17:52,105 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 14:17:52,108 INFO  L413           NwaCegarLoop]: 8273 mSDtfsCounter, 6667 mSDsluCounter, 15335 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6667 SdHoareTripleChecker+Valid, 23608 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:52,109 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6667 Valid, 23608 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:52,114 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8715 states.
[2023-12-25 14:17:52,151 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8715 to 4702.
[2023-12-25 14:17:52,154 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4702 states, 4701 states have (on average 1.6613486492235694) internal successors, (7810), 4701 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:52,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4702 states to 4702 states and 7810 transitions.
[2023-12-25 14:17:52,158 INFO  L78                 Accepts]: Start accepts. Automaton has 4702 states and 7810 transitions. Word has length 683
[2023-12-25 14:17:52,159 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:52,159 INFO  L495      AbstractCegarLoop]: Abstraction has 4702 states and 7810 transitions.
[2023-12-25 14:17:52,159 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 170.75) internal successors, (683), 4 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:52,159 INFO  L276                IsEmpty]: Start isEmpty. Operand 4702 states and 7810 transitions.
[2023-12-25 14:17:52,162 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 685
[2023-12-25 14:17:52,163 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:52,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:52,163 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-12-25 14:17:52,163 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:52,163 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:52,163 INFO  L85        PathProgramCache]: Analyzing trace with hash -1270410470, now seen corresponding path program 1 times
[2023-12-25 14:17:52,163 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:52,164 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680465153]
[2023-12-25 14:17:52,164 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:52,164 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:52,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:52,750 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 14:17:52,750 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:52,750 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680465153]
[2023-12-25 14:17:52,750 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680465153] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:52,750 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:52,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:52,750 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684928009]
[2023-12-25 14:17:52,751 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:52,751 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:52,751 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:52,752 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:52,752 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:52,752 INFO  L87              Difference]: Start difference. First operand 4702 states and 7810 transitions. Second operand  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:52,900 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:52,900 INFO  L93              Difference]: Finished difference Result 12801 states and 21260 transitions.
[2023-12-25 14:17:52,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:17:52,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 684
[2023-12-25 14:17:52,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:52,909 INFO  L225             Difference]: With dead ends: 12801
[2023-12-25 14:17:52,909 INFO  L226             Difference]: Without dead ends: 8723
[2023-12-25 14:17:52,912 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:52,912 INFO  L413           NwaCegarLoop]: 8272 mSDtfsCounter, 6669 mSDsluCounter, 15336 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 23608 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 14:17:52,912 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6669 Valid, 23608 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:52,916 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8723 states.
[2023-12-25 14:17:52,949 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8723 to 4705.
[2023-12-25 14:17:52,952 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4705 states, 4704 states have (on average 1.6613520408163265) internal successors, (7815), 4704 states have internal predecessors, (7815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:52,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4705 states to 4705 states and 7815 transitions.
[2023-12-25 14:17:52,955 INFO  L78                 Accepts]: Start accepts. Automaton has 4705 states and 7815 transitions. Word has length 684
[2023-12-25 14:17:52,956 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:52,956 INFO  L495      AbstractCegarLoop]: Abstraction has 4705 states and 7815 transitions.
[2023-12-25 14:17:52,956 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:52,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 4705 states and 7815 transitions.
[2023-12-25 14:17:52,960 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 686
[2023-12-25 14:17:52,960 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:52,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:52,960 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-12-25 14:17:52,960 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:52,960 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:52,960 INFO  L85        PathProgramCache]: Analyzing trace with hash -896539138, now seen corresponding path program 1 times
[2023-12-25 14:17:52,961 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:52,961 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197003660]
[2023-12-25 14:17:52,961 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:52,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:53,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:53,494 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 14:17:53,494 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:53,494 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197003660]
[2023-12-25 14:17:53,494 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197003660] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:53,494 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:53,494 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:53,494 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96094328]
[2023-12-25 14:17:53,494 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:53,495 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:53,495 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:53,496 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:53,496 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:53,496 INFO  L87              Difference]: Start difference. First operand 4705 states and 7815 transitions. Second operand  has 4 states, 4 states have (on average 171.25) internal successors, (685), 4 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:53,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:53,598 INFO  L93              Difference]: Finished difference Result 12800 states and 21259 transitions.
[2023-12-25 14:17:53,598 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:53,598 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 171.25) internal successors, (685), 4 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 685
[2023-12-25 14:17:53,599 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:53,606 INFO  L225             Difference]: With dead ends: 12800
[2023-12-25 14:17:53,606 INFO  L226             Difference]: Without dead ends: 8719
[2023-12-25 14:17:53,609 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 14:17:53,610 INFO  L413           NwaCegarLoop]: 8263 mSDtfsCounter, 6664 mSDsluCounter, 15325 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6664 SdHoareTripleChecker+Valid, 23588 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:53,610 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6664 Valid, 23588 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:53,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8719 states.
[2023-12-25 14:17:53,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 4707.
[2023-12-25 14:17:53,653 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4707 states, 4706 states have (on average 1.6610709732256694) internal successors, (7817), 4706 states have internal predecessors, (7817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:53,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 7817 transitions.
[2023-12-25 14:17:53,657 INFO  L78                 Accepts]: Start accepts. Automaton has 4707 states and 7817 transitions. Word has length 685
[2023-12-25 14:17:53,657 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:53,657 INFO  L495      AbstractCegarLoop]: Abstraction has 4707 states and 7817 transitions.
[2023-12-25 14:17:53,658 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 171.25) internal successors, (685), 4 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:53,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 4707 states and 7817 transitions.
[2023-12-25 14:17:53,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 687
[2023-12-25 14:17:53,661 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:53,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:53,662 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-12-25 14:17:53,662 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:53,663 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:53,663 INFO  L85        PathProgramCache]: Analyzing trace with hash 1964545150, now seen corresponding path program 1 times
[2023-12-25 14:17:53,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:53,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233687081]
[2023-12-25 14:17:53,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:53,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:53,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:54,275 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 14:17:54,276 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:54,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233687081]
[2023-12-25 14:17:54,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233687081] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:54,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:54,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:17:54,276 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021261190]
[2023-12-25 14:17:54,276 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:54,277 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:17:54,277 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:54,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:17:54,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:54,278 INFO  L87              Difference]: Start difference. First operand 4707 states and 7817 transitions. Second operand  has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:54,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:54,426 INFO  L93              Difference]: Finished difference Result 12810 states and 21271 transitions.
[2023-12-25 14:17:54,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:17:54,426 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 686
[2023-12-25 14:17:54,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:54,435 INFO  L225             Difference]: With dead ends: 12810
[2023-12-25 14:17:54,435 INFO  L226             Difference]: Without dead ends: 8727
[2023-12-25 14:17:54,438 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:17:54,439 INFO  L413           NwaCegarLoop]: 8261 mSDtfsCounter, 6667 mSDsluCounter, 23579 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6667 SdHoareTripleChecker+Valid, 31840 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:54,439 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6667 Valid, 31840 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:54,443 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8727 states.
[2023-12-25 14:17:54,475 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8727 to 4710.
[2023-12-25 14:17:54,478 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4710 states, 4709 states have (on average 1.6610745381184966) internal successors, (7822), 4709 states have internal predecessors, (7822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:54,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4710 states to 4710 states and 7822 transitions.
[2023-12-25 14:17:54,482 INFO  L78                 Accepts]: Start accepts. Automaton has 4710 states and 7822 transitions. Word has length 686
[2023-12-25 14:17:54,482 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:54,482 INFO  L495      AbstractCegarLoop]: Abstraction has 4710 states and 7822 transitions.
[2023-12-25 14:17:54,483 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:54,483 INFO  L276                IsEmpty]: Start isEmpty. Operand 4710 states and 7822 transitions.
[2023-12-25 14:17:54,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 688
[2023-12-25 14:17:54,486 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:54,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:54,487 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-12-25 14:17:54,487 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:54,487 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:54,487 INFO  L85        PathProgramCache]: Analyzing trace with hash -1303261418, now seen corresponding path program 1 times
[2023-12-25 14:17:54,487 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:54,487 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844684528]
[2023-12-25 14:17:54,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:54,488 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:54,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:55,037 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 14:17:55,038 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:55,038 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844684528]
[2023-12-25 14:17:55,038 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844684528] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:55,038 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:55,038 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:55,038 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839401870]
[2023-12-25 14:17:55,038 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:55,039 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:55,039 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:55,039 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:55,039 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:55,040 INFO  L87              Difference]: Start difference. First operand 4710 states and 7822 transitions. Second operand  has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:55,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:55,141 INFO  L93              Difference]: Finished difference Result 12809 states and 21270 transitions.
[2023-12-25 14:17:55,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:55,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 687
[2023-12-25 14:17:55,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:55,148 INFO  L225             Difference]: With dead ends: 12809
[2023-12-25 14:17:55,148 INFO  L226             Difference]: Without dead ends: 8723
[2023-12-25 14:17:55,151 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 14:17:55,152 INFO  L413           NwaCegarLoop]: 8253 mSDtfsCounter, 6661 mSDsluCounter, 15315 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6661 SdHoareTripleChecker+Valid, 23568 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:55,152 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6661 Valid, 23568 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:55,156 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8723 states.
[2023-12-25 14:17:55,187 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8723 to 4712.
[2023-12-25 14:17:55,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4712 states, 4711 states have (on average 1.66079388664827) internal successors, (7824), 4711 states have internal predecessors, (7824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:55,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4712 states to 4712 states and 7824 transitions.
[2023-12-25 14:17:55,194 INFO  L78                 Accepts]: Start accepts. Automaton has 4712 states and 7824 transitions. Word has length 687
[2023-12-25 14:17:55,195 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:55,195 INFO  L495      AbstractCegarLoop]: Abstraction has 4712 states and 7824 transitions.
[2023-12-25 14:17:55,195 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:55,195 INFO  L276                IsEmpty]: Start isEmpty. Operand 4712 states and 7824 transitions.
[2023-12-25 14:17:55,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 689
[2023-12-25 14:17:55,199 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:55,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:55,199 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-12-25 14:17:55,199 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:55,199 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:55,200 INFO  L85        PathProgramCache]: Analyzing trace with hash 978849828, now seen corresponding path program 1 times
[2023-12-25 14:17:55,200 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:55,200 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981647050]
[2023-12-25 14:17:55,200 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:55,200 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:55,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:55,868 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 14:17:55,869 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:55,869 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981647050]
[2023-12-25 14:17:55,869 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981647050] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:55,869 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:55,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:17:55,869 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32207791]
[2023-12-25 14:17:55,869 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:55,870 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:17:55,870 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:55,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:17:55,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:55,870 INFO  L87              Difference]: Start difference. First operand 4712 states and 7824 transitions. Second operand  has 5 states, 5 states have (on average 137.6) internal successors, (688), 5 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:56,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:56,017 INFO  L93              Difference]: Finished difference Result 12819 states and 21282 transitions.
[2023-12-25 14:17:56,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:17:56,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 137.6) internal successors, (688), 5 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 688
[2023-12-25 14:17:56,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:56,024 INFO  L225             Difference]: With dead ends: 12819
[2023-12-25 14:17:56,024 INFO  L226             Difference]: Without dead ends: 8731
[2023-12-25 14:17:56,028 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:17:56,028 INFO  L413           NwaCegarLoop]: 8251 mSDtfsCounter, 6664 mSDsluCounter, 23559 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6664 SdHoareTripleChecker+Valid, 31810 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:56,028 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6664 Valid, 31810 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:56,033 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8731 states.
[2023-12-25 14:17:56,065 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 4715.
[2023-12-25 14:17:56,068 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4715 states, 4714 states have (on average 1.6607976240984301) internal successors, (7829), 4714 states have internal predecessors, (7829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:56,072 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4715 states to 4715 states and 7829 transitions.
[2023-12-25 14:17:56,072 INFO  L78                 Accepts]: Start accepts. Automaton has 4715 states and 7829 transitions. Word has length 688
[2023-12-25 14:17:56,072 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:56,073 INFO  L495      AbstractCegarLoop]: Abstraction has 4715 states and 7829 transitions.
[2023-12-25 14:17:56,073 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 137.6) internal successors, (688), 5 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:56,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 4715 states and 7829 transitions.
[2023-12-25 14:17:56,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 690
[2023-12-25 14:17:56,076 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:56,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 14:17:56,077 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-12-25 14:17:56,077 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:56,077 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:56,077 INFO  L85        PathProgramCache]: Analyzing trace with hash -797163920, now seen corresponding path program 1 times
[2023-12-25 14:17:56,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:56,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002530980]
[2023-12-25 14:17:56,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:56,078 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:56,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:56,616 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 14:17:56,616 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:56,616 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002530980]
[2023-12-25 14:17:56,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002530980] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:56,616 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:56,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:56,617 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320937494]
[2023-12-25 14:17:56,617 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:56,617 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:56,617 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:56,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:56,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:56,618 INFO  L87              Difference]: Start difference. First operand 4715 states and 7829 transitions. Second operand  has 4 states, 4 states have (on average 172.25) internal successors, (689), 4 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:56,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:56,719 INFO  L93              Difference]: Finished difference Result 12818 states and 21281 transitions.
[2023-12-25 14:17:56,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:56,720 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 172.25) internal successors, (689), 4 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 689
[2023-12-25 14:17:56,720 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:56,726 INFO  L225             Difference]: With dead ends: 12818
[2023-12-25 14:17:56,726 INFO  L226             Difference]: Without dead ends: 8727
[2023-12-25 14:17:56,730 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 14:17:56,730 INFO  L413           NwaCegarLoop]: 8243 mSDtfsCounter, 6658 mSDsluCounter, 15305 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6658 SdHoareTripleChecker+Valid, 23548 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:56,731 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6658 Valid, 23548 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:56,735 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8727 states.
[2023-12-25 14:17:56,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8727 to 4717.
[2023-12-25 14:17:56,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4717 states, 4716 states have (on average 1.6605173876166242) internal successors, (7831), 4716 states have internal predecessors, (7831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:56,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4717 states to 4717 states and 7831 transitions.
[2023-12-25 14:17:56,773 INFO  L78                 Accepts]: Start accepts. Automaton has 4717 states and 7831 transitions. Word has length 689
[2023-12-25 14:17:56,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:56,773 INFO  L495      AbstractCegarLoop]: Abstraction has 4717 states and 7831 transitions.
[2023-12-25 14:17:56,773 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 172.25) internal successors, (689), 4 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:56,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 4717 states and 7831 transitions.
[2023-12-25 14:17:56,777 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 691
[2023-12-25 14:17:56,777 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:56,777 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, 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 14:17:56,777 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-12-25 14:17:56,777 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:56,778 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:56,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -172963704, now seen corresponding path program 1 times
[2023-12-25 14:17:56,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:56,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716045473]
[2023-12-25 14:17:56,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:56,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:56,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:57,388 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 14:17:57,388 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:57,388 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716045473]
[2023-12-25 14:17:57,388 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716045473] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:57,388 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:57,388 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:17:57,388 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891704632]
[2023-12-25 14:17:57,388 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:57,389 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:17:57,389 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:57,390 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:17:57,390 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:57,390 INFO  L87              Difference]: Start difference. First operand 4717 states and 7831 transitions. Second operand  has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:57,518 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:57,518 INFO  L93              Difference]: Finished difference Result 12828 states and 21293 transitions.
[2023-12-25 14:17:57,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:17:57,518 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 690
[2023-12-25 14:17:57,519 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:57,525 INFO  L225             Difference]: With dead ends: 12828
[2023-12-25 14:17:57,525 INFO  L226             Difference]: Without dead ends: 8735
[2023-12-25 14:17:57,529 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:17:57,529 INFO  L413           NwaCegarLoop]: 8241 mSDtfsCounter, 6662 mSDsluCounter, 21962 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6662 SdHoareTripleChecker+Valid, 30203 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:57,529 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6662 Valid, 30203 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:57,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8735 states.
[2023-12-25 14:17:57,565 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8735 to 4720.
[2023-12-25 14:17:57,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4720 states, 4719 states have (on average 1.6605212968849332) internal successors, (7836), 4719 states have internal predecessors, (7836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:57,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 7836 transitions.
[2023-12-25 14:17:57,572 INFO  L78                 Accepts]: Start accepts. Automaton has 4720 states and 7836 transitions. Word has length 690
[2023-12-25 14:17:57,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:57,572 INFO  L495      AbstractCegarLoop]: Abstraction has 4720 states and 7836 transitions.
[2023-12-25 14:17:57,572 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:57,572 INFO  L276                IsEmpty]: Start isEmpty. Operand 4720 states and 7836 transitions.
[2023-12-25 14:17:57,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 692
[2023-12-25 14:17:57,576 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:57,576 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, 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 14:17:57,576 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-12-25 14:17:57,576 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:57,577 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:57,577 INFO  L85        PathProgramCache]: Analyzing trace with hash -1817921912, now seen corresponding path program 1 times
[2023-12-25 14:17:57,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:57,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201542660]
[2023-12-25 14:17:57,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:57,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:57,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:58,123 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 14:17:58,123 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:58,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201542660]
[2023-12-25 14:17:58,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201542660] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:58,123 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:58,123 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:58,123 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724501487]
[2023-12-25 14:17:58,123 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:58,124 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:58,124 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:58,125 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:58,125 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:58,125 INFO  L87              Difference]: Start difference. First operand 4720 states and 7836 transitions. Second operand  has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:58,226 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:58,226 INFO  L93              Difference]: Finished difference Result 12827 states and 21292 transitions.
[2023-12-25 14:17:58,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:58,227 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 691
[2023-12-25 14:17:58,227 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:58,234 INFO  L225             Difference]: With dead ends: 12827
[2023-12-25 14:17:58,234 INFO  L226             Difference]: Without dead ends: 8731
[2023-12-25 14:17:58,238 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 14:17:58,238 INFO  L413           NwaCegarLoop]: 8233 mSDtfsCounter, 6655 mSDsluCounter, 15295 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6655 SdHoareTripleChecker+Valid, 23528 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:58,239 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6655 Valid, 23528 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:58,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8731 states.
[2023-12-25 14:17:58,277 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 4722.
[2023-12-25 14:17:58,281 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4722 states, 4721 states have (on average 1.660241474263927) internal successors, (7838), 4721 states have internal predecessors, (7838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:58,284 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4722 states to 4722 states and 7838 transitions.
[2023-12-25 14:17:58,284 INFO  L78                 Accepts]: Start accepts. Automaton has 4722 states and 7838 transitions. Word has length 691
[2023-12-25 14:17:58,285 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:58,285 INFO  L495      AbstractCegarLoop]: Abstraction has 4722 states and 7838 transitions.
[2023-12-25 14:17:58,285 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:58,285 INFO  L276                IsEmpty]: Start isEmpty. Operand 4722 states and 7838 transitions.
[2023-12-25 14:17:58,289 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 693
[2023-12-25 14:17:58,289 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:58,289 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, 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 14:17:58,289 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-12-25 14:17:58,289 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:58,290 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:58,290 INFO  L85        PathProgramCache]: Analyzing trace with hash -1874794450, now seen corresponding path program 1 times
[2023-12-25 14:17:58,290 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:58,290 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568038392]
[2023-12-25 14:17:58,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:58,291 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:58,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:58,944 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 14:17:58,944 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:58,944 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568038392]
[2023-12-25 14:17:58,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568038392] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:58,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:58,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:17:58,944 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919363885]
[2023-12-25 14:17:58,945 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:58,945 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:17:58,945 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:58,946 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:17:58,946 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:17:58,946 INFO  L87              Difference]: Start difference. First operand 4722 states and 7838 transitions. Second operand  has 5 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:59,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:59,083 INFO  L93              Difference]: Finished difference Result 12837 states and 21304 transitions.
[2023-12-25 14:17:59,083 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:17:59,083 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 692
[2023-12-25 14:17:59,083 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:59,090 INFO  L225             Difference]: With dead ends: 12837
[2023-12-25 14:17:59,090 INFO  L226             Difference]: Without dead ends: 8739
[2023-12-25 14:17:59,093 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:17:59,094 INFO  L413           NwaCegarLoop]: 8231 mSDtfsCounter, 6658 mSDsluCounter, 23519 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6658 SdHoareTripleChecker+Valid, 31750 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:59,094 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6658 Valid, 31750 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:59,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8739 states.
[2023-12-25 14:17:59,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8739 to 4725.
[2023-12-25 14:17:59,133 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4725 states, 4724 states have (on average 1.6602455546147332) internal successors, (7843), 4724 states have internal predecessors, (7843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:59,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4725 states to 4725 states and 7843 transitions.
[2023-12-25 14:17:59,137 INFO  L78                 Accepts]: Start accepts. Automaton has 4725 states and 7843 transitions. Word has length 692
[2023-12-25 14:17:59,137 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:59,137 INFO  L495      AbstractCegarLoop]: Abstraction has 4725 states and 7843 transitions.
[2023-12-25 14:17:59,137 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:59,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 4725 states and 7843 transitions.
[2023-12-25 14:17:59,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 694
[2023-12-25 14:17:59,141 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:59,141 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, 1, 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 14:17:59,141 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2023-12-25 14:17:59,142 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:59,142 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:59,142 INFO  L85        PathProgramCache]: Analyzing trace with hash 626237922, now seen corresponding path program 1 times
[2023-12-25 14:17:59,142 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:59,142 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044353788]
[2023-12-25 14:17:59,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:59,142 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:17:59,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:17:59,692 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 14:17:59,692 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:17:59,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044353788]
[2023-12-25 14:17:59,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044353788] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:17:59,692 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:17:59,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:17:59,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598687302]
[2023-12-25 14:17:59,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:17:59,693 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:17:59,693 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:17:59,694 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:17:59,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:17:59,694 INFO  L87              Difference]: Start difference. First operand 4725 states and 7843 transitions. Second operand  has 4 states, 4 states have (on average 173.25) internal successors, (693), 4 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:59,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:17:59,822 INFO  L93              Difference]: Finished difference Result 12836 states and 21303 transitions.
[2023-12-25 14:17:59,822 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:17:59,822 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 173.25) internal successors, (693), 4 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 693
[2023-12-25 14:17:59,823 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:17:59,829 INFO  L225             Difference]: With dead ends: 12836
[2023-12-25 14:17:59,829 INFO  L226             Difference]: Without dead ends: 8735
[2023-12-25 14:17:59,832 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 14:17:59,833 INFO  L413           NwaCegarLoop]: 8223 mSDtfsCounter, 6652 mSDsluCounter, 15285 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6652 SdHoareTripleChecker+Valid, 23508 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:17:59,833 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6652 Valid, 23508 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:17:59,837 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8735 states.
[2023-12-25 14:17:59,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8735 to 4727.
[2023-12-25 14:17:59,874 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4727 states, 4726 states have (on average 1.659966144731274) internal successors, (7845), 4726 states have internal predecessors, (7845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:59,877 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4727 states to 4727 states and 7845 transitions.
[2023-12-25 14:17:59,877 INFO  L78                 Accepts]: Start accepts. Automaton has 4727 states and 7845 transitions. Word has length 693
[2023-12-25 14:17:59,878 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:17:59,878 INFO  L495      AbstractCegarLoop]: Abstraction has 4727 states and 7845 transitions.
[2023-12-25 14:17:59,878 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 173.25) internal successors, (693), 4 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:17:59,878 INFO  L276                IsEmpty]: Start isEmpty. Operand 4727 states and 7845 transitions.
[2023-12-25 14:17:59,882 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 695
[2023-12-25 14:17:59,882 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:17:59,882 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, 1, 1, 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 14:17:59,882 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2023-12-25 14:17:59,882 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:17:59,882 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:17:59,882 INFO  L85        PathProgramCache]: Analyzing trace with hash -1155016814, now seen corresponding path program 1 times
[2023-12-25 14:17:59,882 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:17:59,883 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840517475]
[2023-12-25 14:17:59,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:17:59,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:00,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:00,506 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 14:18:00,506 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:00,506 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840517475]
[2023-12-25 14:18:00,506 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840517475] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:00,506 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:00,506 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:18:00,506 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979439416]
[2023-12-25 14:18:00,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:00,507 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:18:00,507 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:00,508 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:18:00,508 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:00,508 INFO  L87              Difference]: Start difference. First operand 4727 states and 7845 transitions. Second operand  has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:00,638 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:00,639 INFO  L93              Difference]: Finished difference Result 12846 states and 21315 transitions.
[2023-12-25 14:18:00,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:18:00,639 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 694
[2023-12-25 14:18:00,639 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:00,646 INFO  L225             Difference]: With dead ends: 12846
[2023-12-25 14:18:00,647 INFO  L226             Difference]: Without dead ends: 8743
[2023-12-25 14:18:00,650 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:18:00,650 INFO  L413           NwaCegarLoop]: 8221 mSDtfsCounter, 6656 mSDsluCounter, 21936 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6656 SdHoareTripleChecker+Valid, 30157 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:18:00,651 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6656 Valid, 30157 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:00,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8743 states.
[2023-12-25 14:18:00,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8743 to 4730.
[2023-12-25 14:18:00,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4730 states, 4729 states have (on average 1.659970395432438) internal successors, (7850), 4729 states have internal predecessors, (7850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:00,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4730 states to 4730 states and 7850 transitions.
[2023-12-25 14:18:00,702 INFO  L78                 Accepts]: Start accepts. Automaton has 4730 states and 7850 transitions. Word has length 694
[2023-12-25 14:18:00,703 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:00,703 INFO  L495      AbstractCegarLoop]: Abstraction has 4730 states and 7850 transitions.
[2023-12-25 14:18:00,703 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:00,703 INFO  L276                IsEmpty]: Start isEmpty. Operand 4730 states and 7850 transitions.
[2023-12-25 14:18:00,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 696
[2023-12-25 14:18:00,707 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:00,707 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, 1, 1, 1, 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 14:18:00,707 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2023-12-25 14:18:00,707 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:00,707 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:00,707 INFO  L85        PathProgramCache]: Analyzing trace with hash 1318234362, now seen corresponding path program 1 times
[2023-12-25 14:18:00,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:00,708 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289637854]
[2023-12-25 14:18:00,708 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:00,708 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:00,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:01,298 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 14:18:01,298 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:01,298 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289637854]
[2023-12-25 14:18:01,298 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289637854] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:01,298 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:01,298 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:01,298 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020837572]
[2023-12-25 14:18:01,298 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:01,299 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:01,299 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:01,300 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:01,300 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:01,300 INFO  L87              Difference]: Start difference. First operand 4730 states and 7850 transitions. Second operand  has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:01,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:01,411 INFO  L93              Difference]: Finished difference Result 12849 states and 21320 transitions.
[2023-12-25 14:18:01,411 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:01,412 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 695
[2023-12-25 14:18:01,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:01,419 INFO  L225             Difference]: With dead ends: 12849
[2023-12-25 14:18:01,419 INFO  L226             Difference]: Without dead ends: 8743
[2023-12-25 14:18:01,422 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:01,422 INFO  L413           NwaCegarLoop]: 8212 mSDtfsCounter, 6652 mSDsluCounter, 15276 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6652 SdHoareTripleChecker+Valid, 23488 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 14:18:01,422 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6652 Valid, 23488 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:01,426 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8743 states.
[2023-12-25 14:18:01,458 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8743 to 4735.
[2023-12-25 14:18:01,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4735 states, 4734 states have (on average 1.6596958174904943) internal successors, (7857), 4734 states have internal predecessors, (7857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:01,464 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4735 states to 4735 states and 7857 transitions.
[2023-12-25 14:18:01,465 INFO  L78                 Accepts]: Start accepts. Automaton has 4735 states and 7857 transitions. Word has length 695
[2023-12-25 14:18:01,465 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:01,465 INFO  L495      AbstractCegarLoop]: Abstraction has 4735 states and 7857 transitions.
[2023-12-25 14:18:01,465 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:01,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 4735 states and 7857 transitions.
[2023-12-25 14:18:01,469 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 697
[2023-12-25 14:18:01,469 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:01,469 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, 1, 1, 1, 1, 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 14:18:01,469 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2023-12-25 14:18:01,469 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:01,470 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:01,470 INFO  L85        PathProgramCache]: Analyzing trace with hash -952426402, now seen corresponding path program 1 times
[2023-12-25 14:18:01,470 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:01,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639055408]
[2023-12-25 14:18:01,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:01,470 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:01,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:02,098 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 14:18:02,098 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:02,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639055408]
[2023-12-25 14:18:02,098 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639055408] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:02,098 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:02,099 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:02,099 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799703322]
[2023-12-25 14:18:02,099 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:02,099 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:02,099 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:02,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:02,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:02,100 INFO  L87              Difference]: Start difference. First operand 4735 states and 7857 transitions. Second operand  has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:02,203 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:02,204 INFO  L93              Difference]: Finished difference Result 12858 states and 21331 transitions.
[2023-12-25 14:18:02,204 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:02,204 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 696
[2023-12-25 14:18:02,205 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:02,211 INFO  L225             Difference]: With dead ends: 12858
[2023-12-25 14:18:02,211 INFO  L226             Difference]: Without dead ends: 8747
[2023-12-25 14:18:02,215 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:02,215 INFO  L413           NwaCegarLoop]: 8207 mSDtfsCounter, 6651 mSDsluCounter, 15271 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6651 SdHoareTripleChecker+Valid, 23478 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 14:18:02,215 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6651 Valid, 23478 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:02,219 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8747 states.
[2023-12-25 14:18:02,251 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 4737.
[2023-12-25 14:18:02,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4737 states, 4736 states have (on average 1.6594172297297298) internal successors, (7859), 4736 states have internal predecessors, (7859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:02,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 7859 transitions.
[2023-12-25 14:18:02,258 INFO  L78                 Accepts]: Start accepts. Automaton has 4737 states and 7859 transitions. Word has length 696
[2023-12-25 14:18:02,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:02,258 INFO  L495      AbstractCegarLoop]: Abstraction has 4737 states and 7859 transitions.
[2023-12-25 14:18:02,258 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:02,258 INFO  L276                IsEmpty]: Start isEmpty. Operand 4737 states and 7859 transitions.
[2023-12-25 14:18:02,262 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 698
[2023-12-25 14:18:02,262 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:02,262 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, 1, 1, 1, 1, 1, 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 14:18:02,262 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2023-12-25 14:18:02,263 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:02,263 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:02,263 INFO  L85        PathProgramCache]: Analyzing trace with hash -993647082, now seen corresponding path program 1 times
[2023-12-25 14:18:02,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:02,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552930035]
[2023-12-25 14:18:02,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:02,263 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:02,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:02,844 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 14:18:02,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:02,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552930035]
[2023-12-25 14:18:02,845 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552930035] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:02,845 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:02,845 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:02,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086565725]
[2023-12-25 14:18:02,845 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:02,845 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:02,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:02,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:02,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:02,846 INFO  L87              Difference]: Start difference. First operand 4737 states and 7859 transitions. Second operand  has 4 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:02,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:02,951 INFO  L93              Difference]: Finished difference Result 12861 states and 21332 transitions.
[2023-12-25 14:18:02,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:02,952 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 697
[2023-12-25 14:18:02,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:02,958 INFO  L225             Difference]: With dead ends: 12861
[2023-12-25 14:18:02,959 INFO  L226             Difference]: Without dead ends: 8748
[2023-12-25 14:18:02,962 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:02,962 INFO  L413           NwaCegarLoop]: 8197 mSDtfsCounter, 6646 mSDsluCounter, 15261 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6646 SdHoareTripleChecker+Valid, 23458 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 14:18:02,962 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6646 Valid, 23458 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:02,967 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8748 states.
[2023-12-25 14:18:02,999 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 4742.
[2023-12-25 14:18:03,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4742 states, 4741 states have (on average 1.6591436405821556) internal successors, (7866), 4741 states have internal predecessors, (7866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:03,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4742 states to 4742 states and 7866 transitions.
[2023-12-25 14:18:03,007 INFO  L78                 Accepts]: Start accepts. Automaton has 4742 states and 7866 transitions. Word has length 697
[2023-12-25 14:18:03,007 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:03,007 INFO  L495      AbstractCegarLoop]: Abstraction has 4742 states and 7866 transitions.
[2023-12-25 14:18:03,007 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:03,007 INFO  L276                IsEmpty]: Start isEmpty. Operand 4742 states and 7866 transitions.
[2023-12-25 14:18:03,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 699
[2023-12-25 14:18:03,011 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:03,011 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, 1, 1, 1, 1, 1, 1, 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 14:18:03,011 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2023-12-25 14:18:03,011 INFO  L420      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:03,012 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:03,012 INFO  L85        PathProgramCache]: Analyzing trace with hash 997779052, now seen corresponding path program 1 times
[2023-12-25 14:18:03,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:03,012 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776869343]
[2023-12-25 14:18:03,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:03,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:03,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:03,592 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 14:18:03,593 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:03,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776869343]
[2023-12-25 14:18:03,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776869343] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:03,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:03,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:03,593 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602314491]
[2023-12-25 14:18:03,593 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:03,594 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:03,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:03,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:03,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:03,594 INFO  L87              Difference]: Start difference. First operand 4742 states and 7866 transitions. Second operand  has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:03,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:03,699 INFO  L93              Difference]: Finished difference Result 12870 states and 21343 transitions.
[2023-12-25 14:18:03,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:03,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 698
[2023-12-25 14:18:03,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:03,707 INFO  L225             Difference]: With dead ends: 12870
[2023-12-25 14:18:03,707 INFO  L226             Difference]: Without dead ends: 8752
[2023-12-25 14:18:03,710 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:03,711 INFO  L413           NwaCegarLoop]: 8187 mSDtfsCounter, 6643 mSDsluCounter, 15251 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6643 SdHoareTripleChecker+Valid, 23438 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 14:18:03,711 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6643 Valid, 23438 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:03,715 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8752 states.
[2023-12-25 14:18:03,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8752 to 4747.
[2023-12-25 14:18:03,753 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4747 states, 4746 states have (on average 1.6588706278971765) internal successors, (7873), 4746 states have internal predecessors, (7873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:03,757 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4747 states to 4747 states and 7873 transitions.
[2023-12-25 14:18:03,757 INFO  L78                 Accepts]: Start accepts. Automaton has 4747 states and 7873 transitions. Word has length 698
[2023-12-25 14:18:03,757 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:03,757 INFO  L495      AbstractCegarLoop]: Abstraction has 4747 states and 7873 transitions.
[2023-12-25 14:18:03,757 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:03,757 INFO  L276                IsEmpty]: Start isEmpty. Operand 4747 states and 7873 transitions.
[2023-12-25 14:18:03,761 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 700
[2023-12-25 14:18:03,761 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:03,761 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, 1, 1, 1, 1, 1, 1, 1, 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 14:18:03,761 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2023-12-25 14:18:03,762 INFO  L420      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:03,762 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:03,762 INFO  L85        PathProgramCache]: Analyzing trace with hash -1809967732, now seen corresponding path program 1 times
[2023-12-25 14:18:03,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:03,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568380495]
[2023-12-25 14:18:03,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:03,762 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:03,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:04,345 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 14:18:04,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:04,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568380495]
[2023-12-25 14:18:04,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568380495] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:04,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:04,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:04,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380916287]
[2023-12-25 14:18:04,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:04,346 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:04,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:04,346 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:04,346 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:04,347 INFO  L87              Difference]: Start difference. First operand 4747 states and 7873 transitions. Second operand  has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:04,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:04,453 INFO  L93              Difference]: Finished difference Result 12879 states and 21354 transitions.
[2023-12-25 14:18:04,454 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:04,454 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 699
[2023-12-25 14:18:04,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:04,461 INFO  L225             Difference]: With dead ends: 12879
[2023-12-25 14:18:04,461 INFO  L226             Difference]: Without dead ends: 8756
[2023-12-25 14:18:04,464 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:04,464 INFO  L413           NwaCegarLoop]: 8177 mSDtfsCounter, 6640 mSDsluCounter, 15241 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6640 SdHoareTripleChecker+Valid, 23418 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 14:18:04,465 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6640 Valid, 23418 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:04,469 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8756 states.
[2023-12-25 14:18:04,500 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 4752.
[2023-12-25 14:18:04,503 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4752 states, 4751 states have (on average 1.6585981898547675) internal successors, (7880), 4751 states have internal predecessors, (7880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:04,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 7880 transitions.
[2023-12-25 14:18:04,506 INFO  L78                 Accepts]: Start accepts. Automaton has 4752 states and 7880 transitions. Word has length 699
[2023-12-25 14:18:04,507 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:04,507 INFO  L495      AbstractCegarLoop]: Abstraction has 4752 states and 7880 transitions.
[2023-12-25 14:18:04,507 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:04,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 4752 states and 7880 transitions.
[2023-12-25 14:18:04,511 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 701
[2023-12-25 14:18:04,511 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:04,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:04,511 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2023-12-25 14:18:04,511 INFO  L420      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:04,512 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:04,512 INFO  L85        PathProgramCache]: Analyzing trace with hash 1840701434, now seen corresponding path program 1 times
[2023-12-25 14:18:04,512 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:04,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224356690]
[2023-12-25 14:18:04,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:04,512 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:04,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:05,138 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 14:18:05,138 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:05,138 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224356690]
[2023-12-25 14:18:05,138 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224356690] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:05,138 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:05,138 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:05,139 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185965556]
[2023-12-25 14:18:05,139 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:05,139 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:05,139 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:05,140 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:05,140 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:05,140 INFO  L87              Difference]: Start difference. First operand 4752 states and 7880 transitions. Second operand  has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:05,243 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:05,243 INFO  L93              Difference]: Finished difference Result 12888 states and 21365 transitions.
[2023-12-25 14:18:05,243 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:05,244 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 700
[2023-12-25 14:18:05,244 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:05,250 INFO  L225             Difference]: With dead ends: 12888
[2023-12-25 14:18:05,250 INFO  L226             Difference]: Without dead ends: 8760
[2023-12-25 14:18:05,253 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:05,254 INFO  L413           NwaCegarLoop]: 8167 mSDtfsCounter, 6637 mSDsluCounter, 15231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6637 SdHoareTripleChecker+Valid, 23398 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 14:18:05,254 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6637 Valid, 23398 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:05,258 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8760 states.
[2023-12-25 14:18:05,290 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 4757.
[2023-12-25 14:18:05,293 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4757 states, 4756 states have (on average 1.6583263246425568) internal successors, (7887), 4756 states have internal predecessors, (7887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:05,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 7887 transitions.
[2023-12-25 14:18:05,297 INFO  L78                 Accepts]: Start accepts. Automaton has 4757 states and 7887 transitions. Word has length 700
[2023-12-25 14:18:05,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:05,297 INFO  L495      AbstractCegarLoop]: Abstraction has 4757 states and 7887 transitions.
[2023-12-25 14:18:05,297 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:05,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 4757 states and 7887 transitions.
[2023-12-25 14:18:05,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 702
[2023-12-25 14:18:05,301 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:05,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:05,301 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2023-12-25 14:18:05,301 INFO  L420      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:05,301 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:05,302 INFO  L85        PathProgramCache]: Analyzing trace with hash 1463901314, now seen corresponding path program 1 times
[2023-12-25 14:18:05,302 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:05,302 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216600840]
[2023-12-25 14:18:05,302 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:05,302 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:05,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:05,895 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 14:18:05,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:05,896 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216600840]
[2023-12-25 14:18:05,896 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216600840] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:05,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:05,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:05,896 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855770060]
[2023-12-25 14:18:05,896 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:05,897 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:05,897 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:05,897 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:05,897 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:05,897 INFO  L87              Difference]: Start difference. First operand 4757 states and 7887 transitions. Second operand  has 4 states, 4 states have (on average 175.25) internal successors, (701), 4 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:06,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:06,014 INFO  L93              Difference]: Finished difference Result 12897 states and 21376 transitions.
[2023-12-25 14:18:06,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:06,015 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 175.25) internal successors, (701), 4 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 701
[2023-12-25 14:18:06,016 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:06,025 INFO  L225             Difference]: With dead ends: 12897
[2023-12-25 14:18:06,025 INFO  L226             Difference]: Without dead ends: 8764
[2023-12-25 14:18:06,031 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:06,032 INFO  L413           NwaCegarLoop]: 8157 mSDtfsCounter, 6634 mSDsluCounter, 15221 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6634 SdHoareTripleChecker+Valid, 23378 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 14:18:06,032 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6634 Valid, 23378 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:06,041 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8764 states.
[2023-12-25 14:18:06,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8764 to 4762.
[2023-12-25 14:18:06,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4762 states, 4761 states have (on average 1.6580550304557866) internal successors, (7894), 4761 states have internal predecessors, (7894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:06,096 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 7894 transitions.
[2023-12-25 14:18:06,097 INFO  L78                 Accepts]: Start accepts. Automaton has 4762 states and 7894 transitions. Word has length 701
[2023-12-25 14:18:06,097 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:06,097 INFO  L495      AbstractCegarLoop]: Abstraction has 4762 states and 7894 transitions.
[2023-12-25 14:18:06,097 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 175.25) internal successors, (701), 4 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:06,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 4762 states and 7894 transitions.
[2023-12-25 14:18:06,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 703
[2023-12-25 14:18:06,101 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:06,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:06,101 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2023-12-25 14:18:06,102 INFO  L420      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:06,102 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:06,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -131896056, now seen corresponding path program 1 times
[2023-12-25 14:18:06,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:06,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131104997]
[2023-12-25 14:18:06,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:06,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:06,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:06,752 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 14:18:06,752 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:06,752 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131104997]
[2023-12-25 14:18:06,752 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131104997] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:06,752 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:06,752 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:06,752 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802524684]
[2023-12-25 14:18:06,752 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:06,753 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:06,753 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:06,754 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:06,754 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:06,754 INFO  L87              Difference]: Start difference. First operand 4762 states and 7894 transitions. Second operand  has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:06,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:06,857 INFO  L93              Difference]: Finished difference Result 12902 states and 21381 transitions.
[2023-12-25 14:18:06,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:18:06,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 702
[2023-12-25 14:18:06,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:06,865 INFO  L225             Difference]: With dead ends: 12902
[2023-12-25 14:18:06,865 INFO  L226             Difference]: Without dead ends: 8764
[2023-12-25 14:18:06,868 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 14:18:06,869 INFO  L413           NwaCegarLoop]: 8148 mSDtfsCounter, 6628 mSDsluCounter, 15210 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6628 SdHoareTripleChecker+Valid, 23358 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:18:06,869 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6628 Valid, 23358 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:06,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8764 states.
[2023-12-25 14:18:06,909 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8764 to 4764.
[2023-12-25 14:18:06,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4764 states, 4763 states have (on average 1.6577787108964939) internal successors, (7896), 4763 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:06,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4764 states to 4764 states and 7896 transitions.
[2023-12-25 14:18:06,917 INFO  L78                 Accepts]: Start accepts. Automaton has 4764 states and 7896 transitions. Word has length 702
[2023-12-25 14:18:06,917 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:06,917 INFO  L495      AbstractCegarLoop]: Abstraction has 4764 states and 7896 transitions.
[2023-12-25 14:18:06,917 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 175.5) internal successors, (702), 4 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:06,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 4764 states and 7896 transitions.
[2023-12-25 14:18:06,921 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 704
[2023-12-25 14:18:06,921 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:06,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:06,921 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2023-12-25 14:18:06,921 INFO  L420      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:06,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:06,922 INFO  L85        PathProgramCache]: Analyzing trace with hash -1379581092, now seen corresponding path program 1 times
[2023-12-25 14:18:06,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:06,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036992899]
[2023-12-25 14:18:06,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:06,923 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:07,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:07,626 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 14:18:07,626 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:07,626 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036992899]
[2023-12-25 14:18:07,627 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036992899] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:07,627 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:07,627 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 14:18:07,627 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924556283]
[2023-12-25 14:18:07,627 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:07,627 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:18:07,627 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:07,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:18:07,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:07,628 INFO  L87              Difference]: Start difference. First operand 4764 states and 7896 transitions. Second operand  has 5 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:07,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:07,766 INFO  L93              Difference]: Finished difference Result 12912 states and 21393 transitions.
[2023-12-25 14:18:07,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 14:18:07,767 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 703
[2023-12-25 14:18:07,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:07,774 INFO  L225             Difference]: With dead ends: 12912
[2023-12-25 14:18:07,774 INFO  L226             Difference]: Without dead ends: 8772
[2023-12-25 14:18:07,777 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 14:18:07,778 INFO  L413           NwaCegarLoop]: 8146 mSDtfsCounter, 6631 mSDsluCounter, 23349 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6631 SdHoareTripleChecker+Valid, 31495 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:18:07,778 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6631 Valid, 31495 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:07,782 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8772 states.
[2023-12-25 14:18:07,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8772 to 4767.
[2023-12-25 14:18:07,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4767 states, 4766 states have (on average 1.6577843054972723) internal successors, (7901), 4766 states have internal predecessors, (7901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:07,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 7901 transitions.
[2023-12-25 14:18:07,822 INFO  L78                 Accepts]: Start accepts. Automaton has 4767 states and 7901 transitions. Word has length 703
[2023-12-25 14:18:07,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:07,823 INFO  L495      AbstractCegarLoop]: Abstraction has 4767 states and 7901 transitions.
[2023-12-25 14:18:07,823 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:07,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 4767 states and 7901 transitions.
[2023-12-25 14:18:07,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 705
[2023-12-25 14:18:07,827 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:07,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:07,827 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2023-12-25 14:18:07,827 INFO  L420      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:07,827 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:07,828 INFO  L85        PathProgramCache]: Analyzing trace with hash 1208914796, now seen corresponding path program 1 times
[2023-12-25 14:18:07,828 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:07,828 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828702920]
[2023-12-25 14:18:07,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:07,828 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:07,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:08,425 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 14:18:08,425 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:08,425 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828702920]
[2023-12-25 14:18:08,425 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828702920] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:08,425 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:08,425 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:08,425 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073723394]
[2023-12-25 14:18:08,426 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:08,426 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:08,426 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:08,427 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:08,427 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:08,427 INFO  L87              Difference]: Start difference. First operand 4767 states and 7901 transitions. Second operand  has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:08,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:08,532 INFO  L93              Difference]: Finished difference Result 12915 states and 21398 transitions.
[2023-12-25 14:18:08,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:08,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 704
[2023-12-25 14:18:08,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:08,540 INFO  L225             Difference]: With dead ends: 12915
[2023-12-25 14:18:08,540 INFO  L226             Difference]: Without dead ends: 8772
[2023-12-25 14:18:08,544 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:08,544 INFO  L413           NwaCegarLoop]: 8137 mSDtfsCounter, 6628 mSDsluCounter, 15201 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6628 SdHoareTripleChecker+Valid, 23338 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 14:18:08,544 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6628 Valid, 23338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:08,548 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8772 states.
[2023-12-25 14:18:08,583 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8772 to 4772.
[2023-12-25 14:18:08,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4772 states, 4771 states have (on average 1.6575141479773632) internal successors, (7908), 4771 states have internal predecessors, (7908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:08,590 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 7908 transitions.
[2023-12-25 14:18:08,590 INFO  L78                 Accepts]: Start accepts. Automaton has 4772 states and 7908 transitions. Word has length 704
[2023-12-25 14:18:08,590 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:08,590 INFO  L495      AbstractCegarLoop]: Abstraction has 4772 states and 7908 transitions.
[2023-12-25 14:18:08,590 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:08,590 INFO  L276                IsEmpty]: Start isEmpty. Operand 4772 states and 7908 transitions.
[2023-12-25 14:18:08,594 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 706
[2023-12-25 14:18:08,594 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:08,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:08,594 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2023-12-25 14:18:08,595 INFO  L420      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:08,595 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:08,595 INFO  L85        PathProgramCache]: Analyzing trace with hash 1590940814, now seen corresponding path program 1 times
[2023-12-25 14:18:08,595 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:08,595 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547687099]
[2023-12-25 14:18:08,595 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:08,595 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:08,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:09,212 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 14:18:09,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:09,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547687099]
[2023-12-25 14:18:09,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547687099] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:09,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:09,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:09,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743241685]
[2023-12-25 14:18:09,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:09,213 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:09,213 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:09,214 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:09,214 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:09,214 INFO  L87              Difference]: Start difference. First operand 4772 states and 7908 transitions. Second operand  has 4 states, 4 states have (on average 176.25) internal successors, (705), 4 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:09,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:09,318 INFO  L93              Difference]: Finished difference Result 12924 states and 21409 transitions.
[2023-12-25 14:18:09,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:09,318 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 176.25) internal successors, (705), 4 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 705
[2023-12-25 14:18:09,319 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:09,325 INFO  L225             Difference]: With dead ends: 12924
[2023-12-25 14:18:09,325 INFO  L226             Difference]: Without dead ends: 8776
[2023-12-25 14:18:09,329 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:09,329 INFO  L413           NwaCegarLoop]: 8127 mSDtfsCounter, 6625 mSDsluCounter, 15191 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6625 SdHoareTripleChecker+Valid, 23318 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 14:18:09,329 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6625 Valid, 23318 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:09,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8776 states.
[2023-12-25 14:18:09,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8776 to 4777.
[2023-12-25 14:18:09,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4777 states, 4776 states have (on average 1.6572445561139029) internal successors, (7915), 4776 states have internal predecessors, (7915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:09,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 7915 transitions.
[2023-12-25 14:18:09,373 INFO  L78                 Accepts]: Start accepts. Automaton has 4777 states and 7915 transitions. Word has length 705
[2023-12-25 14:18:09,373 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:09,373 INFO  L495      AbstractCegarLoop]: Abstraction has 4777 states and 7915 transitions.
[2023-12-25 14:18:09,373 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 176.25) internal successors, (705), 4 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:09,373 INFO  L276                IsEmpty]: Start isEmpty. Operand 4777 states and 7915 transitions.
[2023-12-25 14:18:09,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 707
[2023-12-25 14:18:09,377 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:09,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:09,377 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2023-12-25 14:18:09,377 INFO  L420      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:09,378 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:09,378 INFO  L85        PathProgramCache]: Analyzing trace with hash -1828209610, now seen corresponding path program 1 times
[2023-12-25 14:18:09,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:09,378 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638030580]
[2023-12-25 14:18:09,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:09,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:09,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:09,982 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 14:18:09,983 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:09,983 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638030580]
[2023-12-25 14:18:09,983 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638030580] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:09,983 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:09,983 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:09,983 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666522564]
[2023-12-25 14:18:09,983 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:09,984 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:09,984 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:09,984 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:09,984 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:09,984 INFO  L87              Difference]: Start difference. First operand 4777 states and 7915 transitions. Second operand  has 4 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:10,090 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:10,090 INFO  L93              Difference]: Finished difference Result 12933 states and 21420 transitions.
[2023-12-25 14:18:10,091 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:10,091 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 706
[2023-12-25 14:18:10,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:10,098 INFO  L225             Difference]: With dead ends: 12933
[2023-12-25 14:18:10,098 INFO  L226             Difference]: Without dead ends: 8780
[2023-12-25 14:18:10,101 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:10,101 INFO  L413           NwaCegarLoop]: 8117 mSDtfsCounter, 6622 mSDsluCounter, 15181 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6622 SdHoareTripleChecker+Valid, 23298 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 14:18:10,101 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6622 Valid, 23298 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:10,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8780 states.
[2023-12-25 14:18:10,138 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8780 to 4782.
[2023-12-25 14:18:10,141 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4782 states, 4781 states have (on average 1.6569755281321898) internal successors, (7922), 4781 states have internal predecessors, (7922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:10,144 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 7922 transitions.
[2023-12-25 14:18:10,144 INFO  L78                 Accepts]: Start accepts. Automaton has 4782 states and 7922 transitions. Word has length 706
[2023-12-25 14:18:10,145 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:10,145 INFO  L495      AbstractCegarLoop]: Abstraction has 4782 states and 7922 transitions.
[2023-12-25 14:18:10,145 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 176.5) internal successors, (706), 4 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:10,145 INFO  L276                IsEmpty]: Start isEmpty. Operand 4782 states and 7922 transitions.
[2023-12-25 14:18:10,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 708
[2023-12-25 14:18:10,149 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:10,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:10,149 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2023-12-25 14:18:10,149 INFO  L420      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:10,149 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:10,149 INFO  L85        PathProgramCache]: Analyzing trace with hash -1799781824, now seen corresponding path program 1 times
[2023-12-25 14:18:10,149 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:10,149 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054897141]
[2023-12-25 14:18:10,150 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:10,150 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:10,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:10,840 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 14:18:10,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:10,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054897141]
[2023-12-25 14:18:10,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054897141] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:10,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:10,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:10,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660113119]
[2023-12-25 14:18:10,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:10,842 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:10,842 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:10,842 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:10,842 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:10,842 INFO  L87              Difference]: Start difference. First operand 4782 states and 7922 transitions. Second operand  has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:10,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:10,950 INFO  L93              Difference]: Finished difference Result 12942 states and 21431 transitions.
[2023-12-25 14:18:10,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:10,950 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 707
[2023-12-25 14:18:10,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:10,959 INFO  L225             Difference]: With dead ends: 12942
[2023-12-25 14:18:10,959 INFO  L226             Difference]: Without dead ends: 8784
[2023-12-25 14:18:10,963 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:10,963 INFO  L413           NwaCegarLoop]: 8107 mSDtfsCounter, 6619 mSDsluCounter, 15171 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6619 SdHoareTripleChecker+Valid, 23278 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 14:18:10,964 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6619 Valid, 23278 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:10,969 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8784 states.
[2023-12-25 14:18:11,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8784 to 4787.
[2023-12-25 14:18:11,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4787 states, 4786 states have (on average 1.6567070622649394) internal successors, (7929), 4786 states have internal predecessors, (7929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:11,013 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 7929 transitions.
[2023-12-25 14:18:11,013 INFO  L78                 Accepts]: Start accepts. Automaton has 4787 states and 7929 transitions. Word has length 707
[2023-12-25 14:18:11,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:11,014 INFO  L495      AbstractCegarLoop]: Abstraction has 4787 states and 7929 transitions.
[2023-12-25 14:18:11,014 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:11,014 INFO  L276                IsEmpty]: Start isEmpty. Operand 4787 states and 7929 transitions.
[2023-12-25 14:18:11,018 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 709
[2023-12-25 14:18:11,018 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:11,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:11,018 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2023-12-25 14:18:11,018 INFO  L420      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:11,018 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:11,019 INFO  L85        PathProgramCache]: Analyzing trace with hash 543481216, now seen corresponding path program 1 times
[2023-12-25 14:18:11,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:11,019 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647466273]
[2023-12-25 14:18:11,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:11,019 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:11,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:11,594 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 14:18:11,595 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:11,595 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647466273]
[2023-12-25 14:18:11,595 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647466273] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:11,595 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:11,595 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:11,595 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239136930]
[2023-12-25 14:18:11,595 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:11,596 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:11,596 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:11,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:11,596 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:11,596 INFO  L87              Difference]: Start difference. First operand 4787 states and 7929 transitions. Second operand  has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:11,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:11,698 INFO  L93              Difference]: Finished difference Result 12947 states and 21436 transitions.
[2023-12-25 14:18:11,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:18:11,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 708
[2023-12-25 14:18:11,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:11,707 INFO  L225             Difference]: With dead ends: 12947
[2023-12-25 14:18:11,707 INFO  L226             Difference]: Without dead ends: 8784
[2023-12-25 14:18:11,711 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 14:18:11,711 INFO  L413           NwaCegarLoop]: 8098 mSDtfsCounter, 6613 mSDsluCounter, 15160 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6613 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:18:11,711 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6613 Valid, 23258 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:11,715 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8784 states.
[2023-12-25 14:18:11,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8784 to 4789.
[2023-12-25 14:18:11,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4789 states, 4788 states have (on average 1.6564327485380117) internal successors, (7931), 4788 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:11,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4789 states to 4789 states and 7931 transitions.
[2023-12-25 14:18:11,754 INFO  L78                 Accepts]: Start accepts. Automaton has 4789 states and 7931 transitions. Word has length 708
[2023-12-25 14:18:11,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:11,755 INFO  L495      AbstractCegarLoop]: Abstraction has 4789 states and 7931 transitions.
[2023-12-25 14:18:11,755 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:11,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 4789 states and 7931 transitions.
[2023-12-25 14:18:11,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 710
[2023-12-25 14:18:11,759 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:11,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:11,759 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2023-12-25 14:18:11,759 INFO  L420      AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:11,759 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:11,759 INFO  L85        PathProgramCache]: Analyzing trace with hash 1160372568, now seen corresponding path program 1 times
[2023-12-25 14:18:11,759 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:11,760 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414016108]
[2023-12-25 14:18:11,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:11,760 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:11,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:12,370 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 14:18:12,370 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:12,370 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414016108]
[2023-12-25 14:18:12,370 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414016108] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:12,370 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:12,370 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:12,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451669897]
[2023-12-25 14:18:12,370 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:12,371 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:12,371 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:12,372 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:12,372 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 14:18:12,372 INFO  L87              Difference]: Start difference. First operand 4789 states and 7931 transitions. Second operand  has 4 states, 4 states have (on average 177.25) internal successors, (709), 4 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:12,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:12,477 INFO  L93              Difference]: Finished difference Result 12957 states and 21448 transitions.
[2023-12-25 14:18:12,477 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:12,477 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 177.25) internal successors, (709), 4 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 709
[2023-12-25 14:18:12,478 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:12,484 INFO  L225             Difference]: With dead ends: 12957
[2023-12-25 14:18:12,484 INFO  L226             Difference]: Without dead ends: 8792
[2023-12-25 14:18:12,488 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:12,488 INFO  L413           NwaCegarLoop]: 8097 mSDtfsCounter, 6615 mSDsluCounter, 15161 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6615 SdHoareTripleChecker+Valid, 23258 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 14:18:12,488 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6615 Valid, 23258 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:12,493 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8792 states.
[2023-12-25 14:18:12,525 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8792 to 4792.
[2023-12-25 14:18:12,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4792 states, 4791 states have (on average 1.6564391567522438) internal successors, (7936), 4791 states have internal predecessors, (7936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:12,532 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 7936 transitions.
[2023-12-25 14:18:12,532 INFO  L78                 Accepts]: Start accepts. Automaton has 4792 states and 7936 transitions. Word has length 709
[2023-12-25 14:18:12,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:12,532 INFO  L495      AbstractCegarLoop]: Abstraction has 4792 states and 7936 transitions.
[2023-12-25 14:18:12,532 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 177.25) internal successors, (709), 4 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:12,532 INFO  L276                IsEmpty]: Start isEmpty. Operand 4792 states and 7936 transitions.
[2023-12-25 14:18:12,536 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 711
[2023-12-25 14:18:12,536 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:12,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:12,536 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2023-12-25 14:18:12,537 INFO  L420      AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:12,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:12,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -1151029082, now seen corresponding path program 1 times
[2023-12-25 14:18:12,537 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:12,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543106834]
[2023-12-25 14:18:12,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:12,537 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:12,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:13,398 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 14:18:13,398 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:13,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543106834]
[2023-12-25 14:18:13,398 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543106834] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 14:18:13,398 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 14:18:13,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 14:18:13,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551957229]
[2023-12-25 14:18:13,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:13,399 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:18:13,399 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:13,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:18:13,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 14:18:13,400 INFO  L87              Difference]: Start difference. First operand 4792 states and 7936 transitions. Second operand  has 5 states, 5 states have (on average 142.0) internal successors, (710), 4 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:13,579 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:13,579 INFO  L93              Difference]: Finished difference Result 12548 states and 20768 transitions.
[2023-12-25 14:18:13,579 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:13,579 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 142.0) internal successors, (710), 4 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 710
[2023-12-25 14:18:13,580 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:13,586 INFO  L225             Difference]: With dead ends: 12548
[2023-12-25 14:18:13,586 INFO  L226             Difference]: Without dead ends: 8380
[2023-12-25 14:18:13,589 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 14:18:13,589 INFO  L413           NwaCegarLoop]: 7069 mSDtfsCounter, 25348 mSDsluCounter, 14132 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25348 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:18:13,589 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [25348 Valid, 21201 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:13,593 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8380 states.
[2023-12-25 14:18:13,628 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8380 to 4996.
[2023-12-25 14:18:13,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4996 states, 4995 states have (on average 1.6566566566566567) internal successors, (8275), 4995 states have internal predecessors, (8275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:13,635 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 8275 transitions.
[2023-12-25 14:18:13,635 INFO  L78                 Accepts]: Start accepts. Automaton has 4996 states and 8275 transitions. Word has length 710
[2023-12-25 14:18:13,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:13,635 INFO  L495      AbstractCegarLoop]: Abstraction has 4996 states and 8275 transitions.
[2023-12-25 14:18:13,635 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 142.0) internal successors, (710), 4 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:13,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 4996 states and 8275 transitions.
[2023-12-25 14:18:13,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3400
[2023-12-25 14:18:13,696 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:13,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:18:13,698 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2023-12-25 14:18:13,698 INFO  L420      AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:13,698 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:13,699 INFO  L85        PathProgramCache]: Analyzing trace with hash 1030171081, now seen corresponding path program 1 times
[2023-12-25 14:18:13,699 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:13,699 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051090091]
[2023-12-25 14:18:13,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:13,699 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:13,943 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:13,944 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182827810]
[2023-12-25 14:18:13,944 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:13,944 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:13,945 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:13,947 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 14:18:13,989 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 14:18:17,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:17,257 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14689 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:17,361 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:18,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 112 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:18,417 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:18,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2023-12-25 14:18:18,483 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:18,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051090091]
[2023-12-25 14:18:18,483 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:18,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182827810]
[2023-12-25 14:18:18,483 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [182827810] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:18,483 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:18,483 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:18,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710056628]
[2023-12-25 14:18:18,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:18,487 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:18,487 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:18,488 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:18,488 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:18,489 INFO  L87              Difference]: Start difference. First operand 4996 states and 8275 transitions. Second operand  has 4 states, 4 states have (on average 748.25) internal successors, (2993), 4 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:18,613 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:18,614 INFO  L93              Difference]: Finished difference Result 13166 states and 21794 transitions.
[2023-12-25 14:18:18,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:18,615 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 748.25) internal successors, (2993), 4 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3399
[2023-12-25 14:18:18,617 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:18,624 INFO  L225             Difference]: With dead ends: 13166
[2023-12-25 14:18:18,624 INFO  L226             Difference]: Without dead ends: 8998
[2023-12-25 14:18:18,627 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6797 GetRequests, 6787 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:18,628 INFO  L413           NwaCegarLoop]: 8092 mSDtfsCounter, 6615 mSDsluCounter, 15156 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6615 SdHoareTripleChecker+Valid, 23248 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 14:18:18,628 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6615 Valid, 23248 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:18,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8998 states.
[2023-12-25 14:18:18,678 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8998 to 4996.
[2023-12-25 14:18:18,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4996 states, 4995 states have (on average 1.6566566566566567) internal successors, (8275), 4995 states have internal predecessors, (8275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:18,685 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 8275 transitions.
[2023-12-25 14:18:18,685 INFO  L78                 Accepts]: Start accepts. Automaton has 4996 states and 8275 transitions. Word has length 3399
[2023-12-25 14:18:18,686 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:18,686 INFO  L495      AbstractCegarLoop]: Abstraction has 4996 states and 8275 transitions.
[2023-12-25 14:18:18,687 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 748.25) internal successors, (2993), 4 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:18,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 4996 states and 8275 transitions.
[2023-12-25 14:18:18,747 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3401
[2023-12-25 14:18:18,747 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:18,749 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 14:18:18,789 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-25 14:18:18,970 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,SelfDestructingSolverStorable45
[2023-12-25 14:18:18,971 INFO  L420      AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:18,972 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:18,972 INFO  L85        PathProgramCache]: Analyzing trace with hash -534551441, now seen corresponding path program 1 times
[2023-12-25 14:18:18,972 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:18,973 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676301764]
[2023-12-25 14:18:18,973 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:18,973 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:19,210 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:19,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249415994]
[2023-12-25 14:18:19,211 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:19,211 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:19,211 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:19,212 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 14:18:19,250 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 14:18:22,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:22,340 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14692 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:22,381 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:23,408 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 114 proven. 408 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:23,408 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:23,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked.
[2023-12-25 14:18:23,456 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:23,456 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676301764]
[2023-12-25 14:18:23,456 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:23,456 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249415994]
[2023-12-25 14:18:23,456 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [249415994] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:23,456 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:23,457 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:23,457 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082162892]
[2023-12-25 14:18:23,457 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:23,459 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:23,459 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:23,461 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:23,461 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:23,461 INFO  L87              Difference]: Start difference. First operand 4996 states and 8275 transitions. Second operand  has 4 states, 4 states have (on average 749.5) internal successors, (2998), 4 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:23,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:23,672 INFO  L93              Difference]: Finished difference Result 13171 states and 21801 transitions.
[2023-12-25 14:18:23,672 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:23,673 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 749.5) internal successors, (2998), 4 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3400
[2023-12-25 14:18:23,675 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:23,680 INFO  L225             Difference]: With dead ends: 13171
[2023-12-25 14:18:23,681 INFO  L226             Difference]: Without dead ends: 9000
[2023-12-25 14:18:23,683 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6799 GetRequests, 6789 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:23,684 INFO  L413           NwaCegarLoop]: 8082 mSDtfsCounter, 6610 mSDsluCounter, 15146 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6610 SdHoareTripleChecker+Valid, 23228 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 14:18:23,684 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6610 Valid, 23228 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:23,688 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9000 states.
[2023-12-25 14:18:23,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9000 to 5001.
[2023-12-25 14:18:23,724 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5001 states, 5000 states have (on average 1.6564) internal successors, (8282), 5000 states have internal predecessors, (8282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:23,728 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 8282 transitions.
[2023-12-25 14:18:23,728 INFO  L78                 Accepts]: Start accepts. Automaton has 5001 states and 8282 transitions. Word has length 3400
[2023-12-25 14:18:23,730 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:23,730 INFO  L495      AbstractCegarLoop]: Abstraction has 5001 states and 8282 transitions.
[2023-12-25 14:18:23,730 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 749.5) internal successors, (2998), 4 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:23,730 INFO  L276                IsEmpty]: Start isEmpty. Operand 5001 states and 8282 transitions.
[2023-12-25 14:18:23,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3402
[2023-12-25 14:18:23,791 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:23,792 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 14:18:23,830 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-25 14:18:24,016 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,SelfDestructingSolverStorable46
[2023-12-25 14:18:24,017 INFO  L420      AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:24,017 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:24,018 INFO  L85        PathProgramCache]: Analyzing trace with hash -834112427, now seen corresponding path program 1 times
[2023-12-25 14:18:24,018 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:24,018 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972156930]
[2023-12-25 14:18:24,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:24,018 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:24,248 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:24,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959406347]
[2023-12-25 14:18:24,249 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:24,249 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:24,249 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:24,266 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 14:18:24,284 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 14:18:27,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:27,356 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14695 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:27,394 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:28,418 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 118 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:28,418 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:28,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2023-12-25 14:18:28,465 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:28,465 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972156930]
[2023-12-25 14:18:28,465 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:28,465 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959406347]
[2023-12-25 14:18:28,465 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959406347] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:28,465 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:28,466 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:28,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037731555]
[2023-12-25 14:18:28,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:28,468 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:28,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:28,470 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:28,470 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:28,470 INFO  L87              Difference]: Start difference. First operand 5001 states and 8282 transitions. Second operand  has 4 states, 4 states have (on average 750.75) internal successors, (3003), 4 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:28,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:28,592 INFO  L93              Difference]: Finished difference Result 13186 states and 21822 transitions.
[2023-12-25 14:18:28,593 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:28,593 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 750.75) internal successors, (3003), 4 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3401
[2023-12-25 14:18:28,595 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:28,601 INFO  L225             Difference]: With dead ends: 13186
[2023-12-25 14:18:28,601 INFO  L226             Difference]: Without dead ends: 9004
[2023-12-25 14:18:28,605 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6801 GetRequests, 6791 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:28,606 INFO  L413           NwaCegarLoop]: 8072 mSDtfsCounter, 6607 mSDsluCounter, 15136 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6607 SdHoareTripleChecker+Valid, 23208 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 14:18:28,606 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6607 Valid, 23208 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:28,610 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9004 states.
[2023-12-25 14:18:28,646 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9004 to 5006.
[2023-12-25 14:18:28,649 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5006 states, 5005 states have (on average 1.6561438561438562) internal successors, (8289), 5005 states have internal predecessors, (8289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:28,660 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 8289 transitions.
[2023-12-25 14:18:28,660 INFO  L78                 Accepts]: Start accepts. Automaton has 5006 states and 8289 transitions. Word has length 3401
[2023-12-25 14:18:28,662 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:28,662 INFO  L495      AbstractCegarLoop]: Abstraction has 5006 states and 8289 transitions.
[2023-12-25 14:18:28,662 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 750.75) internal successors, (3003), 4 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:28,662 INFO  L276                IsEmpty]: Start isEmpty. Operand 5006 states and 8289 transitions.
[2023-12-25 14:18:28,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3403
[2023-12-25 14:18:28,722 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:28,724 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 14:18:28,765 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 14:18:28,936 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:28,937 INFO  L420      AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:28,937 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:28,938 INFO  L85        PathProgramCache]: Analyzing trace with hash -898028829, now seen corresponding path program 1 times
[2023-12-25 14:18:28,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:28,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59774482]
[2023-12-25 14:18:28,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:28,938 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:29,176 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:29,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066245604]
[2023-12-25 14:18:29,177 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:29,177 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:29,177 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:29,193 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 14:18:29,208 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 14:18:32,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:32,501 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14698 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:32,540 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:33,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 122 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:33,522 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:33,570 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked.
[2023-12-25 14:18:33,571 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:33,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59774482]
[2023-12-25 14:18:33,571 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:33,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066245604]
[2023-12-25 14:18:33,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066245604] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:33,571 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:33,571 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:33,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142055515]
[2023-12-25 14:18:33,572 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:33,574 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:33,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:33,576 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:33,576 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:33,576 INFO  L87              Difference]: Start difference. First operand 5006 states and 8289 transitions. Second operand  has 4 states, 4 states have (on average 752.0) internal successors, (3008), 4 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:33,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:33,851 INFO  L93              Difference]: Finished difference Result 13201 states and 21843 transitions.
[2023-12-25 14:18:33,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:33,852 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 752.0) internal successors, (3008), 4 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3402
[2023-12-25 14:18:33,854 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:33,859 INFO  L225             Difference]: With dead ends: 13201
[2023-12-25 14:18:33,859 INFO  L226             Difference]: Without dead ends: 9008
[2023-12-25 14:18:33,862 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6803 GetRequests, 6793 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:33,862 INFO  L413           NwaCegarLoop]: 8062 mSDtfsCounter, 6604 mSDsluCounter, 15126 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6604 SdHoareTripleChecker+Valid, 23188 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 14:18:33,862 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6604 Valid, 23188 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:33,867 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9008 states.
[2023-12-25 14:18:33,904 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9008 to 5011.
[2023-12-25 14:18:33,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5011 states, 5010 states have (on average 1.6558882235528942) internal successors, (8296), 5010 states have internal predecessors, (8296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:33,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 8296 transitions.
[2023-12-25 14:18:33,911 INFO  L78                 Accepts]: Start accepts. Automaton has 5011 states and 8296 transitions. Word has length 3402
[2023-12-25 14:18:33,913 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:33,913 INFO  L495      AbstractCegarLoop]: Abstraction has 5011 states and 8296 transitions.
[2023-12-25 14:18:33,913 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 752.0) internal successors, (3008), 4 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:33,913 INFO  L276                IsEmpty]: Start isEmpty. Operand 5011 states and 8296 transitions.
[2023-12-25 14:18:33,973 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3404
[2023-12-25 14:18:33,973 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:33,988 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 14:18:34,076 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-25 14:18:34,206 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48
[2023-12-25 14:18:34,207 INFO  L420      AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:34,207 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:34,208 INFO  L85        PathProgramCache]: Analyzing trace with hash -137794335, now seen corresponding path program 1 times
[2023-12-25 14:18:34,208 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:34,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015872073]
[2023-12-25 14:18:34,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:34,208 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:34,469 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:34,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355985742]
[2023-12-25 14:18:34,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:34,470 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:34,470 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:34,471 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 14:18:34,501 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 14:18:37,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:37,748 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14701 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:37,792 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:38,746 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 126 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:38,746 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:38,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-25 14:18:38,788 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:38,788 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015872073]
[2023-12-25 14:18:38,788 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:38,788 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355985742]
[2023-12-25 14:18:38,788 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [355985742] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:38,788 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:38,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:38,789 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85981390]
[2023-12-25 14:18:38,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:38,791 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:38,791 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:38,793 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:38,793 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:38,793 INFO  L87              Difference]: Start difference. First operand 5011 states and 8296 transitions. Second operand  has 4 states, 4 states have (on average 753.25) internal successors, (3013), 4 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:38,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:38,909 INFO  L93              Difference]: Finished difference Result 13216 states and 21864 transitions.
[2023-12-25 14:18:38,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:38,910 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 753.25) internal successors, (3013), 4 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3403
[2023-12-25 14:18:38,912 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:38,919 INFO  L225             Difference]: With dead ends: 13216
[2023-12-25 14:18:38,919 INFO  L226             Difference]: Without dead ends: 9012
[2023-12-25 14:18:38,923 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6805 GetRequests, 6795 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:38,924 INFO  L413           NwaCegarLoop]: 8052 mSDtfsCounter, 6601 mSDsluCounter, 15116 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6601 SdHoareTripleChecker+Valid, 23168 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 14:18:38,924 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6601 Valid, 23168 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:38,931 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9012 states.
[2023-12-25 14:18:38,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9012 to 5016.
[2023-12-25 14:18:38,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5016 states, 5015 states have (on average 1.6556331006979064) internal successors, (8303), 5015 states have internal predecessors, (8303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:38,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 8303 transitions.
[2023-12-25 14:18:38,974 INFO  L78                 Accepts]: Start accepts. Automaton has 5016 states and 8303 transitions. Word has length 3403
[2023-12-25 14:18:38,975 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:38,975 INFO  L495      AbstractCegarLoop]: Abstraction has 5016 states and 8303 transitions.
[2023-12-25 14:18:38,976 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 753.25) internal successors, (3013), 4 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:38,976 INFO  L276                IsEmpty]: Start isEmpty. Operand 5016 states and 8303 transitions.
[2023-12-25 14:18:39,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3405
[2023-12-25 14:18:39,038 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:39,039 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 14:18:39,080 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-12-25 14:18:39,252 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49
[2023-12-25 14:18:39,253 INFO  L420      AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:39,253 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:39,254 INFO  L85        PathProgramCache]: Analyzing trace with hash -1751407785, now seen corresponding path program 1 times
[2023-12-25 14:18:39,254 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:39,254 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713258991]
[2023-12-25 14:18:39,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:39,254 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:39,453 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:39,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514937893]
[2023-12-25 14:18:39,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:39,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:39,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:39,455 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 14:18:39,479 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 14:18:42,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:42,516 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14704 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:42,549 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:43,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 130 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:43,542 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:43,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked.
[2023-12-25 14:18:43,591 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:43,591 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713258991]
[2023-12-25 14:18:43,591 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:43,591 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514937893]
[2023-12-25 14:18:43,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514937893] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:43,592 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:43,592 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:43,592 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352756856]
[2023-12-25 14:18:43,592 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:43,609 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:43,609 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:43,611 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:43,611 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:43,611 INFO  L87              Difference]: Start difference. First operand 5016 states and 8303 transitions. Second operand  has 4 states, 4 states have (on average 754.5) internal successors, (3018), 4 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:43,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:43,926 INFO  L93              Difference]: Finished difference Result 13231 states and 21885 transitions.
[2023-12-25 14:18:43,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:43,927 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 754.5) internal successors, (3018), 4 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3404
[2023-12-25 14:18:43,929 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:43,934 INFO  L225             Difference]: With dead ends: 13231
[2023-12-25 14:18:43,934 INFO  L226             Difference]: Without dead ends: 9016
[2023-12-25 14:18:43,936 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6807 GetRequests, 6797 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:43,936 INFO  L413           NwaCegarLoop]: 8042 mSDtfsCounter, 6598 mSDsluCounter, 15106 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6598 SdHoareTripleChecker+Valid, 23148 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 14:18:43,936 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6598 Valid, 23148 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:43,940 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9016 states.
[2023-12-25 14:18:43,979 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9016 to 5021.
[2023-12-25 14:18:43,983 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5021 states, 5020 states have (on average 1.655378486055777) internal successors, (8310), 5020 states have internal predecessors, (8310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:43,987 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 8310 transitions.
[2023-12-25 14:18:43,987 INFO  L78                 Accepts]: Start accepts. Automaton has 5021 states and 8310 transitions. Word has length 3404
[2023-12-25 14:18:43,989 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:43,989 INFO  L495      AbstractCegarLoop]: Abstraction has 5021 states and 8310 transitions.
[2023-12-25 14:18:43,990 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 754.5) internal successors, (3018), 4 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:43,990 INFO  L276                IsEmpty]: Start isEmpty. Operand 5021 states and 8310 transitions.
[2023-12-25 14:18:44,053 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3406
[2023-12-25 14:18:44,053 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:44,055 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 14:18:44,101 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2023-12-25 14:18:44,268 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:44,268 INFO  L420      AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:44,268 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:44,269 INFO  L85        PathProgramCache]: Analyzing trace with hash 1908495213, now seen corresponding path program 1 times
[2023-12-25 14:18:44,269 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:44,269 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618240546]
[2023-12-25 14:18:44,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:44,270 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:44,508 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:44,508 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144310736]
[2023-12-25 14:18:44,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:44,509 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:44,509 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:44,530 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 14:18:44,552 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 14:18:47,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:47,802 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14707 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:47,835 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:48,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 134 proven. 388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:48,852 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:48,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked.
[2023-12-25 14:18:48,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:48,896 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618240546]
[2023-12-25 14:18:48,896 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:48,896 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144310736]
[2023-12-25 14:18:48,896 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [144310736] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:48,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:48,897 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:48,897 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685001508]
[2023-12-25 14:18:48,897 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:48,899 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:48,899 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:48,901 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:48,901 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:48,901 INFO  L87              Difference]: Start difference. First operand 5021 states and 8310 transitions. Second operand  has 4 states, 4 states have (on average 755.75) internal successors, (3023), 4 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:49,018 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:49,018 INFO  L93              Difference]: Finished difference Result 13246 states and 21906 transitions.
[2023-12-25 14:18:49,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:49,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 755.75) internal successors, (3023), 4 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3405
[2023-12-25 14:18:49,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:49,029 INFO  L225             Difference]: With dead ends: 13246
[2023-12-25 14:18:49,029 INFO  L226             Difference]: Without dead ends: 9020
[2023-12-25 14:18:49,033 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6809 GetRequests, 6799 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:49,034 INFO  L413           NwaCegarLoop]: 8032 mSDtfsCounter, 6595 mSDsluCounter, 15096 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6595 SdHoareTripleChecker+Valid, 23128 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 14:18:49,034 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6595 Valid, 23128 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:49,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9020 states.
[2023-12-25 14:18:49,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9020 to 5026.
[2023-12-25 14:18:49,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5026 states, 5025 states have (on average 1.6551243781094527) internal successors, (8317), 5025 states have internal predecessors, (8317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:49,088 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 8317 transitions.
[2023-12-25 14:18:49,088 INFO  L78                 Accepts]: Start accepts. Automaton has 5026 states and 8317 transitions. Word has length 3405
[2023-12-25 14:18:49,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:49,089 INFO  L495      AbstractCegarLoop]: Abstraction has 5026 states and 8317 transitions.
[2023-12-25 14:18:49,090 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 755.75) internal successors, (3023), 4 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:49,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 5026 states and 8317 transitions.
[2023-12-25 14:18:49,150 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3407
[2023-12-25 14:18:49,150 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:49,151 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 14:18:49,193 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-12-25 14:18:49,354 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:49,354 INFO  L420      AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:49,354 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:49,355 INFO  L85        PathProgramCache]: Analyzing trace with hash 517180875, now seen corresponding path program 1 times
[2023-12-25 14:18:49,355 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:49,355 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685715710]
[2023-12-25 14:18:49,356 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:49,356 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:49,559 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:49,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269086504]
[2023-12-25 14:18:49,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:49,560 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:49,560 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:49,561 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 14:18:49,563 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 14:18:52,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:52,544 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14710 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:52,577 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:53,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 138 proven. 384 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:53,586 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:53,629 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked.
[2023-12-25 14:18:53,629 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:53,629 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685715710]
[2023-12-25 14:18:53,629 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:53,629 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269086504]
[2023-12-25 14:18:53,629 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [269086504] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:53,629 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:53,630 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:53,630 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289905157]
[2023-12-25 14:18:53,630 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:53,632 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:53,632 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:53,634 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:53,634 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:53,634 INFO  L87              Difference]: Start difference. First operand 5026 states and 8317 transitions. Second operand  has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:53,870 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:53,871 INFO  L93              Difference]: Finished difference Result 13261 states and 21927 transitions.
[2023-12-25 14:18:53,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:53,871 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3406
[2023-12-25 14:18:53,873 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:53,878 INFO  L225             Difference]: With dead ends: 13261
[2023-12-25 14:18:53,878 INFO  L226             Difference]: Without dead ends: 9024
[2023-12-25 14:18:53,880 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6811 GetRequests, 6801 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:53,880 INFO  L413           NwaCegarLoop]: 8022 mSDtfsCounter, 6592 mSDsluCounter, 15086 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6592 SdHoareTripleChecker+Valid, 23108 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 14:18:53,880 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6592 Valid, 23108 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:53,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9024 states.
[2023-12-25 14:18:53,917 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9024 to 5031.
[2023-12-25 14:18:53,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5031 states, 5030 states have (on average 1.6548707753479126) internal successors, (8324), 5030 states have internal predecessors, (8324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:53,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5031 states to 5031 states and 8324 transitions.
[2023-12-25 14:18:53,923 INFO  L78                 Accepts]: Start accepts. Automaton has 5031 states and 8324 transitions. Word has length 3406
[2023-12-25 14:18:53,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:53,924 INFO  L495      AbstractCegarLoop]: Abstraction has 5031 states and 8324 transitions.
[2023-12-25 14:18:53,925 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:53,925 INFO  L276                IsEmpty]: Start isEmpty. Operand 5031 states and 8324 transitions.
[2023-12-25 14:18:53,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3408
[2023-12-25 14:18:53,984 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:53,985 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 14:18:54,025 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 14:18:54,212 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,SelfDestructingSolverStorable52
[2023-12-25 14:18:54,212 INFO  L420      AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:54,213 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:54,213 INFO  L85        PathProgramCache]: Analyzing trace with hash -1664653319, now seen corresponding path program 1 times
[2023-12-25 14:18:54,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:54,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29617308]
[2023-12-25 14:18:54,214 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:54,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:54,407 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:54,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816393896]
[2023-12-25 14:18:54,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:54,407 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:54,408 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:54,408 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 14:18:54,422 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 14:18:57,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:18:57,666 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14713 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:18:57,701 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:18:58,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 142 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:18:58,482 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:18:58,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked.
[2023-12-25 14:18:58,525 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:18:58,526 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29617308]
[2023-12-25 14:18:58,526 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:18:58,526 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816393896]
[2023-12-25 14:18:58,526 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816393896] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:18:58,526 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:18:58,526 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:18:58,526 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135264323]
[2023-12-25 14:18:58,526 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:18:58,528 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:18:58,528 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:18:58,530 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:18:58,530 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:18:58,530 INFO  L87              Difference]: Start difference. First operand 5031 states and 8324 transitions. Second operand  has 4 states, 4 states have (on average 758.25) internal successors, (3033), 4 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:58,643 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:18:58,643 INFO  L93              Difference]: Finished difference Result 13276 states and 21948 transitions.
[2023-12-25 14:18:58,644 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:18:58,644 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 758.25) internal successors, (3033), 4 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3407
[2023-12-25 14:18:58,646 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:18:58,653 INFO  L225             Difference]: With dead ends: 13276
[2023-12-25 14:18:58,653 INFO  L226             Difference]: Without dead ends: 9028
[2023-12-25 14:18:58,656 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6813 GetRequests, 6803 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:18:58,657 INFO  L413           NwaCegarLoop]: 8012 mSDtfsCounter, 6589 mSDsluCounter, 15076 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6589 SdHoareTripleChecker+Valid, 23088 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 14:18:58,657 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6589 Valid, 23088 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:18:58,661 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9028 states.
[2023-12-25 14:18:58,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9028 to 5036.
[2023-12-25 14:18:58,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5036 states, 5035 states have (on average 1.654617676266137) internal successors, (8331), 5035 states have internal predecessors, (8331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:58,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 8331 transitions.
[2023-12-25 14:18:58,703 INFO  L78                 Accepts]: Start accepts. Automaton has 5036 states and 8331 transitions. Word has length 3407
[2023-12-25 14:18:58,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:18:58,704 INFO  L495      AbstractCegarLoop]: Abstraction has 5036 states and 8331 transitions.
[2023-12-25 14:18:58,705 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 758.25) internal successors, (3033), 4 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:18:58,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 5036 states and 8331 transitions.
[2023-12-25 14:18:58,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3409
[2023-12-25 14:18:58,764 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:18:58,765 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 14:18:58,803 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 14:18:58,980 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:58,980 INFO  L420      AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:18:58,981 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:18:58,981 INFO  L85        PathProgramCache]: Analyzing trace with hash -1062622657, now seen corresponding path program 1 times
[2023-12-25 14:18:58,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:18:58,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282286420]
[2023-12-25 14:18:58,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:58,982 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:18:59,184 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:18:59,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639211607]
[2023-12-25 14:18:59,185 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:18:59,185 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:18:59,185 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:18:59,186 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 14:18:59,190 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 14:19:02,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:02,284 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14716 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:02,318 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:03,170 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 146 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:03,170 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:03,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2023-12-25 14:19:03,213 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:03,213 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282286420]
[2023-12-25 14:19:03,213 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:03,213 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639211607]
[2023-12-25 14:19:03,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639211607] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:03,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:03,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:03,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121910695]
[2023-12-25 14:19:03,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:03,215 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:03,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:03,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:03,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:03,217 INFO  L87              Difference]: Start difference. First operand 5036 states and 8331 transitions. Second operand  has 4 states, 4 states have (on average 759.5) internal successors, (3038), 4 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:03,433 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:03,434 INFO  L93              Difference]: Finished difference Result 13291 states and 21969 transitions.
[2023-12-25 14:19:03,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:03,435 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 759.5) internal successors, (3038), 4 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3408
[2023-12-25 14:19:03,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:03,441 INFO  L225             Difference]: With dead ends: 13291
[2023-12-25 14:19:03,441 INFO  L226             Difference]: Without dead ends: 9032
[2023-12-25 14:19:03,444 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6815 GetRequests, 6805 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:03,444 INFO  L413           NwaCegarLoop]: 8002 mSDtfsCounter, 6586 mSDsluCounter, 15066 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6586 SdHoareTripleChecker+Valid, 23068 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 14:19:03,444 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6586 Valid, 23068 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:03,448 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9032 states.
[2023-12-25 14:19:03,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9032 to 5041.
[2023-12-25 14:19:03,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5041 states, 5040 states have (on average 1.6543650793650793) internal successors, (8338), 5040 states have internal predecessors, (8338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:03,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 8338 transitions.
[2023-12-25 14:19:03,487 INFO  L78                 Accepts]: Start accepts. Automaton has 5041 states and 8338 transitions. Word has length 3408
[2023-12-25 14:19:03,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:03,489 INFO  L495      AbstractCegarLoop]: Abstraction has 5041 states and 8338 transitions.
[2023-12-25 14:19:03,489 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 759.5) internal successors, (3038), 4 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:03,489 INFO  L276                IsEmpty]: Start isEmpty. Operand 5041 states and 8338 transitions.
[2023-12-25 14:19:03,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3410
[2023-12-25 14:19:03,549 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:03,550 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 14:19:03,591 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 14:19:03,776 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,SelfDestructingSolverStorable54
[2023-12-25 14:19:03,776 INFO  L420      AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:03,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:03,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -1640830331, now seen corresponding path program 1 times
[2023-12-25 14:19:03,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:03,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793966699]
[2023-12-25 14:19:03,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:03,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:03,977 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:03,977 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780186659]
[2023-12-25 14:19:03,978 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:03,978 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:03,978 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:03,979 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 14:19:04,005 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 14:19:06,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:07,068 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14719 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:07,101 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:07,903 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 150 proven. 372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:07,903 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:07,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2023-12-25 14:19:07,961 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:07,961 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793966699]
[2023-12-25 14:19:07,962 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:07,962 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780186659]
[2023-12-25 14:19:07,962 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [780186659] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:07,962 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:07,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:07,963 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751410498]
[2023-12-25 14:19:07,963 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:07,965 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:07,965 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:07,966 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:07,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:07,967 INFO  L87              Difference]: Start difference. First operand 5041 states and 8338 transitions. Second operand  has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:08,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:08,099 INFO  L93              Difference]: Finished difference Result 13306 states and 21990 transitions.
[2023-12-25 14:19:08,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:08,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3409
[2023-12-25 14:19:08,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:08,109 INFO  L225             Difference]: With dead ends: 13306
[2023-12-25 14:19:08,109 INFO  L226             Difference]: Without dead ends: 9036
[2023-12-25 14:19:08,114 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6817 GetRequests, 6807 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:08,114 INFO  L413           NwaCegarLoop]: 7992 mSDtfsCounter, 6583 mSDsluCounter, 15056 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6583 SdHoareTripleChecker+Valid, 23048 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 14:19:08,115 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6583 Valid, 23048 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:08,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9036 states.
[2023-12-25 14:19:08,164 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9036 to 5046.
[2023-12-25 14:19:08,167 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5046 states, 5045 states have (on average 1.6541129831516352) internal successors, (8345), 5045 states have internal predecessors, (8345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:08,172 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 8345 transitions.
[2023-12-25 14:19:08,172 INFO  L78                 Accepts]: Start accepts. Automaton has 5046 states and 8345 transitions. Word has length 3409
[2023-12-25 14:19:08,173 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:08,173 INFO  L495      AbstractCegarLoop]: Abstraction has 5046 states and 8345 transitions.
[2023-12-25 14:19:08,174 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:08,174 INFO  L276                IsEmpty]: Start isEmpty. Operand 5046 states and 8345 transitions.
[2023-12-25 14:19:08,235 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3411
[2023-12-25 14:19:08,236 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:08,237 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 14:19:08,282 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 14:19:08,452 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,SelfDestructingSolverStorable55
[2023-12-25 14:19:08,453 INFO  L420      AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:08,453 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:08,453 INFO  L85        PathProgramCache]: Analyzing trace with hash 1256634547, now seen corresponding path program 1 times
[2023-12-25 14:19:08,453 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:08,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022533443]
[2023-12-25 14:19:08,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:08,454 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:08,646 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:08,647 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579056144]
[2023-12-25 14:19:08,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:08,647 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:08,648 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:08,648 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 14:19:08,649 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 14:19:11,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:11,705 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14722 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:11,739 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:12,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 154 proven. 368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:12,649 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:12,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-12-25 14:19:12,696 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:12,696 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022533443]
[2023-12-25 14:19:12,696 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:12,696 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579056144]
[2023-12-25 14:19:12,696 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [579056144] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:12,696 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:12,697 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:12,697 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779869099]
[2023-12-25 14:19:12,697 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:12,699 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:12,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:12,703 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:12,703 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:12,703 INFO  L87              Difference]: Start difference. First operand 5046 states and 8345 transitions. Second operand  has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:12,942 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:12,942 INFO  L93              Difference]: Finished difference Result 13321 states and 22011 transitions.
[2023-12-25 14:19:12,942 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:12,943 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3410
[2023-12-25 14:19:12,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:12,951 INFO  L225             Difference]: With dead ends: 13321
[2023-12-25 14:19:12,951 INFO  L226             Difference]: Without dead ends: 9040
[2023-12-25 14:19:12,955 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6819 GetRequests, 6809 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:12,955 INFO  L413           NwaCegarLoop]: 7982 mSDtfsCounter, 6580 mSDsluCounter, 15046 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 23028 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 14:19:12,955 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6580 Valid, 23028 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:12,961 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9040 states.
[2023-12-25 14:19:13,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9040 to 5051.
[2023-12-25 14:19:13,012 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5051 states, 5050 states have (on average 1.6538613861386138) internal successors, (8352), 5050 states have internal predecessors, (8352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:13,016 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 8352 transitions.
[2023-12-25 14:19:13,016 INFO  L78                 Accepts]: Start accepts. Automaton has 5051 states and 8352 transitions. Word has length 3410
[2023-12-25 14:19:13,018 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:13,018 INFO  L495      AbstractCegarLoop]: Abstraction has 5051 states and 8352 transitions.
[2023-12-25 14:19:13,018 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:13,018 INFO  L276                IsEmpty]: Start isEmpty. Operand 5051 states and 8352 transitions.
[2023-12-25 14:19:13,080 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3412
[2023-12-25 14:19:13,080 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:13,081 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 14:19:13,126 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2023-12-25 14:19:13,296 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,SelfDestructingSolverStorable56
[2023-12-25 14:19:13,296 INFO  L420      AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:13,297 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:13,297 INFO  L85        PathProgramCache]: Analyzing trace with hash 2082151185, now seen corresponding path program 1 times
[2023-12-25 14:19:13,297 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:13,297 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938557617]
[2023-12-25 14:19:13,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:13,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:13,501 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:13,501 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516064784]
[2023-12-25 14:19:13,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:13,502 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:13,502 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:13,503 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 14:19:13,525 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 14:19:16,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:16,753 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14725 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:16,790 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:17,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 158 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:17,756 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:17,800 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked.
[2023-12-25 14:19:17,800 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:17,800 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938557617]
[2023-12-25 14:19:17,800 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:17,800 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516064784]
[2023-12-25 14:19:17,800 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [516064784] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:17,800 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:17,801 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:17,801 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624505526]
[2023-12-25 14:19:17,801 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:17,802 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:17,802 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:17,804 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:17,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:17,805 INFO  L87              Difference]: Start difference. First operand 5051 states and 8352 transitions. Second operand  has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:17,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:17,926 INFO  L93              Difference]: Finished difference Result 13333 states and 22027 transitions.
[2023-12-25 14:19:17,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:17,927 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3411
[2023-12-25 14:19:17,929 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:17,936 INFO  L225             Difference]: With dead ends: 13333
[2023-12-25 14:19:17,936 INFO  L226             Difference]: Without dead ends: 9041
[2023-12-25 14:19:17,940 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6821 GetRequests, 6811 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:17,941 INFO  L413           NwaCegarLoop]: 7977 mSDtfsCounter, 6579 mSDsluCounter, 15041 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6579 SdHoareTripleChecker+Valid, 23018 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 14:19:17,941 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6579 Valid, 23018 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:17,947 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9041 states.
[2023-12-25 14:19:17,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 5053.
[2023-12-25 14:19:17,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5053 states, 5052 states have (on average 1.6536025336500395) internal successors, (8354), 5052 states have internal predecessors, (8354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:17,993 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 8354 transitions.
[2023-12-25 14:19:17,993 INFO  L78                 Accepts]: Start accepts. Automaton has 5053 states and 8354 transitions. Word has length 3411
[2023-12-25 14:19:17,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:17,995 INFO  L495      AbstractCegarLoop]: Abstraction has 5053 states and 8354 transitions.
[2023-12-25 14:19:17,995 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:17,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 5053 states and 8354 transitions.
[2023-12-25 14:19:18,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3413
[2023-12-25 14:19:18,055 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:18,056 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 14:19:18,096 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2023-12-25 14:19:18,282 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,SelfDestructingSolverStorable57
[2023-12-25 14:19:18,283 INFO  L420      AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:18,283 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:18,284 INFO  L85        PathProgramCache]: Analyzing trace with hash -1827193331, now seen corresponding path program 1 times
[2023-12-25 14:19:18,284 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:18,284 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272268777]
[2023-12-25 14:19:18,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:18,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:18,484 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:18,484 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357220513]
[2023-12-25 14:19:18,485 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:18,485 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:18,485 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:18,487 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 14:19:18,487 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 14:19:21,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:21,682 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14728 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:21,718 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:22,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 160 proven. 362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:22,476 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:22,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked.
[2023-12-25 14:19:22,516 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:22,516 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272268777]
[2023-12-25 14:19:22,516 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:22,516 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357220513]
[2023-12-25 14:19:22,516 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357220513] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:22,516 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:22,517 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:22,517 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362150533]
[2023-12-25 14:19:22,517 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:22,518 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:22,518 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:22,520 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:22,520 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:22,520 INFO  L87              Difference]: Start difference. First operand 5053 states and 8354 transitions. Second operand  has 4 states, 4 states have (on average 764.0) internal successors, (3056), 4 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:22,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:22,746 INFO  L93              Difference]: Finished difference Result 13342 states and 22038 transitions.
[2023-12-25 14:19:22,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:22,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 764.0) internal successors, (3056), 4 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3412
[2023-12-25 14:19:22,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:22,754 INFO  L225             Difference]: With dead ends: 13342
[2023-12-25 14:19:22,754 INFO  L226             Difference]: Without dead ends: 9045
[2023-12-25 14:19:22,757 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6823 GetRequests, 6813 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:22,757 INFO  L413           NwaCegarLoop]: 7967 mSDtfsCounter, 6574 mSDsluCounter, 15031 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6574 SdHoareTripleChecker+Valid, 22998 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 14:19:22,758 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6574 Valid, 22998 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:22,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9045 states.
[2023-12-25 14:19:22,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9045 to 5058.
[2023-12-25 14:19:22,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5058 states, 5057 states have (on average 1.6533517895985763) internal successors, (8361), 5057 states have internal predecessors, (8361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:22,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5058 states to 5058 states and 8361 transitions.
[2023-12-25 14:19:22,804 INFO  L78                 Accepts]: Start accepts. Automaton has 5058 states and 8361 transitions. Word has length 3412
[2023-12-25 14:19:22,805 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:22,805 INFO  L495      AbstractCegarLoop]: Abstraction has 5058 states and 8361 transitions.
[2023-12-25 14:19:22,806 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 764.0) internal successors, (3056), 4 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:22,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 5058 states and 8361 transitions.
[2023-12-25 14:19:22,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3414
[2023-12-25 14:19:22,880 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:22,881 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 14:19:22,918 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 14:19:23,096 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:23,096 INFO  L420      AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:23,097 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:23,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 1809506459, now seen corresponding path program 1 times
[2023-12-25 14:19:23,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:23,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965501247]
[2023-12-25 14:19:23,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:23,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:23,293 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:23,293 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371903119]
[2023-12-25 14:19:23,293 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:23,293 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:23,294 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:23,294 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 14:19:23,295 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 14:19:26,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:26,390 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14732 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:26,424 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:27,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 164 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:27,020 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:27,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked.
[2023-12-25 14:19:27,061 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:27,062 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965501247]
[2023-12-25 14:19:27,062 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:27,062 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371903119]
[2023-12-25 14:19:27,062 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371903119] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:27,062 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:27,062 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:27,062 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234786297]
[2023-12-25 14:19:27,062 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:27,064 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:27,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:27,066 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:27,066 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:27,066 INFO  L87              Difference]: Start difference. First operand 5058 states and 8361 transitions. Second operand  has 4 states, 4 states have (on average 765.25) internal successors, (3061), 4 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:27,181 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:27,181 INFO  L93              Difference]: Finished difference Result 13357 states and 22059 transitions.
[2023-12-25 14:19:27,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:27,182 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 765.25) internal successors, (3061), 4 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3413
[2023-12-25 14:19:27,183 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:27,190 INFO  L225             Difference]: With dead ends: 13357
[2023-12-25 14:19:27,190 INFO  L226             Difference]: Without dead ends: 9049
[2023-12-25 14:19:27,194 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6825 GetRequests, 6815 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:27,194 INFO  L413           NwaCegarLoop]: 7957 mSDtfsCounter, 6571 mSDsluCounter, 15021 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6571 SdHoareTripleChecker+Valid, 22978 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 14:19:27,194 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6571 Valid, 22978 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:27,199 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9049 states.
[2023-12-25 14:19:27,238 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9049 to 5063.
[2023-12-25 14:19:27,242 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5063 states, 5062 states have (on average 1.6531015408929277) internal successors, (8368), 5062 states have internal predecessors, (8368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:27,245 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 8368 transitions.
[2023-12-25 14:19:27,245 INFO  L78                 Accepts]: Start accepts. Automaton has 5063 states and 8368 transitions. Word has length 3413
[2023-12-25 14:19:27,247 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:27,247 INFO  L495      AbstractCegarLoop]: Abstraction has 5063 states and 8368 transitions.
[2023-12-25 14:19:27,247 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 765.25) internal successors, (3061), 4 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:27,247 INFO  L276                IsEmpty]: Start isEmpty. Operand 5063 states and 8368 transitions.
[2023-12-25 14:19:27,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3415
[2023-12-25 14:19:27,309 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:27,310 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 14:19:27,353 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2023-12-25 14:19:27,530 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59
[2023-12-25 14:19:27,531 INFO  L420      AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:27,531 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:27,531 INFO  L85        PathProgramCache]: Analyzing trace with hash -1986809857, now seen corresponding path program 1 times
[2023-12-25 14:19:27,532 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:27,532 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647764479]
[2023-12-25 14:19:27,532 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:27,532 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:27,729 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:27,729 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752265212]
[2023-12-25 14:19:27,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:27,730 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:27,730 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:27,731 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 14:19:27,734 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 14:19:30,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:30,907 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14735 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:30,941 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:31,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 168 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:31,607 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:31,833 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked.
[2023-12-25 14:19:31,833 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:31,833 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647764479]
[2023-12-25 14:19:31,833 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:31,833 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752265212]
[2023-12-25 14:19:31,833 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752265212] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:31,833 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:31,834 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:31,834 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34745399]
[2023-12-25 14:19:31,834 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:31,836 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:31,836 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:31,837 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:31,837 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:31,837 INFO  L87              Difference]: Start difference. First operand 5063 states and 8368 transitions. Second operand  has 4 states, 4 states have (on average 766.5) internal successors, (3066), 4 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:31,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:31,954 INFO  L93              Difference]: Finished difference Result 13372 states and 22080 transitions.
[2023-12-25 14:19:31,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:31,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 766.5) internal successors, (3066), 4 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3414
[2023-12-25 14:19:31,956 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:31,962 INFO  L225             Difference]: With dead ends: 13372
[2023-12-25 14:19:31,963 INFO  L226             Difference]: Without dead ends: 9053
[2023-12-25 14:19:31,966 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6827 GetRequests, 6817 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:31,966 INFO  L413           NwaCegarLoop]: 7947 mSDtfsCounter, 6568 mSDsluCounter, 15011 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6568 SdHoareTripleChecker+Valid, 22958 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 14:19:31,966 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6568 Valid, 22958 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:31,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9053 states.
[2023-12-25 14:19:32,007 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9053 to 5068.
[2023-12-25 14:19:32,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5068 states, 5067 states have (on average 1.6528517860667062) internal successors, (8375), 5067 states have internal predecessors, (8375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:32,013 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 8375 transitions.
[2023-12-25 14:19:32,015 INFO  L78                 Accepts]: Start accepts. Automaton has 5068 states and 8375 transitions. Word has length 3414
[2023-12-25 14:19:32,016 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:32,016 INFO  L495      AbstractCegarLoop]: Abstraction has 5068 states and 8375 transitions.
[2023-12-25 14:19:32,017 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 766.5) internal successors, (3066), 4 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:32,017 INFO  L276                IsEmpty]: Start isEmpty. Operand 5068 states and 8375 transitions.
[2023-12-25 14:19:32,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3416
[2023-12-25 14:19:32,076 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:32,076 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 14:19:32,113 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 14:19:32,288 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:32,289 INFO  L420      AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:32,289 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:32,289 INFO  L85        PathProgramCache]: Analyzing trace with hash 1436004005, now seen corresponding path program 1 times
[2023-12-25 14:19:32,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:32,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688387622]
[2023-12-25 14:19:32,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:32,290 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:32,484 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:32,485 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847738200]
[2023-12-25 14:19:32,485 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:32,485 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:32,485 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:32,486 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 14:19:32,487 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 14:19:35,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:35,489 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14739 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:35,525 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:36,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 172 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:36,463 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:36,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked.
[2023-12-25 14:19:36,513 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:36,514 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688387622]
[2023-12-25 14:19:36,514 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:36,514 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847738200]
[2023-12-25 14:19:36,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [847738200] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:36,514 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:36,514 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:36,514 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675822499]
[2023-12-25 14:19:36,514 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:36,516 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:36,516 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:36,517 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:36,517 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:36,518 INFO  L87              Difference]: Start difference. First operand 5068 states and 8375 transitions. Second operand  has 4 states, 4 states have (on average 767.75) internal successors, (3071), 4 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:36,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:36,632 INFO  L93              Difference]: Finished difference Result 13387 states and 22101 transitions.
[2023-12-25 14:19:36,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:36,633 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 767.75) internal successors, (3071), 4 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3415
[2023-12-25 14:19:36,635 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:36,642 INFO  L225             Difference]: With dead ends: 13387
[2023-12-25 14:19:36,642 INFO  L226             Difference]: Without dead ends: 9057
[2023-12-25 14:19:36,647 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6829 GetRequests, 6819 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:36,647 INFO  L413           NwaCegarLoop]: 7937 mSDtfsCounter, 6565 mSDsluCounter, 15001 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6565 SdHoareTripleChecker+Valid, 22938 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 14:19:36,647 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6565 Valid, 22938 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:36,653 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9057 states.
[2023-12-25 14:19:36,694 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9057 to 5073.
[2023-12-25 14:19:36,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5073 states, 5072 states have (on average 1.652602523659306) internal successors, (8382), 5072 states have internal predecessors, (8382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:36,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5073 states to 5073 states and 8382 transitions.
[2023-12-25 14:19:36,703 INFO  L78                 Accepts]: Start accepts. Automaton has 5073 states and 8382 transitions. Word has length 3415
[2023-12-25 14:19:36,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:36,704 INFO  L495      AbstractCegarLoop]: Abstraction has 5073 states and 8382 transitions.
[2023-12-25 14:19:36,705 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 767.75) internal successors, (3071), 4 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:36,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 5073 states and 8382 transitions.
[2023-12-25 14:19:36,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3417
[2023-12-25 14:19:36,765 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:36,766 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 14:19:36,804 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2023-12-25 14:19:36,992 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:36,992 INFO  L420      AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:36,993 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:36,993 INFO  L85        PathProgramCache]: Analyzing trace with hash -1457615247, now seen corresponding path program 1 times
[2023-12-25 14:19:36,993 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:36,993 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069865490]
[2023-12-25 14:19:36,993 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:36,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:37,202 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:37,203 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836948014]
[2023-12-25 14:19:37,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:37,203 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:37,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:37,204 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 14:19:37,206 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 14:19:40,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:40,490 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14742 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:40,519 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:41,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 176 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:41,441 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:41,494 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked.
[2023-12-25 14:19:41,494 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:41,494 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069865490]
[2023-12-25 14:19:41,494 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:41,494 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836948014]
[2023-12-25 14:19:41,494 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836948014] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:41,494 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:41,495 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:41,495 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587515262]
[2023-12-25 14:19:41,495 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:41,496 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:41,496 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:41,498 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:41,498 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:41,498 INFO  L87              Difference]: Start difference. First operand 5073 states and 8382 transitions. Second operand  has 4 states, 4 states have (on average 769.0) internal successors, (3076), 4 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:41,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:41,611 INFO  L93              Difference]: Finished difference Result 13402 states and 22122 transitions.
[2023-12-25 14:19:41,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:41,612 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 769.0) internal successors, (3076), 4 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3416
[2023-12-25 14:19:41,614 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:41,620 INFO  L225             Difference]: With dead ends: 13402
[2023-12-25 14:19:41,620 INFO  L226             Difference]: Without dead ends: 9061
[2023-12-25 14:19:41,623 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6831 GetRequests, 6821 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:41,624 INFO  L413           NwaCegarLoop]: 7927 mSDtfsCounter, 6562 mSDsluCounter, 14991 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6562 SdHoareTripleChecker+Valid, 22918 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 14:19:41,624 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6562 Valid, 22918 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:41,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9061 states.
[2023-12-25 14:19:41,663 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9061 to 5078.
[2023-12-25 14:19:41,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5078 states, 5077 states have (on average 1.6523537522158755) internal successors, (8389), 5077 states have internal predecessors, (8389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:41,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8389 transitions.
[2023-12-25 14:19:41,670 INFO  L78                 Accepts]: Start accepts. Automaton has 5078 states and 8389 transitions. Word has length 3416
[2023-12-25 14:19:41,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:41,671 INFO  L495      AbstractCegarLoop]: Abstraction has 5078 states and 8389 transitions.
[2023-12-25 14:19:41,672 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 769.0) internal successors, (3076), 4 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:41,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 5078 states and 8389 transitions.
[2023-12-25 14:19:41,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3418
[2023-12-25 14:19:41,731 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:41,732 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 14:19:41,770 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 14:19:41,936 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:41,936 INFO  L420      AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:41,937 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:41,937 INFO  L85        PathProgramCache]: Analyzing trace with hash -621173457, now seen corresponding path program 1 times
[2023-12-25 14:19:41,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:41,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114339326]
[2023-12-25 14:19:41,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:41,938 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:42,309 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:42,309 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698770397]
[2023-12-25 14:19:42,309 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:42,309 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:42,310 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:42,310 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 14:19:42,314 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 14:19:45,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:45,373 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14746 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:45,400 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:46,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 180 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:46,308 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:46,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2023-12-25 14:19:46,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:46,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114339326]
[2023-12-25 14:19:46,351 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:46,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698770397]
[2023-12-25 14:19:46,351 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [698770397] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:46,351 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:46,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:46,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485747691]
[2023-12-25 14:19:46,352 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:46,354 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:46,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:46,358 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:46,358 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:46,359 INFO  L87              Difference]: Start difference. First operand 5078 states and 8389 transitions. Second operand  has 4 states, 4 states have (on average 770.25) internal successors, (3081), 4 states have internal predecessors, (3081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:46,474 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:46,474 INFO  L93              Difference]: Finished difference Result 13417 states and 22143 transitions.
[2023-12-25 14:19:46,474 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:46,476 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 770.25) internal successors, (3081), 4 states have internal predecessors, (3081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3417
[2023-12-25 14:19:46,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:46,484 INFO  L225             Difference]: With dead ends: 13417
[2023-12-25 14:19:46,484 INFO  L226             Difference]: Without dead ends: 9065
[2023-12-25 14:19:46,487 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6833 GetRequests, 6823 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:46,490 INFO  L413           NwaCegarLoop]: 7917 mSDtfsCounter, 6559 mSDsluCounter, 14981 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6559 SdHoareTripleChecker+Valid, 22898 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 14:19:46,497 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6559 Valid, 22898 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:46,503 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9065 states.
[2023-12-25 14:19:46,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 5083.
[2023-12-25 14:19:46,543 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5083 states, 5082 states have (on average 1.6521054702872884) internal successors, (8396), 5082 states have internal predecessors, (8396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:46,547 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 8396 transitions.
[2023-12-25 14:19:46,548 INFO  L78                 Accepts]: Start accepts. Automaton has 5083 states and 8396 transitions. Word has length 3417
[2023-12-25 14:19:46,549 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:46,549 INFO  L495      AbstractCegarLoop]: Abstraction has 5083 states and 8396 transitions.
[2023-12-25 14:19:46,550 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 770.25) internal successors, (3081), 4 states have internal predecessors, (3081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:46,550 INFO  L276                IsEmpty]: Start isEmpty. Operand 5083 states and 8396 transitions.
[2023-12-25 14:19:46,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3419
[2023-12-25 14:19:46,610 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:46,611 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 14:19:46,658 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2023-12-25 14:19:46,812 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:46,812 INFO  L420      AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:46,812 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:46,813 INFO  L85        PathProgramCache]: Analyzing trace with hash 52001123, now seen corresponding path program 1 times
[2023-12-25 14:19:46,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:46,813 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021767892]
[2023-12-25 14:19:46,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:46,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:47,005 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:47,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048466674]
[2023-12-25 14:19:47,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:47,006 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:47,007 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:47,007 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 14:19:47,008 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 14:19:50,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:50,147 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14749 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:50,180 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:51,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 184 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:51,244 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:51,286 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked.
[2023-12-25 14:19:51,287 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:51,287 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021767892]
[2023-12-25 14:19:51,287 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:51,287 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048466674]
[2023-12-25 14:19:51,287 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048466674] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:51,287 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:51,287 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:51,287 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672252617]
[2023-12-25 14:19:51,288 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:51,289 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:51,289 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:51,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:51,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:51,291 INFO  L87              Difference]: Start difference. First operand 5083 states and 8396 transitions. Second operand  has 4 states, 4 states have (on average 771.5) internal successors, (3086), 4 states have internal predecessors, (3086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:51,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:51,409 INFO  L93              Difference]: Finished difference Result 13432 states and 22164 transitions.
[2023-12-25 14:19:51,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:51,410 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 771.5) internal successors, (3086), 4 states have internal predecessors, (3086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3418
[2023-12-25 14:19:51,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:51,419 INFO  L225             Difference]: With dead ends: 13432
[2023-12-25 14:19:51,419 INFO  L226             Difference]: Without dead ends: 9069
[2023-12-25 14:19:51,422 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6835 GetRequests, 6825 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:51,422 INFO  L413           NwaCegarLoop]: 7907 mSDtfsCounter, 6556 mSDsluCounter, 14971 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6556 SdHoareTripleChecker+Valid, 22878 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 14:19:51,422 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6556 Valid, 22878 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:51,427 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9069 states.
[2023-12-25 14:19:51,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9069 to 5088.
[2023-12-25 14:19:51,468 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5088 states, 5087 states have (on average 1.651857676430116) internal successors, (8403), 5087 states have internal predecessors, (8403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:51,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5088 states to 5088 states and 8403 transitions.
[2023-12-25 14:19:51,471 INFO  L78                 Accepts]: Start accepts. Automaton has 5088 states and 8403 transitions. Word has length 3418
[2023-12-25 14:19:51,472 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:51,472 INFO  L495      AbstractCegarLoop]: Abstraction has 5088 states and 8403 transitions.
[2023-12-25 14:19:51,473 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 771.5) internal successors, (3086), 4 states have internal predecessors, (3086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:51,473 INFO  L276                IsEmpty]: Start isEmpty. Operand 5088 states and 8403 transitions.
[2023-12-25 14:19:51,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3420
[2023-12-25 14:19:51,533 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:51,533 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 14:19:51,571 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 14:19:51,743 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,SelfDestructingSolverStorable64
[2023-12-25 14:19:51,744 INFO  L420      AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:51,744 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:51,746 INFO  L85        PathProgramCache]: Analyzing trace with hash -1496259527, now seen corresponding path program 1 times
[2023-12-25 14:19:51,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:51,747 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289804911]
[2023-12-25 14:19:51,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:51,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:52,044 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:52,044 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777474203]
[2023-12-25 14:19:52,044 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:52,045 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:52,045 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:52,046 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 14:19:52,072 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 14:19:54,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:55,063 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14753 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:55,092 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:19:55,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 188 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:19:55,938 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:19:55,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2023-12-25 14:19:55,990 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:19:55,990 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289804911]
[2023-12-25 14:19:55,990 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:19:55,990 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777474203]
[2023-12-25 14:19:55,990 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [777474203] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:19:55,990 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:19:55,991 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:19:55,991 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16780120]
[2023-12-25 14:19:55,991 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:19:55,993 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:19:55,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:19:55,994 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:19:55,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:19:55,995 INFO  L87              Difference]: Start difference. First operand 5088 states and 8403 transitions. Second operand  has 4 states, 4 states have (on average 772.75) internal successors, (3091), 4 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:56,135 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:19:56,135 INFO  L93              Difference]: Finished difference Result 13447 states and 22185 transitions.
[2023-12-25 14:19:56,139 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:19:56,140 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 772.75) internal successors, (3091), 4 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3419
[2023-12-25 14:19:56,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:19:56,149 INFO  L225             Difference]: With dead ends: 13447
[2023-12-25 14:19:56,149 INFO  L226             Difference]: Without dead ends: 9073
[2023-12-25 14:19:56,153 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6837 GetRequests, 6827 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:19:56,154 INFO  L413           NwaCegarLoop]: 7897 mSDtfsCounter, 6553 mSDsluCounter, 14961 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6553 SdHoareTripleChecker+Valid, 22858 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 14:19:56,154 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6553 Valid, 22858 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:19:56,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9073 states.
[2023-12-25 14:19:56,197 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9073 to 5093.
[2023-12-25 14:19:56,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5093 states, 5092 states have (on average 1.6516103692065986) internal successors, (8410), 5092 states have internal predecessors, (8410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:56,205 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 8410 transitions.
[2023-12-25 14:19:56,205 INFO  L78                 Accepts]: Start accepts. Automaton has 5093 states and 8410 transitions. Word has length 3419
[2023-12-25 14:19:56,206 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:19:56,206 INFO  L495      AbstractCegarLoop]: Abstraction has 5093 states and 8410 transitions.
[2023-12-25 14:19:56,207 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 772.75) internal successors, (3091), 4 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:19:56,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 5093 states and 8410 transitions.
[2023-12-25 14:19:56,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3421
[2023-12-25 14:19:56,266 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:19:56,267 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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[2023-12-25 14:19:56,305 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 14:19:56,489 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,SelfDestructingSolverStorable65
[2023-12-25 14:19:56,489 INFO  L420      AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:19:56,490 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:19:56,490 INFO  L85        PathProgramCache]: Analyzing trace with hash 1217269973, now seen corresponding path program 1 times
[2023-12-25 14:19:56,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:19:56,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78466183]
[2023-12-25 14:19:56,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:56,490 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:19:56,691 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:19:56,691 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849063581]
[2023-12-25 14:19:56,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:19:56,692 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:19:56,692 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:19:56,693 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 14:19:56,694 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 14:19:59,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:19:59,623 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14756 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:19:59,650 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:00,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 192 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:00,483 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:00,523 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked.
[2023-12-25 14:20:00,524 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:00,524 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78466183]
[2023-12-25 14:20:00,524 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:00,524 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849063581]
[2023-12-25 14:20:00,524 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [849063581] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:00,524 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:00,524 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:00,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718967735]
[2023-12-25 14:20:00,525 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:00,538 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:00,538 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:00,540 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:00,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:00,540 INFO  L87              Difference]: Start difference. First operand 5093 states and 8410 transitions. Second operand  has 4 states, 4 states have (on average 774.0) internal successors, (3096), 4 states have internal predecessors, (3096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:00,752 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:00,752 INFO  L93              Difference]: Finished difference Result 13462 states and 22206 transitions.
[2023-12-25 14:20:00,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:00,754 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 774.0) internal successors, (3096), 4 states have internal predecessors, (3096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3420
[2023-12-25 14:20:00,755 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:00,761 INFO  L225             Difference]: With dead ends: 13462
[2023-12-25 14:20:00,761 INFO  L226             Difference]: Without dead ends: 9077
[2023-12-25 14:20:00,765 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6839 GetRequests, 6829 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:00,766 INFO  L413           NwaCegarLoop]: 7887 mSDtfsCounter, 6550 mSDsluCounter, 14951 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6550 SdHoareTripleChecker+Valid, 22838 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 14:20:00,766 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6550 Valid, 22838 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:00,770 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9077 states.
[2023-12-25 14:20:00,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9077 to 5098.
[2023-12-25 14:20:00,809 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5098 states, 5097 states have (on average 1.6513635471846184) internal successors, (8417), 5097 states have internal predecessors, (8417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:00,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 8417 transitions.
[2023-12-25 14:20:00,813 INFO  L78                 Accepts]: Start accepts. Automaton has 5098 states and 8417 transitions. Word has length 3420
[2023-12-25 14:20:00,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:00,815 INFO  L495      AbstractCegarLoop]: Abstraction has 5098 states and 8417 transitions.
[2023-12-25 14:20:00,815 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 774.0) internal successors, (3096), 4 states have internal predecessors, (3096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:00,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 5098 states and 8417 transitions.
[2023-12-25 14:20:00,874 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3422
[2023-12-25 14:20:00,874 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:00,875 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 14:20:00,913 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0
[2023-12-25 14:20:01,084 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:01,085 INFO  L420      AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:01,085 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:01,085 INFO  L85        PathProgramCache]: Analyzing trace with hash 655723459, now seen corresponding path program 1 times
[2023-12-25 14:20:01,085 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:01,085 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384404780]
[2023-12-25 14:20:01,085 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:01,085 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:01,286 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:01,286 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579951303]
[2023-12-25 14:20:01,287 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:01,287 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:01,287 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:01,288 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 14:20:01,290 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 14:20:04,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:04,233 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14760 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:04,261 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:05,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 196 proven. 326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:05,155 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:05,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked.
[2023-12-25 14:20:05,194 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:05,195 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384404780]
[2023-12-25 14:20:05,195 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:05,195 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579951303]
[2023-12-25 14:20:05,195 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579951303] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:05,195 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:05,196 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:05,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894852870]
[2023-12-25 14:20:05,196 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:05,197 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:05,197 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:05,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:05,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:05,199 INFO  L87              Difference]: Start difference. First operand 5098 states and 8417 transitions. Second operand  has 4 states, 4 states have (on average 775.25) internal successors, (3101), 4 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:05,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:05,323 INFO  L93              Difference]: Finished difference Result 13477 states and 22227 transitions.
[2023-12-25 14:20:05,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:05,324 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 775.25) internal successors, (3101), 4 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3421
[2023-12-25 14:20:05,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:05,332 INFO  L225             Difference]: With dead ends: 13477
[2023-12-25 14:20:05,332 INFO  L226             Difference]: Without dead ends: 9081
[2023-12-25 14:20:05,336 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6841 GetRequests, 6831 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:05,336 INFO  L413           NwaCegarLoop]: 7877 mSDtfsCounter, 6547 mSDsluCounter, 14941 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6547 SdHoareTripleChecker+Valid, 22818 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 14:20:05,336 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6547 Valid, 22818 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:05,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9081 states.
[2023-12-25 14:20:05,378 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9081 to 5103.
[2023-12-25 14:20:05,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5103 states, 5102 states have (on average 1.6511172089376716) internal successors, (8424), 5102 states have internal predecessors, (8424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:05,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 8424 transitions.
[2023-12-25 14:20:05,387 INFO  L78                 Accepts]: Start accepts. Automaton has 5103 states and 8424 transitions. Word has length 3421
[2023-12-25 14:20:05,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:05,388 INFO  L495      AbstractCegarLoop]: Abstraction has 5103 states and 8424 transitions.
[2023-12-25 14:20:05,389 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 775.25) internal successors, (3101), 4 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:05,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 5103 states and 8424 transitions.
[2023-12-25 14:20:05,449 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3423
[2023-12-25 14:20:05,450 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:05,461 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 14:20:05,503 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 14:20:05,674 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:05,675 INFO  L420      AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:05,675 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:05,675 INFO  L85        PathProgramCache]: Analyzing trace with hash -869403449, now seen corresponding path program 1 times
[2023-12-25 14:20:05,676 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:05,676 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711939795]
[2023-12-25 14:20:05,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:05,676 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:05,876 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:05,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816398370]
[2023-12-25 14:20:05,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:05,877 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:05,877 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:05,878 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 14:20:05,881 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 14:20:08,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:08,956 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14763 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:08,986 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:10,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 200 proven. 322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:10,174 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:10,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2023-12-25 14:20:10,218 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:10,218 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711939795]
[2023-12-25 14:20:10,218 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:10,218 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816398370]
[2023-12-25 14:20:10,218 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [816398370] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:10,218 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:10,218 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:10,218 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072364190]
[2023-12-25 14:20:10,219 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:10,220 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:10,220 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:10,222 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:10,222 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:10,222 INFO  L87              Difference]: Start difference. First operand 5103 states and 8424 transitions. Second operand  has 4 states, 4 states have (on average 776.5) internal successors, (3106), 4 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:10,356 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:10,356 INFO  L93              Difference]: Finished difference Result 13492 states and 22248 transitions.
[2023-12-25 14:20:10,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:10,357 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 776.5) internal successors, (3106), 4 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3422
[2023-12-25 14:20:10,359 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:10,366 INFO  L225             Difference]: With dead ends: 13492
[2023-12-25 14:20:10,367 INFO  L226             Difference]: Without dead ends: 9085
[2023-12-25 14:20:10,372 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6843 GetRequests, 6833 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:10,372 INFO  L413           NwaCegarLoop]: 7867 mSDtfsCounter, 6544 mSDsluCounter, 14931 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6544 SdHoareTripleChecker+Valid, 22798 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 14:20:10,372 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6544 Valid, 22798 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:10,379 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9085 states.
[2023-12-25 14:20:10,430 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9085 to 5108.
[2023-12-25 14:20:10,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5108 states, 5107 states have (on average 1.6508713530448405) internal successors, (8431), 5107 states have internal predecessors, (8431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:10,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 8431 transitions.
[2023-12-25 14:20:10,440 INFO  L78                 Accepts]: Start accepts. Automaton has 5108 states and 8431 transitions. Word has length 3422
[2023-12-25 14:20:10,441 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:10,441 INFO  L495      AbstractCegarLoop]: Abstraction has 5108 states and 8431 transitions.
[2023-12-25 14:20:10,442 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 776.5) internal successors, (3106), 4 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:10,442 INFO  L276                IsEmpty]: Start isEmpty. Operand 5108 states and 8431 transitions.
[2023-12-25 14:20:10,516 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3424
[2023-12-25 14:20:10,517 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:10,518 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 14:20:10,559 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 14:20:10,724 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68
[2023-12-25 14:20:10,725 INFO  L420      AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:10,725 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:10,725 INFO  L85        PathProgramCache]: Analyzing trace with hash -957891635, now seen corresponding path program 1 times
[2023-12-25 14:20:10,726 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:10,726 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748332394]
[2023-12-25 14:20:10,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:10,726 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:10,962 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:10,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133824167]
[2023-12-25 14:20:10,963 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:10,963 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:10,963 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:10,964 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 14:20:10,967 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 14:20:14,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:14,107 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14767 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:14,133 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:15,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 204 proven. 318 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:15,078 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:15,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked.
[2023-12-25 14:20:15,117 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:15,117 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748332394]
[2023-12-25 14:20:15,118 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:15,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133824167]
[2023-12-25 14:20:15,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133824167] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:15,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:15,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:15,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486453589]
[2023-12-25 14:20:15,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:15,120 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:15,120 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:15,121 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:15,121 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:15,121 INFO  L87              Difference]: Start difference. First operand 5108 states and 8431 transitions. Second operand  has 4 states, 4 states have (on average 777.25) internal successors, (3109), 4 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:15,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:15,235 INFO  L93              Difference]: Finished difference Result 13504 states and 22264 transitions.
[2023-12-25 14:20:15,235 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:15,236 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 777.25) internal successors, (3109), 4 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3423
[2023-12-25 14:20:15,247 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:15,254 INFO  L225             Difference]: With dead ends: 13504
[2023-12-25 14:20:15,254 INFO  L226             Difference]: Without dead ends: 9086
[2023-12-25 14:20:15,270 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6845 GetRequests, 6835 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:15,271 INFO  L413           NwaCegarLoop]: 7862 mSDtfsCounter, 6543 mSDsluCounter, 14926 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 22788 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 14:20:15,271 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6543 Valid, 22788 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:15,277 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9086 states.
[2023-12-25 14:20:15,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9086 to 5110.
[2023-12-25 14:20:15,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5110 states, 5109 states have (on average 1.6506165590135056) internal successors, (8433), 5109 states have internal predecessors, (8433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:15,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5110 states to 5110 states and 8433 transitions.
[2023-12-25 14:20:15,339 INFO  L78                 Accepts]: Start accepts. Automaton has 5110 states and 8433 transitions. Word has length 3423
[2023-12-25 14:20:15,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:15,340 INFO  L495      AbstractCegarLoop]: Abstraction has 5110 states and 8433 transitions.
[2023-12-25 14:20:15,341 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 777.25) internal successors, (3109), 4 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:15,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 5110 states and 8433 transitions.
[2023-12-25 14:20:15,440 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3425
[2023-12-25 14:20:15,440 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:15,441 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 14:20:15,479 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0
[2023-12-25 14:20:15,654 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69
[2023-12-25 14:20:15,654 INFO  L420      AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:15,655 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:15,655 INFO  L85        PathProgramCache]: Analyzing trace with hash 892305055, now seen corresponding path program 1 times
[2023-12-25 14:20:15,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:15,655 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420101249]
[2023-12-25 14:20:15,655 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:15,655 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:15,857 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:15,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957947419]
[2023-12-25 14:20:15,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:15,860 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:15,860 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:15,861 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 14:20:15,866 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 14:20:18,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:18,830 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14770 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:18,856 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:19,646 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 206 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:19,647 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:19,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-25 14:20:19,688 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:19,689 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420101249]
[2023-12-25 14:20:19,689 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:19,689 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957947419]
[2023-12-25 14:20:19,689 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [957947419] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:19,689 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:19,689 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:19,689 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551783109]
[2023-12-25 14:20:19,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:19,694 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:19,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:19,713 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:19,713 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:19,714 INFO  L87              Difference]: Start difference. First operand 5110 states and 8433 transitions. Second operand  has 4 states, 4 states have (on average 778.5) internal successors, (3114), 4 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:19,899 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:19,899 INFO  L93              Difference]: Finished difference Result 13513 states and 22275 transitions.
[2023-12-25 14:20:19,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:19,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 778.5) internal successors, (3114), 4 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3424
[2023-12-25 14:20:19,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:19,908 INFO  L225             Difference]: With dead ends: 13513
[2023-12-25 14:20:19,908 INFO  L226             Difference]: Without dead ends: 9090
[2023-12-25 14:20:19,911 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6847 GetRequests, 6837 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:19,911 INFO  L413           NwaCegarLoop]: 7852 mSDtfsCounter, 6538 mSDsluCounter, 14916 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6538 SdHoareTripleChecker+Valid, 22768 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 14:20:19,911 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6538 Valid, 22768 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:19,916 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9090 states.
[2023-12-25 14:20:19,952 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9090 to 5115.
[2023-12-25 14:20:19,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5115 states, 5114 states have (on average 1.650371529135706) internal successors, (8440), 5114 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:19,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 8440 transitions.
[2023-12-25 14:20:19,959 INFO  L78                 Accepts]: Start accepts. Automaton has 5115 states and 8440 transitions. Word has length 3424
[2023-12-25 14:20:19,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:19,960 INFO  L495      AbstractCegarLoop]: Abstraction has 5115 states and 8440 transitions.
[2023-12-25 14:20:19,961 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 778.5) internal successors, (3114), 4 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:19,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 5115 states and 8440 transitions.
[2023-12-25 14:20:20,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3426
[2023-12-25 14:20:20,020 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:20,021 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 14:20:20,060 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 14:20:20,226 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:20,226 INFO  L420      AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:20,226 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:20,227 INFO  L85        PathProgramCache]: Analyzing trace with hash 2134547929, now seen corresponding path program 1 times
[2023-12-25 14:20:20,227 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:20,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874713885]
[2023-12-25 14:20:20,227 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:20,227 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:20,438 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:20,438 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11135297]
[2023-12-25 14:20:20,438 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:20,439 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:20,439 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:20,440 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 14:20:20,441 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 14:20:23,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:23,676 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14773 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:23,701 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:24,523 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 210 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:24,523 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:24,571 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked.
[2023-12-25 14:20:24,571 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:24,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874713885]
[2023-12-25 14:20:24,571 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:24,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11135297]
[2023-12-25 14:20:24,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [11135297] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:24,571 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:24,572 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:24,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729495606]
[2023-12-25 14:20:24,572 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:24,573 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:24,573 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:24,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:24,575 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:24,575 INFO  L87              Difference]: Start difference. First operand 5115 states and 8440 transitions. Second operand  has 4 states, 4 states have (on average 779.75) internal successors, (3119), 4 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:24,690 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:24,690 INFO  L93              Difference]: Finished difference Result 13528 states and 22296 transitions.
[2023-12-25 14:20:24,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:24,691 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 779.75) internal successors, (3119), 4 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3425
[2023-12-25 14:20:24,693 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:24,700 INFO  L225             Difference]: With dead ends: 13528
[2023-12-25 14:20:24,700 INFO  L226             Difference]: Without dead ends: 9094
[2023-12-25 14:20:24,704 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6849 GetRequests, 6839 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:24,704 INFO  L413           NwaCegarLoop]: 7842 mSDtfsCounter, 6535 mSDsluCounter, 14906 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6535 SdHoareTripleChecker+Valid, 22748 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 14:20:24,704 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6535 Valid, 22748 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:24,714 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9094 states.
[2023-12-25 14:20:24,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9094 to 5120.
[2023-12-25 14:20:24,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5120 states, 5119 states have (on average 1.650126977925376) internal successors, (8447), 5119 states have internal predecessors, (8447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:24,763 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 8447 transitions.
[2023-12-25 14:20:24,763 INFO  L78                 Accepts]: Start accepts. Automaton has 5120 states and 8447 transitions. Word has length 3425
[2023-12-25 14:20:24,765 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:24,765 INFO  L495      AbstractCegarLoop]: Abstraction has 5120 states and 8447 transitions.
[2023-12-25 14:20:24,765 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 779.75) internal successors, (3119), 4 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:24,765 INFO  L276                IsEmpty]: Start isEmpty. Operand 5120 states and 8447 transitions.
[2023-12-25 14:20:24,856 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3427
[2023-12-25 14:20:24,856 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:24,857 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 14:20:24,894 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2023-12-25 14:20:25,072 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:25,073 INFO  L420      AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:25,073 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:25,073 INFO  L85        PathProgramCache]: Analyzing trace with hash -908993133, now seen corresponding path program 1 times
[2023-12-25 14:20:25,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:25,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253272370]
[2023-12-25 14:20:25,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:25,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:25,275 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:25,275 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581216206]
[2023-12-25 14:20:25,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:25,276 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:25,276 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:25,277 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 14:20:25,278 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 14:20:28,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:28,386 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14776 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:28,418 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:29,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 214 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:29,337 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:29,376 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked.
[2023-12-25 14:20:29,377 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:29,377 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253272370]
[2023-12-25 14:20:29,377 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:29,377 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581216206]
[2023-12-25 14:20:29,377 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [581216206] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:29,377 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:29,377 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:29,378 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513090661]
[2023-12-25 14:20:29,378 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:29,379 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:29,379 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:29,380 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:29,380 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:29,380 INFO  L87              Difference]: Start difference. First operand 5120 states and 8447 transitions. Second operand  has 4 states, 4 states have (on average 781.0) internal successors, (3124), 4 states have internal predecessors, (3124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:29,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:29,494 INFO  L93              Difference]: Finished difference Result 13543 states and 22317 transitions.
[2023-12-25 14:20:29,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:29,495 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 781.0) internal successors, (3124), 4 states have internal predecessors, (3124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3426
[2023-12-25 14:20:29,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:29,503 INFO  L225             Difference]: With dead ends: 13543
[2023-12-25 14:20:29,503 INFO  L226             Difference]: Without dead ends: 9098
[2023-12-25 14:20:29,507 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6851 GetRequests, 6841 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:29,507 INFO  L413           NwaCegarLoop]: 7832 mSDtfsCounter, 6532 mSDsluCounter, 14896 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6532 SdHoareTripleChecker+Valid, 22728 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 14:20:29,507 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6532 Valid, 22728 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:29,512 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9098 states.
[2023-12-25 14:20:29,552 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9098 to 5125.
[2023-12-25 14:20:29,556 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5125 states, 5124 states have (on average 1.6498829039812646) internal successors, (8454), 5124 states have internal predecessors, (8454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:29,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 8454 transitions.
[2023-12-25 14:20:29,560 INFO  L78                 Accepts]: Start accepts. Automaton has 5125 states and 8454 transitions. Word has length 3426
[2023-12-25 14:20:29,561 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:29,561 INFO  L495      AbstractCegarLoop]: Abstraction has 5125 states and 8454 transitions.
[2023-12-25 14:20:29,562 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 781.0) internal successors, (3124), 4 states have internal predecessors, (3124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:29,562 INFO  L276                IsEmpty]: Start isEmpty. Operand 5125 states and 8454 transitions.
[2023-12-25 14:20:29,623 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3428
[2023-12-25 14:20:29,623 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:29,624 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 14:20:29,662 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0
[2023-12-25 14:20:29,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:29,840 INFO  L420      AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:29,840 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:29,841 INFO  L85        PathProgramCache]: Analyzing trace with hash 427740645, now seen corresponding path program 1 times
[2023-12-25 14:20:29,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:29,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762123925]
[2023-12-25 14:20:29,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:29,841 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:30,064 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:30,064 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196678617]
[2023-12-25 14:20:30,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:30,065 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:30,065 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:30,066 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 14:20:30,068 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 14:20:32,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:32,953 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14779 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:32,978 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:33,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 218 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:33,766 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:33,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2023-12-25 14:20:33,807 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:33,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762123925]
[2023-12-25 14:20:33,807 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:33,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196678617]
[2023-12-25 14:20:33,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196678617] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:33,807 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:33,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:33,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794718131]
[2023-12-25 14:20:33,808 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:33,809 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:33,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:33,810 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:33,810 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:33,811 INFO  L87              Difference]: Start difference. First operand 5125 states and 8454 transitions. Second operand  has 4 states, 4 states have (on average 782.25) internal successors, (3129), 4 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:33,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:33,923 INFO  L93              Difference]: Finished difference Result 13558 states and 22338 transitions.
[2023-12-25 14:20:33,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:33,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 782.25) internal successors, (3129), 4 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3427
[2023-12-25 14:20:33,926 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:33,932 INFO  L225             Difference]: With dead ends: 13558
[2023-12-25 14:20:33,932 INFO  L226             Difference]: Without dead ends: 9102
[2023-12-25 14:20:33,936 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6853 GetRequests, 6843 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:33,936 INFO  L413           NwaCegarLoop]: 7822 mSDtfsCounter, 6529 mSDsluCounter, 14886 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6529 SdHoareTripleChecker+Valid, 22708 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 14:20:33,936 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6529 Valid, 22708 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:33,947 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9102 states.
[2023-12-25 14:20:33,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 5130.
[2023-12-25 14:20:33,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5130 states, 5129 states have (on average 1.6496393059075842) internal successors, (8461), 5129 states have internal predecessors, (8461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:33,993 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5130 states to 5130 states and 8461 transitions.
[2023-12-25 14:20:33,994 INFO  L78                 Accepts]: Start accepts. Automaton has 5130 states and 8461 transitions. Word has length 3427
[2023-12-25 14:20:33,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:33,995 INFO  L495      AbstractCegarLoop]: Abstraction has 5130 states and 8461 transitions.
[2023-12-25 14:20:33,995 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 782.25) internal successors, (3129), 4 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:33,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 5130 states and 8461 transitions.
[2023-12-25 14:20:34,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3429
[2023-12-25 14:20:34,056 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:34,056 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 14:20:34,094 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 14:20:34,259 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:34,260 INFO  L420      AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:34,260 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:34,261 INFO  L85        PathProgramCache]: Analyzing trace with hash -1659679097, now seen corresponding path program 1 times
[2023-12-25 14:20:34,261 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:34,261 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826966020]
[2023-12-25 14:20:34,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:34,261 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:34,513 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:34,513 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406886104]
[2023-12-25 14:20:34,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:34,514 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:34,514 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:34,515 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 14:20:34,517 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 14:20:37,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:37,400 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14782 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:37,452 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:38,296 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 222 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:38,297 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:38,338 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked.
[2023-12-25 14:20:38,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:38,338 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826966020]
[2023-12-25 14:20:38,339 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:38,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406886104]
[2023-12-25 14:20:38,339 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406886104] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:38,339 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:38,339 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:38,339 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115225647]
[2023-12-25 14:20:38,339 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:38,340 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:38,341 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:38,342 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:38,342 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:38,342 INFO  L87              Difference]: Start difference. First operand 5130 states and 8461 transitions. Second operand  has 4 states, 4 states have (on average 783.5) internal successors, (3134), 4 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:38,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:38,453 INFO  L93              Difference]: Finished difference Result 13573 states and 22359 transitions.
[2023-12-25 14:20:38,453 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:38,454 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 783.5) internal successors, (3134), 4 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3428
[2023-12-25 14:20:38,456 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:38,462 INFO  L225             Difference]: With dead ends: 13573
[2023-12-25 14:20:38,462 INFO  L226             Difference]: Without dead ends: 9106
[2023-12-25 14:20:38,465 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6855 GetRequests, 6845 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:38,466 INFO  L413           NwaCegarLoop]: 7812 mSDtfsCounter, 6526 mSDsluCounter, 14876 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6526 SdHoareTripleChecker+Valid, 22688 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 14:20:38,466 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6526 Valid, 22688 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:38,470 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9106 states.
[2023-12-25 14:20:38,504 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 5135.
[2023-12-25 14:20:38,507 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5135 states, 5134 states have (on average 1.649396182313985) internal successors, (8468), 5134 states have internal predecessors, (8468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:38,511 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 8468 transitions.
[2023-12-25 14:20:38,511 INFO  L78                 Accepts]: Start accepts. Automaton has 5135 states and 8468 transitions. Word has length 3428
[2023-12-25 14:20:38,512 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:38,512 INFO  L495      AbstractCegarLoop]: Abstraction has 5135 states and 8468 transitions.
[2023-12-25 14:20:38,513 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 783.5) internal successors, (3134), 4 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:38,513 INFO  L276                IsEmpty]: Start isEmpty. Operand 5135 states and 8468 transitions.
[2023-12-25 14:20:38,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3430
[2023-12-25 14:20:38,574 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:38,575 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]
[2023-12-25 14:20:38,611 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 14:20:38,789 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,SelfDestructingSolverStorable74
[2023-12-25 14:20:38,790 INFO  L420      AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:38,790 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:38,790 INFO  L85        PathProgramCache]: Analyzing trace with hash -37516303, now seen corresponding path program 1 times
[2023-12-25 14:20:38,790 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:38,790 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840126580]
[2023-12-25 14:20:38,791 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:38,791 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:38,981 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:38,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479090238]
[2023-12-25 14:20:38,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:38,982 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:38,982 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:38,983 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 14:20:38,984 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 14:20:42,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:42,179 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14785 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:42,211 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:42,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 226 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:42,948 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:43,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked.
[2023-12-25 14:20:43,010 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:43,010 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840126580]
[2023-12-25 14:20:43,010 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:43,010 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479090238]
[2023-12-25 14:20:43,010 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479090238] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:43,010 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:43,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:43,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162002814]
[2023-12-25 14:20:43,011 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:43,012 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:43,012 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:43,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:43,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:43,014 INFO  L87              Difference]: Start difference. First operand 5135 states and 8468 transitions. Second operand  has 4 states, 4 states have (on average 784.75) internal successors, (3139), 4 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:43,130 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:43,130 INFO  L93              Difference]: Finished difference Result 13588 states and 22380 transitions.
[2023-12-25 14:20:43,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:43,131 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 784.75) internal successors, (3139), 4 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3429
[2023-12-25 14:20:43,133 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:43,140 INFO  L225             Difference]: With dead ends: 13588
[2023-12-25 14:20:43,140 INFO  L226             Difference]: Without dead ends: 9110
[2023-12-25 14:20:43,143 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6857 GetRequests, 6847 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:43,144 INFO  L413           NwaCegarLoop]: 7802 mSDtfsCounter, 6523 mSDsluCounter, 14866 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 22668 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 14:20:43,144 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6523 Valid, 22668 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:43,148 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9110 states.
[2023-12-25 14:20:43,184 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9110 to 5140.
[2023-12-25 14:20:43,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5140 states, 5139 states have (on average 1.6491535318155284) internal successors, (8475), 5139 states have internal predecessors, (8475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:43,191 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5140 states to 5140 states and 8475 transitions.
[2023-12-25 14:20:43,192 INFO  L78                 Accepts]: Start accepts. Automaton has 5140 states and 8475 transitions. Word has length 3429
[2023-12-25 14:20:43,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:43,193 INFO  L495      AbstractCegarLoop]: Abstraction has 5140 states and 8475 transitions.
[2023-12-25 14:20:43,193 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 784.75) internal successors, (3139), 4 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:43,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 5140 states and 8475 transitions.
[2023-12-25 14:20:43,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3431
[2023-12-25 14:20:43,253 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:43,254 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 14:20:43,292 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0
[2023-12-25 14:20:43,468 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:43,469 INFO  L420      AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:43,469 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:43,469 INFO  L85        PathProgramCache]: Analyzing trace with hash -251358853, now seen corresponding path program 1 times
[2023-12-25 14:20:43,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:43,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985025374]
[2023-12-25 14:20:43,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:43,469 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:43,663 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:43,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512229397]
[2023-12-25 14:20:43,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:43,663 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:43,664 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:43,665 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 14:20:43,665 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 14:20:46,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:46,757 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14788 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:46,782 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:47,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 230 proven. 292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:47,614 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:47,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-25 14:20:47,652 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:47,652 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985025374]
[2023-12-25 14:20:47,652 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:47,652 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512229397]
[2023-12-25 14:20:47,652 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512229397] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:47,653 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:47,653 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:47,653 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009593679]
[2023-12-25 14:20:47,653 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:47,654 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:47,654 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:47,655 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:47,656 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:47,656 INFO  L87              Difference]: Start difference. First operand 5140 states and 8475 transitions. Second operand  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:47,767 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:47,767 INFO  L93              Difference]: Finished difference Result 13603 states and 22401 transitions.
[2023-12-25 14:20:47,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:47,768 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3430
[2023-12-25 14:20:47,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:47,776 INFO  L225             Difference]: With dead ends: 13603
[2023-12-25 14:20:47,777 INFO  L226             Difference]: Without dead ends: 9114
[2023-12-25 14:20:47,780 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6859 GetRequests, 6849 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:47,780 INFO  L413           NwaCegarLoop]: 7792 mSDtfsCounter, 6520 mSDsluCounter, 14856 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6520 SdHoareTripleChecker+Valid, 22648 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 14:20:47,780 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6520 Valid, 22648 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:47,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9114 states.
[2023-12-25 14:20:47,820 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 5145.
[2023-12-25 14:20:47,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5145 states, 5144 states have (on average 1.6489113530326593) internal successors, (8482), 5144 states have internal predecessors, (8482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:47,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 8482 transitions.
[2023-12-25 14:20:47,827 INFO  L78                 Accepts]: Start accepts. Automaton has 5145 states and 8482 transitions. Word has length 3430
[2023-12-25 14:20:47,828 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:47,828 INFO  L495      AbstractCegarLoop]: Abstraction has 5145 states and 8482 transitions.
[2023-12-25 14:20:47,829 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:47,829 INFO  L276                IsEmpty]: Start isEmpty. Operand 5145 states and 8482 transitions.
[2023-12-25 14:20:47,889 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3432
[2023-12-25 14:20:47,889 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:47,890 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]
[2023-12-25 14:20:47,925 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 14:20:48,092 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:48,092 INFO  L420      AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:48,094 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:48,094 INFO  L85        PathProgramCache]: Analyzing trace with hash -422045699, now seen corresponding path program 1 times
[2023-12-25 14:20:48,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:48,094 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36709150]
[2023-12-25 14:20:48,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:48,095 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:48,317 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:48,317 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134148728]
[2023-12-25 14:20:48,318 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:48,318 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:48,318 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:48,319 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 14:20:48,320 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 14:20:51,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:51,293 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14791 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:51,322 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:52,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 234 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:52,171 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:52,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2023-12-25 14:20:52,243 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:52,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36709150]
[2023-12-25 14:20:52,243 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:52,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134148728]
[2023-12-25 14:20:52,243 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134148728] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:52,243 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:52,244 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:52,244 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784615210]
[2023-12-25 14:20:52,244 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:52,245 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:52,245 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:52,247 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:52,247 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:52,247 INFO  L87              Difference]: Start difference. First operand 5145 states and 8482 transitions. Second operand  has 4 states, 4 states have (on average 787.25) internal successors, (3149), 4 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:52,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:52,374 INFO  L93              Difference]: Finished difference Result 13618 states and 22422 transitions.
[2023-12-25 14:20:52,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:52,375 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 787.25) internal successors, (3149), 4 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3431
[2023-12-25 14:20:52,377 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:52,384 INFO  L225             Difference]: With dead ends: 13618
[2023-12-25 14:20:52,384 INFO  L226             Difference]: Without dead ends: 9118
[2023-12-25 14:20:52,387 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6861 GetRequests, 6851 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:52,388 INFO  L413           NwaCegarLoop]: 7782 mSDtfsCounter, 6517 mSDsluCounter, 14846 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6517 SdHoareTripleChecker+Valid, 22628 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 14:20:52,388 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6517 Valid, 22628 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:52,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9118 states.
[2023-12-25 14:20:52,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9118 to 5150.
[2023-12-25 14:20:52,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5150 states, 5149 states have (on average 1.6486696445911828) internal successors, (8489), 5149 states have internal predecessors, (8489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:52,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 5150 states and 8489 transitions.
[2023-12-25 14:20:52,449 INFO  L78                 Accepts]: Start accepts. Automaton has 5150 states and 8489 transitions. Word has length 3431
[2023-12-25 14:20:52,451 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:52,451 INFO  L495      AbstractCegarLoop]: Abstraction has 5150 states and 8489 transitions.
[2023-12-25 14:20:52,452 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 787.25) internal successors, (3149), 4 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:52,452 INFO  L276                IsEmpty]: Start isEmpty. Operand 5150 states and 8489 transitions.
[2023-12-25 14:20:52,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3433
[2023-12-25 14:20:52,515 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:52,516 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 14:20:52,554 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0
[2023-12-25 14:20:52,720 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,SelfDestructingSolverStorable77
[2023-12-25 14:20:52,721 INFO  L420      AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:52,721 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:52,721 INFO  L85        PathProgramCache]: Analyzing trace with hash 653682287, now seen corresponding path program 1 times
[2023-12-25 14:20:52,721 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:52,721 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733640212]
[2023-12-25 14:20:52,721 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:52,722 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:52,913 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:52,913 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559896848]
[2023-12-25 14:20:52,914 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:52,914 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:52,914 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:52,915 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 14:20:52,916 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 14:20:55,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:20:56,016 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14794 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:20:56,046 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:20:56,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 238 proven. 284 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:20:56,972 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:20:57,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2023-12-25 14:20:57,012 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:20:57,012 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733640212]
[2023-12-25 14:20:57,012 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:20:57,012 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559896848]
[2023-12-25 14:20:57,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559896848] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:20:57,012 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:20:57,013 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:20:57,013 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068127740]
[2023-12-25 14:20:57,013 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:20:57,014 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:20:57,014 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:20:57,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:20:57,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:20:57,016 INFO  L87              Difference]: Start difference. First operand 5150 states and 8489 transitions. Second operand  has 4 states, 4 states have (on average 788.5) internal successors, (3154), 4 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:57,219 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:20:57,219 INFO  L93              Difference]: Finished difference Result 13633 states and 22443 transitions.
[2023-12-25 14:20:57,219 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:20:57,220 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 788.5) internal successors, (3154), 4 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3432
[2023-12-25 14:20:57,222 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:20:57,226 INFO  L225             Difference]: With dead ends: 13633
[2023-12-25 14:20:57,226 INFO  L226             Difference]: Without dead ends: 9122
[2023-12-25 14:20:57,228 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6863 GetRequests, 6853 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:20:57,228 INFO  L413           NwaCegarLoop]: 7772 mSDtfsCounter, 6514 mSDsluCounter, 14836 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6514 SdHoareTripleChecker+Valid, 22608 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 14:20:57,228 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6514 Valid, 22608 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:20:57,232 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9122 states.
[2023-12-25 14:20:57,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9122 to 5155.
[2023-12-25 14:20:57,267 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5155 states, 5154 states have (on average 1.648428405122235) internal successors, (8496), 5154 states have internal predecessors, (8496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:57,271 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 8496 transitions.
[2023-12-25 14:20:57,271 INFO  L78                 Accepts]: Start accepts. Automaton has 5155 states and 8496 transitions. Word has length 3432
[2023-12-25 14:20:57,273 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:20:57,273 INFO  L495      AbstractCegarLoop]: Abstraction has 5155 states and 8496 transitions.
[2023-12-25 14:20:57,273 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 788.5) internal successors, (3154), 4 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:20:57,273 INFO  L276                IsEmpty]: Start isEmpty. Operand 5155 states and 8496 transitions.
[2023-12-25 14:20:57,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3434
[2023-12-25 14:20:57,333 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:20:57,334 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]
[2023-12-25 14:20:57,371 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0
[2023-12-25 14:20:57,542 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,SelfDestructingSolverStorable78
[2023-12-25 14:20:57,543 INFO  L420      AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:20:57,543 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:20:57,543 INFO  L85        PathProgramCache]: Analyzing trace with hash 2118889993, now seen corresponding path program 1 times
[2023-12-25 14:20:57,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:20:57,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208493677]
[2023-12-25 14:20:57,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:57,544 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:20:57,764 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:20:57,764 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322603522]
[2023-12-25 14:20:57,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:20:57,765 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:20:57,765 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:20:57,766 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 14:20:57,768 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 14:21:00,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:00,697 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14797 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:21:00,724 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:01,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 242 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:01,511 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:01,551 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-12-25 14:21:01,551 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:01,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208493677]
[2023-12-25 14:21:01,551 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:01,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322603522]
[2023-12-25 14:21:01,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [322603522] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:01,552 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:01,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:21:01,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760672555]
[2023-12-25 14:21:01,552 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:01,553 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:21:01,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:01,554 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:21:01,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:21:01,555 INFO  L87              Difference]: Start difference. First operand 5155 states and 8496 transitions. Second operand  has 4 states, 4 states have (on average 789.75) internal successors, (3159), 4 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:01,670 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:01,670 INFO  L93              Difference]: Finished difference Result 13648 states and 22464 transitions.
[2023-12-25 14:21:01,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:01,671 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 789.75) internal successors, (3159), 4 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3433
[2023-12-25 14:21:01,672 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:01,679 INFO  L225             Difference]: With dead ends: 13648
[2023-12-25 14:21:01,679 INFO  L226             Difference]: Without dead ends: 9126
[2023-12-25 14:21:01,683 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6865 GetRequests, 6855 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:21:01,683 INFO  L413           NwaCegarLoop]: 7762 mSDtfsCounter, 6511 mSDsluCounter, 14826 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6511 SdHoareTripleChecker+Valid, 22588 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 14:21:01,684 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6511 Valid, 22588 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:01,688 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9126 states.
[2023-12-25 14:21:01,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9126 to 5160.
[2023-12-25 14:21:01,732 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5160 states, 5159 states have (on average 1.64818763326226) internal successors, (8503), 5159 states have internal predecessors, (8503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:01,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 8503 transitions.
[2023-12-25 14:21:01,735 INFO  L78                 Accepts]: Start accepts. Automaton has 5160 states and 8503 transitions. Word has length 3433
[2023-12-25 14:21:01,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:01,737 INFO  L495      AbstractCegarLoop]: Abstraction has 5160 states and 8503 transitions.
[2023-12-25 14:21:01,737 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 789.75) internal successors, (3159), 4 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:01,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 5160 states and 8503 transitions.
[2023-12-25 14:21:01,798 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3435
[2023-12-25 14:21:01,798 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:01,799 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 14:21:01,835 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 14:21:02,016 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,SelfDestructingSolverStorable79
[2023-12-25 14:21:02,017 INFO  L420      AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:02,017 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:02,017 INFO  L85        PathProgramCache]: Analyzing trace with hash 595168611, now seen corresponding path program 1 times
[2023-12-25 14:21:02,017 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:02,017 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038085786]
[2023-12-25 14:21:02,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:02,018 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:02,210 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:02,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217879267]
[2023-12-25 14:21:02,211 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:02,211 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:02,211 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:02,212 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 14:21:02,212 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 14:21:05,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:05,464 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14800 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:21:05,501 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:06,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 246 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:06,261 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:06,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2023-12-25 14:21:06,299 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:06,299 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038085786]
[2023-12-25 14:21:06,299 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:06,299 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217879267]
[2023-12-25 14:21:06,299 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217879267] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:06,299 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:06,300 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:21:06,300 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25096176]
[2023-12-25 14:21:06,300 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:06,301 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:21:06,301 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:06,303 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:21:06,303 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:21:06,303 INFO  L87              Difference]: Start difference. First operand 5160 states and 8503 transitions. Second operand  has 4 states, 4 states have (on average 790.75) internal successors, (3163), 4 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:06,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:06,415 INFO  L93              Difference]: Finished difference Result 13663 states and 22484 transitions.
[2023-12-25 14:21:06,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:06,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 790.75) internal successors, (3163), 4 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3434
[2023-12-25 14:21:06,417 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:06,423 INFO  L225             Difference]: With dead ends: 13663
[2023-12-25 14:21:06,424 INFO  L226             Difference]: Without dead ends: 9130
[2023-12-25 14:21:06,427 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6867 GetRequests, 6857 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-25 14:21:06,428 INFO  L413           NwaCegarLoop]: 7753 mSDtfsCounter, 6508 mSDsluCounter, 14817 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6508 SdHoareTripleChecker+Valid, 22570 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 14:21:06,428 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6508 Valid, 22570 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:06,432 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9130 states.
[2023-12-25 14:21:06,471 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 5167.
[2023-12-25 14:21:06,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:06,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:06,479 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3434
[2023-12-25 14:21:06,480 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:06,480 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:06,481 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 790.75) internal successors, (3163), 4 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:06,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:06,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3436
[2023-12-25 14:21:06,541 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:06,542 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]
[2023-12-25 14:21:06,587 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0
[2023-12-25 14:21:06,768 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:06,768 INFO  L420      AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:06,769 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:06,769 INFO  L85        PathProgramCache]: Analyzing trace with hash -127034859, now seen corresponding path program 1 times
[2023-12-25 14:21:06,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:06,769 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149251169]
[2023-12-25 14:21:06,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:06,770 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:07,036 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:07,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624469052]
[2023-12-25 14:21:07,037 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:07,037 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:07,037 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:07,038 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 14:21:07,039 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 14:21:09,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:10,076 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14803 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:21:10,118 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:10,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 246 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:10,860 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:10,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 522 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2023-12-25 14:21:10,920 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:10,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149251169]
[2023-12-25 14:21:10,920 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:10,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624469052]
[2023-12-25 14:21:10,920 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624469052] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:10,920 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:10,921 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:10,921 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629291755]
[2023-12-25 14:21:10,921 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:10,923 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:10,923 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:10,927 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:10,927 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:10,928 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 632.6) internal successors, (3163), 5 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:11,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:11,165 INFO  L93              Difference]: Finished difference Result 17993 states and 29601 transitions.
[2023-12-25 14:21:11,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:11,166 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 632.6) internal successors, (3163), 5 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3435
[2023-12-25 14:21:11,168 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:11,179 INFO  L225             Difference]: With dead ends: 17993
[2023-12-25 14:21:11,179 INFO  L226             Difference]: Without dead ends: 13654
[2023-12-25 14:21:11,184 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6868 GetRequests, 6857 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:11,184 INFO  L413           NwaCegarLoop]: 20291 mSDtfsCounter, 13215 mSDsluCounter, 47631 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13215 SdHoareTripleChecker+Valid, 67922 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:11,184 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13215 Valid, 67922 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:11,191 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13654 states.
[2023-12-25 14:21:11,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13654 to 5167.
[2023-12-25 14:21:11,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:11,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:11,358 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3435
[2023-12-25 14:21:11,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:11,359 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:11,360 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 632.6) internal successors, (3163), 5 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:11,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:11,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3437
[2023-12-25 14:21:11,420 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:11,420 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 14:21:11,458 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0
[2023-12-25 14:21:11,631 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:11,631 INFO  L420      AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:11,632 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:11,632 INFO  L85        PathProgramCache]: Analyzing trace with hash -1475052035, now seen corresponding path program 1 times
[2023-12-25 14:21:11,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:11,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030379415]
[2023-12-25 14:21:11,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:11,632 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:11,830 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:11,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079324669]
[2023-12-25 14:21:11,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:11,833 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:11,833 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:11,834 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 14:21:11,836 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 14:21:15,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:15,158 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14806 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:21:15,195 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:16,086 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 242 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:16,087 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:16,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked.
[2023-12-25 14:21:16,143 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:16,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030379415]
[2023-12-25 14:21:16,143 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:16,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079324669]
[2023-12-25 14:21:16,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079324669] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:16,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:16,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:16,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533993035]
[2023-12-25 14:21:16,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:16,145 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:16,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:16,146 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:16,147 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:16,147 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 632.0) internal successors, (3160), 5 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:16,354 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:16,355 INFO  L93              Difference]: Finished difference Result 18188 states and 29926 transitions.
[2023-12-25 14:21:16,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:16,355 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 632.0) internal successors, (3160), 5 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3436
[2023-12-25 14:21:16,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:16,367 INFO  L225             Difference]: With dead ends: 18188
[2023-12-25 14:21:16,367 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:16,372 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6870 GetRequests, 6859 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:16,372 INFO  L413           NwaCegarLoop]: 14474 mSDtfsCounter, 13218 mSDsluCounter, 36000 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13218 SdHoareTripleChecker+Valid, 50474 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:16,372 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13218 Valid, 50474 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:16,378 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:16,425 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:16,428 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:16,431 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:16,432 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3436
[2023-12-25 14:21:16,433 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:16,433 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:16,433 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 632.0) internal successors, (3160), 5 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:16,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:16,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3438
[2023-12-25 14:21:16,493 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:16,494 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]
[2023-12-25 14:21:16,529 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 14:21:16,696 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,SelfDestructingSolverStorable82
[2023-12-25 14:21:16,696 INFO  L420      AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:16,697 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:16,697 INFO  L85        PathProgramCache]: Analyzing trace with hash -145552169, now seen corresponding path program 1 times
[2023-12-25 14:21:16,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:16,697 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276803292]
[2023-12-25 14:21:16,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:16,697 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:16,908 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:16,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579698834]
[2023-12-25 14:21:16,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:16,909 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:16,909 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:16,910 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 14:21:16,912 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 14:21:19,933 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:20,017 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14810 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:21:20,047 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:21,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 238 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:21,227 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:21,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked.
[2023-12-25 14:21:21,278 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:21,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276803292]
[2023-12-25 14:21:21,278 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:21,279 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579698834]
[2023-12-25 14:21:21,279 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579698834] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:21,279 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:21,279 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:21,279 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886968070]
[2023-12-25 14:21:21,279 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:21,281 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:21,281 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:21,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:21,282 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:21,283 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 631.8) internal successors, (3159), 5 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:21,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:21,504 INFO  L93              Difference]: Finished difference Result 18182 states and 29916 transitions.
[2023-12-25 14:21:21,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:21,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 631.8) internal successors, (3159), 5 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3437
[2023-12-25 14:21:21,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:21,519 INFO  L225             Difference]: With dead ends: 18182
[2023-12-25 14:21:21,519 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:21,525 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6872 GetRequests, 6861 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:21,526 INFO  L413           NwaCegarLoop]: 14484 mSDtfsCounter, 13221 mSDsluCounter, 36020 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13221 SdHoareTripleChecker+Valid, 50504 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:21,526 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13221 Valid, 50504 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:21,534 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:21,590 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:21,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:21,598 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:21,598 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3437
[2023-12-25 14:21:21,599 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:21,600 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:21,600 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 631.8) internal successors, (3159), 5 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:21,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:21,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3439
[2023-12-25 14:21:21,661 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:21,662 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]
[2023-12-25 14:21:21,706 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0
[2023-12-25 14:21:21,884 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:21,885 INFO  L420      AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:21,885 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:21,885 INFO  L85        PathProgramCache]: Analyzing trace with hash -1719698565, now seen corresponding path program 1 times
[2023-12-25 14:21:21,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:21,885 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025846823]
[2023-12-25 14:21:21,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:21,886 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:22,130 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:22,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400836960]
[2023-12-25 14:21:22,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:22,131 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:22,131 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:22,132 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 14:21:22,134 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 14:21:25,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:25,290 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14813 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:21:25,322 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:26,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 234 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:26,199 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:26,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked.
[2023-12-25 14:21:26,251 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:26,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025846823]
[2023-12-25 14:21:26,251 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:26,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400836960]
[2023-12-25 14:21:26,251 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400836960] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:26,251 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:26,252 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:26,252 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524677775]
[2023-12-25 14:21:26,252 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:26,254 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:26,254 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:26,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:26,262 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:26,262 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 631.6) internal successors, (3158), 5 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:26,469 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:26,470 INFO  L93              Difference]: Finished difference Result 18176 states and 29906 transitions.
[2023-12-25 14:21:26,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:26,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 631.6) internal successors, (3158), 5 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3438
[2023-12-25 14:21:26,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:26,485 INFO  L225             Difference]: With dead ends: 18176
[2023-12-25 14:21:26,485 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:26,491 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6874 GetRequests, 6863 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:26,491 INFO  L413           NwaCegarLoop]: 14494 mSDtfsCounter, 13224 mSDsluCounter, 36040 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13224 SdHoareTripleChecker+Valid, 50534 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:26,491 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13224 Valid, 50534 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:26,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:26,559 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:26,563 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:26,568 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:26,568 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3438
[2023-12-25 14:21:26,569 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:26,569 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:26,570 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 631.6) internal successors, (3158), 5 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:26,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:26,632 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3440
[2023-12-25 14:21:26,632 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:26,633 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 14:21:26,679 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0
[2023-12-25 14:21:26,844 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,SelfDestructingSolverStorable84
[2023-12-25 14:21:26,844 INFO  L420      AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:26,845 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:26,845 INFO  L85        PathProgramCache]: Analyzing trace with hash 873185689, now seen corresponding path program 1 times
[2023-12-25 14:21:26,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:26,845 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671273621]
[2023-12-25 14:21:26,845 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:26,845 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:27,064 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:27,064 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729113666]
[2023-12-25 14:21:27,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:27,065 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:27,065 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:27,066 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 14:21:27,089 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 14:21:30,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:30,360 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14817 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:21:30,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:31,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 230 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:31,145 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:31,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked.
[2023-12-25 14:21:31,198 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:31,198 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671273621]
[2023-12-25 14:21:31,198 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:31,198 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729113666]
[2023-12-25 14:21:31,198 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729113666] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:31,198 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:31,199 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:31,199 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108015228]
[2023-12-25 14:21:31,199 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:31,200 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:31,200 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:31,203 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:31,203 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:31,203 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 631.4) internal successors, (3157), 5 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:31,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:31,427 INFO  L93              Difference]: Finished difference Result 18170 states and 29896 transitions.
[2023-12-25 14:21:31,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:31,428 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 631.4) internal successors, (3157), 5 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3439
[2023-12-25 14:21:31,430 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:31,443 INFO  L225             Difference]: With dead ends: 18170
[2023-12-25 14:21:31,444 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:31,451 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6876 GetRequests, 6865 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:31,452 INFO  L413           NwaCegarLoop]: 14504 mSDtfsCounter, 13227 mSDsluCounter, 36060 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13227 SdHoareTripleChecker+Valid, 50564 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:31,452 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13227 Valid, 50564 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:31,461 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:31,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:31,527 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:31,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:31,532 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3439
[2023-12-25 14:21:31,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:31,533 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:31,534 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 631.4) internal successors, (3157), 5 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:31,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:31,596 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3441
[2023-12-25 14:21:31,596 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:31,597 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]
[2023-12-25 14:21:31,641 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0
[2023-12-25 14:21:31,813 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:31,814 INFO  L420      AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:31,814 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:31,814 INFO  L85        PathProgramCache]: Analyzing trace with hash -1363314951, now seen corresponding path program 1 times
[2023-12-25 14:21:31,814 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:31,814 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948085754]
[2023-12-25 14:21:31,814 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:31,814 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:32,020 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:32,020 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407344269]
[2023-12-25 14:21:32,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:32,021 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:32,021 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:32,022 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 14:21:32,024 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 14:21:35,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:35,240 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14820 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:21:35,269 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:36,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 226 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:36,027 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:36,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked.
[2023-12-25 14:21:36,087 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:36,087 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948085754]
[2023-12-25 14:21:36,087 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:36,088 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407344269]
[2023-12-25 14:21:36,088 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [407344269] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:36,088 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:36,089 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:36,089 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543907002]
[2023-12-25 14:21:36,089 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:36,090 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:36,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:36,091 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:36,091 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:36,092 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 631.2) internal successors, (3156), 5 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:36,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:36,303 INFO  L93              Difference]: Finished difference Result 18164 states and 29886 transitions.
[2023-12-25 14:21:36,303 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:36,304 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 631.2) internal successors, (3156), 5 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3440
[2023-12-25 14:21:36,306 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:36,318 INFO  L225             Difference]: With dead ends: 18164
[2023-12-25 14:21:36,318 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:36,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6878 GetRequests, 6867 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:36,325 INFO  L413           NwaCegarLoop]: 14514 mSDtfsCounter, 13230 mSDsluCounter, 36080 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13230 SdHoareTripleChecker+Valid, 50594 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:36,325 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13230 Valid, 50594 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:36,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:36,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:36,393 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:36,398 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:36,398 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3440
[2023-12-25 14:21:36,399 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:36,399 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:36,400 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 631.2) internal successors, (3156), 5 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:36,400 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:36,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3442
[2023-12-25 14:21:36,460 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:36,461 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]
[2023-12-25 14:21:36,503 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0
[2023-12-25 14:21:36,674 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:36,674 INFO  L420      AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:36,674 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:36,675 INFO  L85        PathProgramCache]: Analyzing trace with hash -109422501, now seen corresponding path program 1 times
[2023-12-25 14:21:36,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:36,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259966051]
[2023-12-25 14:21:36,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:36,675 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:36,882 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:36,882 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797815491]
[2023-12-25 14:21:36,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:36,883 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:36,883 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:36,884 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 14:21:36,885 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 14:21:40,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:40,102 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14824 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:21:40,135 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:40,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 222 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:40,951 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:41,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked.
[2023-12-25 14:21:41,240 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:41,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259966051]
[2023-12-25 14:21:41,240 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:41,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797815491]
[2023-12-25 14:21:41,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797815491] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:41,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:41,240 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:41,240 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637727323]
[2023-12-25 14:21:41,241 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:41,242 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:41,242 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:41,243 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:41,243 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:41,244 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 631.0) internal successors, (3155), 5 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:41,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:41,460 INFO  L93              Difference]: Finished difference Result 18158 states and 29876 transitions.
[2023-12-25 14:21:41,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:41,461 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 631.0) internal successors, (3155), 5 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3441
[2023-12-25 14:21:41,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:41,475 INFO  L225             Difference]: With dead ends: 18158
[2023-12-25 14:21:41,475 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:41,482 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6880 GetRequests, 6869 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:41,508 INFO  L413           NwaCegarLoop]: 14524 mSDtfsCounter, 13233 mSDsluCounter, 36100 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13233 SdHoareTripleChecker+Valid, 50624 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:41,508 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13233 Valid, 50624 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:41,518 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:41,573 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:41,577 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:41,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:41,581 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3441
[2023-12-25 14:21:41,583 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:41,583 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:41,583 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 631.0) internal successors, (3155), 5 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:41,583 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:41,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3443
[2023-12-25 14:21:41,758 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:41,758 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]
[2023-12-25 14:21:41,802 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 14:21:41,977 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,SelfDestructingSolverStorable87
[2023-12-25 14:21:41,977 INFO  L420      AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:41,978 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:41,978 INFO  L85        PathProgramCache]: Analyzing trace with hash 1321193591, now seen corresponding path program 1 times
[2023-12-25 14:21:41,978 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:41,978 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559685371]
[2023-12-25 14:21:41,978 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:41,978 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:42,186 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:42,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639852456]
[2023-12-25 14:21:42,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:42,187 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:42,188 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:42,188 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 14:21:42,191 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 14:21:45,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:45,319 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14827 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:21:45,352 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:46,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 218 proven. 305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:46,339 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:46,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked.
[2023-12-25 14:21:46,392 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:46,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559685371]
[2023-12-25 14:21:46,392 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:46,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639852456]
[2023-12-25 14:21:46,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639852456] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:46,392 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:46,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:46,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128034641]
[2023-12-25 14:21:46,393 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:46,394 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:46,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:46,395 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:46,396 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:46,396 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 630.8) internal successors, (3154), 5 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:46,607 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:46,607 INFO  L93              Difference]: Finished difference Result 18152 states and 29866 transitions.
[2023-12-25 14:21:46,608 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:46,609 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 630.8) internal successors, (3154), 5 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3442
[2023-12-25 14:21:46,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:46,624 INFO  L225             Difference]: With dead ends: 18152
[2023-12-25 14:21:46,624 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:46,631 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6882 GetRequests, 6871 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:46,631 INFO  L413           NwaCegarLoop]: 14534 mSDtfsCounter, 13236 mSDsluCounter, 36120 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13236 SdHoareTripleChecker+Valid, 50654 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:46,631 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13236 Valid, 50654 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:46,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:46,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:46,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:46,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:46,706 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3442
[2023-12-25 14:21:46,708 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:46,708 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:46,708 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 630.8) internal successors, (3154), 5 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:46,708 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:46,770 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3444
[2023-12-25 14:21:46,770 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:46,771 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]
[2023-12-25 14:21:46,817 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0
[2023-12-25 14:21:46,984 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,SelfDestructingSolverStorable88
[2023-12-25 14:21:46,984 INFO  L420      AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:46,985 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:46,985 INFO  L85        PathProgramCache]: Analyzing trace with hash -1983811299, now seen corresponding path program 1 times
[2023-12-25 14:21:46,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:46,985 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512896614]
[2023-12-25 14:21:46,985 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:46,985 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:47,204 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:47,205 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135186766]
[2023-12-25 14:21:47,205 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:47,205 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:47,206 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:47,207 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 14:21:47,207 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 14:21:50,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:50,286 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14831 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:21:50,316 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:51,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 214 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:51,150 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:51,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked.
[2023-12-25 14:21:51,200 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:51,200 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512896614]
[2023-12-25 14:21:51,200 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:51,200 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135186766]
[2023-12-25 14:21:51,200 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [135186766] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:51,200 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:51,201 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:51,201 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910965494]
[2023-12-25 14:21:51,201 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:51,202 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:51,202 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:51,203 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:51,203 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:51,204 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 630.6) internal successors, (3153), 5 states have internal predecessors, (3153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:51,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:51,498 INFO  L93              Difference]: Finished difference Result 18146 states and 29856 transitions.
[2023-12-25 14:21:51,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:51,499 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 630.6) internal successors, (3153), 5 states have internal predecessors, (3153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3443
[2023-12-25 14:21:51,500 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:51,509 INFO  L225             Difference]: With dead ends: 18146
[2023-12-25 14:21:51,510 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:51,512 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6884 GetRequests, 6873 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:51,513 INFO  L413           NwaCegarLoop]: 14544 mSDtfsCounter, 13239 mSDsluCounter, 36140 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13239 SdHoareTripleChecker+Valid, 50684 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:51,513 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13239 Valid, 50684 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:51,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:51,569 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:51,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:51,578 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:51,579 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3443
[2023-12-25 14:21:51,580 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:51,580 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:51,581 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 630.6) internal successors, (3153), 5 states have internal predecessors, (3153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:51,581 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:51,643 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3445
[2023-12-25 14:21:51,643 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:51,644 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]
[2023-12-25 14:21:51,696 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 14:21:51,857 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,SelfDestructingSolverStorable89
[2023-12-25 14:21:51,858 INFO  L420      AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:51,858 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:51,858 INFO  L85        PathProgramCache]: Analyzing trace with hash -1321736203, now seen corresponding path program 1 times
[2023-12-25 14:21:51,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:51,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421467587]
[2023-12-25 14:21:51,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:51,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:52,090 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:52,090 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892872213]
[2023-12-25 14:21:52,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:52,091 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:52,091 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:52,092 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 14:21:52,093 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 14:21:55,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:21:55,363 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14834 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:21:55,394 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:21:56,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 210 proven. 313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:21:56,236 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:21:56,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked.
[2023-12-25 14:21:56,288 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:21:56,288 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421467587]
[2023-12-25 14:21:56,288 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:21:56,288 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892872213]
[2023-12-25 14:21:56,288 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892872213] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:21:56,288 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:21:56,289 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:21:56,289 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471885477]
[2023-12-25 14:21:56,289 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:21:56,290 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:21:56,290 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:21:56,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:21:56,292 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:56,292 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 630.4) internal successors, (3152), 5 states have internal predecessors, (3152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:56,503 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:21:56,503 INFO  L93              Difference]: Finished difference Result 18140 states and 29846 transitions.
[2023-12-25 14:21:56,503 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:21:56,504 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 630.4) internal successors, (3152), 5 states have internal predecessors, (3152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3444
[2023-12-25 14:21:56,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:21:56,518 INFO  L225             Difference]: With dead ends: 18140
[2023-12-25 14:21:56,518 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:21:56,524 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6886 GetRequests, 6875 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:21:56,524 INFO  L413           NwaCegarLoop]: 14554 mSDtfsCounter, 13242 mSDsluCounter, 36160 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13242 SdHoareTripleChecker+Valid, 50714 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:21:56,525 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13242 Valid, 50714 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:21:56,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:21:56,590 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:21:56,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:56,598 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:21:56,598 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3444
[2023-12-25 14:21:56,599 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:21:56,599 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:21:56,600 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 630.4) internal successors, (3152), 5 states have internal predecessors, (3152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:21:56,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:21:56,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3446
[2023-12-25 14:21:56,661 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:21:56,662 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]
[2023-12-25 14:21:56,705 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0
[2023-12-25 14:21:56,870 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:56,870 INFO  L420      AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:21:56,870 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:21:56,871 INFO  L85        PathProgramCache]: Analyzing trace with hash 1883483103, now seen corresponding path program 1 times
[2023-12-25 14:21:56,871 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:21:56,871 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685743842]
[2023-12-25 14:21:56,871 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:56,871 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:21:57,089 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:21:57,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566947241]
[2023-12-25 14:21:57,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:21:57,090 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:21:57,090 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:21:57,091 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 14:21:57,092 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 14:22:00,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:00,173 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14838 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:22:00,203 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:01,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 206 proven. 317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:01,043 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:01,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked.
[2023-12-25 14:22:01,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:01,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685743842]
[2023-12-25 14:22:01,090 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:01,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566947241]
[2023-12-25 14:22:01,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [566947241] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:01,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:01,091 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:22:01,091 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500747043]
[2023-12-25 14:22:01,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:01,092 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:22:01,092 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:01,093 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:22:01,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:01,094 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 630.2) internal successors, (3151), 5 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:01,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:01,300 INFO  L93              Difference]: Finished difference Result 18137 states and 29841 transitions.
[2023-12-25 14:22:01,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:22:01,301 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 630.2) internal successors, (3151), 5 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3445
[2023-12-25 14:22:01,303 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:01,317 INFO  L225             Difference]: With dead ends: 18137
[2023-12-25 14:22:01,317 INFO  L226             Difference]: Without dead ends: 13659
[2023-12-25 14:22:01,324 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6888 GetRequests, 6877 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:01,325 INFO  L413           NwaCegarLoop]: 14564 mSDtfsCounter, 13245 mSDsluCounter, 36180 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13245 SdHoareTripleChecker+Valid, 50744 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:01,325 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13245 Valid, 50744 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:01,335 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13659 states.
[2023-12-25 14:22:01,396 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 5167.
[2023-12-25 14:22:01,399 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:01,403 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:01,403 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3445
[2023-12-25 14:22:01,405 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:01,405 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:01,405 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 630.2) internal successors, (3151), 5 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:01,406 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:01,467 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3447
[2023-12-25 14:22:01,467 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:01,468 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:01,505 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 14:22:01,672 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:01,673 INFO  L420      AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:01,673 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:01,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -862511757, now seen corresponding path program 1 times
[2023-12-25 14:22:01,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:01,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828930462]
[2023-12-25 14:22:01,674 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:01,674 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:01,905 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:01,905 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5175589]
[2023-12-25 14:22:01,906 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:01,906 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:01,906 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:01,907 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 14:22:01,909 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 14:22:04,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:05,037 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14841 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:22:05,069 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:05,955 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 200 proven. 323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:05,956 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:06,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked.
[2023-12-25 14:22:06,008 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:06,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828930462]
[2023-12-25 14:22:06,008 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:06,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5175589]
[2023-12-25 14:22:06,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [5175589] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:06,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:06,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:22:06,008 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917097848]
[2023-12-25 14:22:06,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:06,010 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:22:06,010 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:06,011 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:22:06,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:06,012 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 629.8) internal successors, (3149), 5 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:06,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:06,226 INFO  L93              Difference]: Finished difference Result 18125 states and 29821 transitions.
[2023-12-25 14:22:06,226 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:22:06,226 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 629.8) internal successors, (3149), 5 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3446
[2023-12-25 14:22:06,228 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:06,242 INFO  L225             Difference]: With dead ends: 18125
[2023-12-25 14:22:06,242 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:22:06,249 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6890 GetRequests, 6879 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:06,249 INFO  L413           NwaCegarLoop]: 14579 mSDtfsCounter, 13251 mSDsluCounter, 36210 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13251 SdHoareTripleChecker+Valid, 50789 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:06,249 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13251 Valid, 50789 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:06,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:22:06,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:22:06,409 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:06,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:06,414 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3446
[2023-12-25 14:22:06,416 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:06,416 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:06,416 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 629.8) internal successors, (3149), 5 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:06,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:06,477 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3448
[2023-12-25 14:22:06,477 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:06,478 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]
[2023-12-25 14:22:06,524 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 14:22:06,684 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:06,684 INFO  L420      AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:06,684 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:06,685 INFO  L85        PathProgramCache]: Analyzing trace with hash 1198926781, now seen corresponding path program 1 times
[2023-12-25 14:22:06,685 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:06,685 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976725583]
[2023-12-25 14:22:06,685 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:06,686 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:06,901 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:06,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921100429]
[2023-12-25 14:22:06,902 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:06,902 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:06,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:06,903 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 14:22:06,904 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 14:22:09,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:10,056 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14844 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:10,100 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:10,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 196 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:10,925 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:10,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2023-12-25 14:22:10,969 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:10,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976725583]
[2023-12-25 14:22:10,969 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:10,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921100429]
[2023-12-25 14:22:10,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921100429] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:10,970 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:10,970 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:10,971 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006817574]
[2023-12-25 14:22:10,971 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:10,972 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:10,972 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:10,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:10,974 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:10,974 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 787.0) internal successors, (3148), 4 states have internal predecessors, (3148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:11,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:11,106 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:11,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:11,107 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 787.0) internal successors, (3148), 4 states have internal predecessors, (3148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3447
[2023-12-25 14:22:11,108 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:11,116 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:11,116 INFO  L226             Difference]: Without dead ends: 9208
[2023-12-25 14:22:11,121 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6892 GetRequests, 6883 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:11,121 INFO  L413           NwaCegarLoop]: 7878 mSDtfsCounter, 6544 mSDsluCounter, 14940 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6544 SdHoareTripleChecker+Valid, 22818 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:11,121 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6544 Valid, 22818 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:11,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9208 states.
[2023-12-25 14:22:11,173 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9208 to 5167.
[2023-12-25 14:22:11,178 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:11,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:11,184 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3447
[2023-12-25 14:22:11,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:11,185 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:11,186 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 787.0) internal successors, (3148), 4 states have internal predecessors, (3148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:11,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:11,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3449
[2023-12-25 14:22:11,249 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:11,250 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 14:22:11,298 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 14:22:11,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:11,474 INFO  L420      AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:11,474 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:11,474 INFO  L85        PathProgramCache]: Analyzing trace with hash 736982259, now seen corresponding path program 1 times
[2023-12-25 14:22:11,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:11,475 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876469244]
[2023-12-25 14:22:11,475 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:11,475 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:11,681 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:11,681 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062604883]
[2023-12-25 14:22:11,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:11,682 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:11,682 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:11,683 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 14:22:11,685 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 14:22:14,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:14,668 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14847 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:14,696 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:15,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 192 proven. 331 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:15,632 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:15,673 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked.
[2023-12-25 14:22:15,673 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:15,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876469244]
[2023-12-25 14:22:15,673 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:15,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062604883]
[2023-12-25 14:22:15,673 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062604883] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:15,673 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:15,674 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:15,674 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256414685]
[2023-12-25 14:22:15,674 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:15,675 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:15,676 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:15,677 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:15,677 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:15,677 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 786.75) internal successors, (3147), 4 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:15,885 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:15,885 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:15,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:15,886 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 786.75) internal successors, (3147), 4 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3448
[2023-12-25 14:22:15,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:15,892 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:15,892 INFO  L226             Difference]: Without dead ends: 9214
[2023-12-25 14:22:15,894 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6894 GetRequests, 6885 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:15,894 INFO  L413           NwaCegarLoop]: 7888 mSDtfsCounter, 6547 mSDsluCounter, 14950 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6547 SdHoareTripleChecker+Valid, 22838 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:15,895 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6547 Valid, 22838 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:15,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9214 states.
[2023-12-25 14:22:15,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9214 to 5167.
[2023-12-25 14:22:15,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:15,942 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:15,942 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3448
[2023-12-25 14:22:15,943 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:15,943 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:15,943 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 786.75) internal successors, (3147), 4 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:15,943 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:16,004 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3450
[2023-12-25 14:22:16,004 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:16,005 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 14:22:16,041 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0
[2023-12-25 14:22:16,228 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,SelfDestructingSolverStorable94
[2023-12-25 14:22:16,228 INFO  L420      AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:16,229 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:16,229 INFO  L85        PathProgramCache]: Analyzing trace with hash 210575745, now seen corresponding path program 1 times
[2023-12-25 14:22:16,229 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:16,229 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542071454]
[2023-12-25 14:22:16,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:16,229 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:16,428 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:16,429 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023878568]
[2023-12-25 14:22:16,429 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:16,429 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:16,429 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:16,430 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 14:22:16,432 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 14:22:19,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:19,660 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14850 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:19,695 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:20,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 188 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:20,416 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:20,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked.
[2023-12-25 14:22:20,454 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:20,454 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542071454]
[2023-12-25 14:22:20,454 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:20,454 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023878568]
[2023-12-25 14:22:20,454 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023878568] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:20,454 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:20,454 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:20,454 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649604168]
[2023-12-25 14:22:20,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:20,456 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:20,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:20,457 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:20,457 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:20,458 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 786.5) internal successors, (3146), 4 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:20,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:20,577 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:20,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:20,578 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 786.5) internal successors, (3146), 4 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3449
[2023-12-25 14:22:20,579 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:20,587 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:20,587 INFO  L226             Difference]: Without dead ends: 9220
[2023-12-25 14:22:20,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6896 GetRequests, 6887 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:20,592 INFO  L413           NwaCegarLoop]: 7898 mSDtfsCounter, 6550 mSDsluCounter, 14960 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6550 SdHoareTripleChecker+Valid, 22858 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:20,592 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6550 Valid, 22858 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:20,599 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9220 states.
[2023-12-25 14:22:20,648 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9220 to 5167.
[2023-12-25 14:22:20,652 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:20,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:20,658 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3449
[2023-12-25 14:22:20,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:20,660 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:20,660 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 786.5) internal successors, (3146), 4 states have internal predecessors, (3146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:20,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:20,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3451
[2023-12-25 14:22:20,722 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:20,723 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]
[2023-12-25 14:22:20,766 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 14:22:20,940 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:20,940 INFO  L420      AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:20,941 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:20,941 INFO  L85        PathProgramCache]: Analyzing trace with hash -1429707533, now seen corresponding path program 1 times
[2023-12-25 14:22:20,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:20,941 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804662316]
[2023-12-25 14:22:20,941 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:20,941 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:21,199 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:21,199 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062185728]
[2023-12-25 14:22:21,200 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:21,200 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:21,200 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:21,221 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 14:22:21,223 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 14:22:24,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:24,305 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14853 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:22:24,333 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:25,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 184 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:25,063 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:25,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked.
[2023-12-25 14:22:25,113 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:25,113 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804662316]
[2023-12-25 14:22:25,113 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:25,113 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062185728]
[2023-12-25 14:22:25,113 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062185728] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:25,113 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:25,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:22:25,114 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672398372]
[2023-12-25 14:22:25,114 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:25,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:22:25,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:25,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:22:25,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:25,118 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:25,431 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:25,431 INFO  L93              Difference]: Finished difference Result 18101 states and 29781 transitions.
[2023-12-25 14:22:25,432 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:22:25,432 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3450
[2023-12-25 14:22:25,434 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:25,446 INFO  L225             Difference]: With dead ends: 18101
[2023-12-25 14:22:25,447 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:22:25,453 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6898 GetRequests, 6887 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:25,453 INFO  L413           NwaCegarLoop]: 14619 mSDtfsCounter, 13263 mSDsluCounter, 36290 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13263 SdHoareTripleChecker+Valid, 50909 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:25,453 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13263 Valid, 50909 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:25,463 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:22:25,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:22:25,527 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:25,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:25,531 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3450
[2023-12-25 14:22:25,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:25,533 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:25,533 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:25,533 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:25,595 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3452
[2023-12-25 14:22:25,608 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:25,609 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]
[2023-12-25 14:22:25,656 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 14:22:25,832 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,SelfDestructingSolverStorable96
[2023-12-25 14:22:25,832 INFO  L420      AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:25,833 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:25,833 INFO  L85        PathProgramCache]: Analyzing trace with hash -1480223803, now seen corresponding path program 1 times
[2023-12-25 14:22:25,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:25,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484581093]
[2023-12-25 14:22:25,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:25,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:26,070 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:26,071 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264569555]
[2023-12-25 14:22:26,071 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:26,071 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:26,072 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:26,073 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 14:22:26,074 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 14:22:29,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:29,138 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14856 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:29,168 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:29,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 180 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:29,812 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:29,852 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked.
[2023-12-25 14:22:29,852 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:29,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484581093]
[2023-12-25 14:22:29,852 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:29,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264569555]
[2023-12-25 14:22:29,852 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264569555] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:29,852 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:29,853 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:29,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704656788]
[2023-12-25 14:22:29,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:29,854 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:29,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:29,856 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:29,856 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:29,856 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:29,993 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:29,994 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:29,994 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:29,995 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3451
[2023-12-25 14:22:29,997 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:30,006 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:30,006 INFO  L226             Difference]: Without dead ends: 9232
[2023-12-25 14:22:30,013 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6900 GetRequests, 6891 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:30,013 INFO  L413           NwaCegarLoop]: 7918 mSDtfsCounter, 6556 mSDsluCounter, 14980 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6556 SdHoareTripleChecker+Valid, 22898 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:30,014 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6556 Valid, 22898 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:30,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9232 states.
[2023-12-25 14:22:30,063 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9232 to 5167.
[2023-12-25 14:22:30,066 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:30,070 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:30,070 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3451
[2023-12-25 14:22:30,071 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:30,071 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:30,072 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:30,072 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:30,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3453
[2023-12-25 14:22:30,135 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:30,136 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 14:22:30,177 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0
[2023-12-25 14:22:30,364 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:30,364 INFO  L420      AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:30,365 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:30,365 INFO  L85        PathProgramCache]: Analyzing trace with hash -1131909773, now seen corresponding path program 1 times
[2023-12-25 14:22:30,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:30,365 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113263722]
[2023-12-25 14:22:30,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:30,365 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:30,595 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:30,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484373284]
[2023-12-25 14:22:30,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:30,596 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:30,596 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:30,597 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 14:22:30,599 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 14:22:33,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:33,837 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14859 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:22:33,866 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:34,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 176 proven. 347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:34,945 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:34,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2023-12-25 14:22:34,997 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:34,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113263722]
[2023-12-25 14:22:34,997 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:34,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484373284]
[2023-12-25 14:22:34,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [484373284] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:34,997 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:34,998 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:22:34,998 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074489266]
[2023-12-25 14:22:34,998 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:34,999 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:22:35,000 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:35,001 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:22:35,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:35,001 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 628.6) internal successors, (3143), 5 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:35,227 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:35,228 INFO  L93              Difference]: Finished difference Result 18089 states and 29761 transitions.
[2023-12-25 14:22:35,228 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:22:35,229 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 628.6) internal successors, (3143), 5 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3452
[2023-12-25 14:22:35,230 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:35,243 INFO  L225             Difference]: With dead ends: 18089
[2023-12-25 14:22:35,243 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:22:35,249 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6902 GetRequests, 6891 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:35,249 INFO  L413           NwaCegarLoop]: 14639 mSDtfsCounter, 13269 mSDsluCounter, 36330 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13269 SdHoareTripleChecker+Valid, 50969 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:35,250 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13269 Valid, 50969 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:35,257 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:22:35,315 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:22:35,319 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:35,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:35,324 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3452
[2023-12-25 14:22:35,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:35,326 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:35,326 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 628.6) internal successors, (3143), 5 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:35,326 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:35,388 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3454
[2023-12-25 14:22:35,388 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:35,389 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 14:22:35,429 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 14:22:35,613 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:35,614 INFO  L420      AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:35,614 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:35,614 INFO  L85        PathProgramCache]: Analyzing trace with hash 1474380425, now seen corresponding path program 1 times
[2023-12-25 14:22:35,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:35,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269362351]
[2023-12-25 14:22:35,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:35,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:35,830 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:35,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471752809]
[2023-12-25 14:22:35,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:35,831 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:35,831 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:35,832 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 14:22:35,834 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 14:22:38,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:38,843 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14862 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:38,872 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:39,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 172 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:39,745 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:39,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked.
[2023-12-25 14:22:39,785 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:39,785 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269362351]
[2023-12-25 14:22:39,785 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:39,785 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471752809]
[2023-12-25 14:22:39,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [471752809] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:39,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:39,786 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:39,786 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998653231]
[2023-12-25 14:22:39,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:39,787 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:39,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:39,788 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:39,788 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:39,789 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:39,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:39,904 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:39,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:39,905 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3453
[2023-12-25 14:22:39,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:39,913 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:39,913 INFO  L226             Difference]: Without dead ends: 9244
[2023-12-25 14:22:39,916 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6904 GetRequests, 6895 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:39,917 INFO  L413           NwaCegarLoop]: 7938 mSDtfsCounter, 6562 mSDsluCounter, 15000 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6562 SdHoareTripleChecker+Valid, 22938 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:39,917 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6562 Valid, 22938 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:39,921 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9244 states.
[2023-12-25 14:22:39,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 5167.
[2023-12-25 14:22:39,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:39,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:39,968 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3453
[2023-12-25 14:22:39,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:39,969 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:39,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:39,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:40,030 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3455
[2023-12-25 14:22:40,031 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:40,031 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 14:22:40,072 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0
[2023-12-25 14:22:40,247 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:40,247 INFO  L420      AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:40,248 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:40,248 INFO  L85        PathProgramCache]: Analyzing trace with hash 1706430067, now seen corresponding path program 1 times
[2023-12-25 14:22:40,248 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:40,248 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591298005]
[2023-12-25 14:22:40,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:40,249 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:40,469 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:40,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952520928]
[2023-12-25 14:22:40,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:40,470 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:40,470 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:40,471 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 14:22:40,473 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 14:22:43,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:43,568 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14865 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:43,596 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:44,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 168 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:44,559 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:44,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked.
[2023-12-25 14:22:44,598 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:44,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591298005]
[2023-12-25 14:22:44,599 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:44,599 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952520928]
[2023-12-25 14:22:44,599 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [952520928] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:44,599 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:44,600 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:44,600 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478307027]
[2023-12-25 14:22:44,600 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:44,601 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:44,601 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:44,602 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:44,602 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:44,602 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 785.25) internal successors, (3141), 4 states have internal predecessors, (3141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:44,722 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:44,722 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:44,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:44,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 785.25) internal successors, (3141), 4 states have internal predecessors, (3141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3454
[2023-12-25 14:22:44,725 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:44,732 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:44,732 INFO  L226             Difference]: Without dead ends: 9250
[2023-12-25 14:22:44,735 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6906 GetRequests, 6897 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:44,736 INFO  L413           NwaCegarLoop]: 7948 mSDtfsCounter, 6565 mSDsluCounter, 15010 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6565 SdHoareTripleChecker+Valid, 22958 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:44,736 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6565 Valid, 22958 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:44,740 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9250 states.
[2023-12-25 14:22:44,782 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9250 to 5167.
[2023-12-25 14:22:44,785 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:44,789 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:44,789 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3454
[2023-12-25 14:22:44,790 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:44,790 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:44,791 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 785.25) internal successors, (3141), 4 states have internal predecessors, (3141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:44,791 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:44,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3456
[2023-12-25 14:22:44,852 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:44,853 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 14:22:44,892 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 14:22:45,076 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:45,076 INFO  L420      AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:45,076 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:45,077 INFO  L85        PathProgramCache]: Analyzing trace with hash -1253446195, now seen corresponding path program 1 times
[2023-12-25 14:22:45,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:45,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222313970]
[2023-12-25 14:22:45,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:45,077 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:45,281 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:45,281 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315398876]
[2023-12-25 14:22:45,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:45,282 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:45,282 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:45,283 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 14:22:45,285 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 14:22:48,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:48,363 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14868 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:22:48,391 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:49,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 164 proven. 359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:49,212 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:49,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked.
[2023-12-25 14:22:49,251 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:49,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222313970]
[2023-12-25 14:22:49,251 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:49,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315398876]
[2023-12-25 14:22:49,251 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [315398876] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:49,252 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:49,252 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:22:49,252 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591554245]
[2023-12-25 14:22:49,252 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:49,253 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:22:49,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:49,254 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:22:49,254 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:49,255 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:49,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:49,371 INFO  L93              Difference]: Finished difference Result 13671 states and 22493 transitions.
[2023-12-25 14:22:49,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:22:49,372 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3455
[2023-12-25 14:22:49,373 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:49,380 INFO  L225             Difference]: With dead ends: 13671
[2023-12-25 14:22:49,380 INFO  L226             Difference]: Without dead ends: 9256
[2023-12-25 14:22:49,384 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6908 GetRequests, 6899 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:22:49,384 INFO  L413           NwaCegarLoop]: 7958 mSDtfsCounter, 6568 mSDsluCounter, 15020 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6568 SdHoareTripleChecker+Valid, 22978 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:49,384 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6568 Valid, 22978 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:49,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9256 states.
[2023-12-25 14:22:49,427 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 5167.
[2023-12-25 14:22:49,431 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:49,434 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:49,435 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3455
[2023-12-25 14:22:49,436 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:49,436 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:49,436 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 785.0) internal successors, (3140), 4 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:49,436 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:49,497 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3457
[2023-12-25 14:22:49,497 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:49,498 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 14:22:49,538 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 14:22:49,708 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,SelfDestructingSolverStorable101
[2023-12-25 14:22:49,709 INFO  L420      AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:49,709 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:49,709 INFO  L85        PathProgramCache]: Analyzing trace with hash -1946040333, now seen corresponding path program 1 times
[2023-12-25 14:22:49,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:49,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741526446]
[2023-12-25 14:22:49,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:49,709 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:49,906 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:49,906 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192663206]
[2023-12-25 14:22:49,906 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:49,907 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:49,907 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:49,907 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 14:22:49,912 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 14:22:53,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:53,193 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14871 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:22:53,219 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:54,141 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 160 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:54,141 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:54,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked.
[2023-12-25 14:22:54,190 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:54,190 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741526446]
[2023-12-25 14:22:54,190 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:54,190 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192663206]
[2023-12-25 14:22:54,190 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192663206] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:54,190 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:54,191 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:22:54,191 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171134935]
[2023-12-25 14:22:54,191 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:54,192 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:22:54,192 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:54,193 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:22:54,193 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:54,194 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 627.8) internal successors, (3139), 5 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:54,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:54,407 INFO  L93              Difference]: Finished difference Result 18068 states and 29726 transitions.
[2023-12-25 14:22:54,407 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:22:54,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 627.8) internal successors, (3139), 5 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3456
[2023-12-25 14:22:54,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:54,421 INFO  L225             Difference]: With dead ends: 18068
[2023-12-25 14:22:54,421 INFO  L226             Difference]: Without dead ends: 13659
[2023-12-25 14:22:54,427 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6910 GetRequests, 6899 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:54,427 INFO  L413           NwaCegarLoop]: 14679 mSDtfsCounter, 13281 mSDsluCounter, 36410 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13281 SdHoareTripleChecker+Valid, 51089 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:54,427 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13281 Valid, 51089 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:54,435 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13659 states.
[2023-12-25 14:22:54,491 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 5167.
[2023-12-25 14:22:54,495 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:54,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:54,499 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3456
[2023-12-25 14:22:54,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:54,500 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:54,501 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 627.8) internal successors, (3139), 5 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:54,501 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:54,561 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3458
[2023-12-25 14:22:54,562 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:54,562 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 14:22:54,602 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 14:22:54,767 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,SelfDestructingSolverStorable102
[2023-12-25 14:22:54,767 INFO  L420      AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:54,768 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:54,768 INFO  L85        PathProgramCache]: Analyzing trace with hash 1712412049, now seen corresponding path program 1 times
[2023-12-25 14:22:54,768 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:54,768 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481476098]
[2023-12-25 14:22:54,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:54,768 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:54,983 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:54,983 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326040115]
[2023-12-25 14:22:54,983 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:54,983 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:54,984 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:54,985 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 14:22:54,986 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 14:22:57,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:22:58,081 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14874 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:22:58,111 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:22:58,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 154 proven. 369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:22:58,918 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:22:58,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked.
[2023-12-25 14:22:58,971 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:22:58,971 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481476098]
[2023-12-25 14:22:58,971 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:22:58,971 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326040115]
[2023-12-25 14:22:58,971 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326040115] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:22:58,971 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:22:58,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:22:58,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829200182]
[2023-12-25 14:22:58,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:22:58,973 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:22:58,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:22:58,984 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:22:58,984 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:58,984 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 627.4) internal successors, (3137), 5 states have internal predecessors, (3137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:59,203 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:22:59,203 INFO  L93              Difference]: Finished difference Result 18056 states and 29706 transitions.
[2023-12-25 14:22:59,204 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:22:59,204 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 627.4) internal successors, (3137), 5 states have internal predecessors, (3137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3457
[2023-12-25 14:22:59,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:22:59,218 INFO  L225             Difference]: With dead ends: 18056
[2023-12-25 14:22:59,219 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:22:59,226 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6912 GetRequests, 6901 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:22:59,226 INFO  L413           NwaCegarLoop]: 14694 mSDtfsCounter, 13287 mSDsluCounter, 36440 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13287 SdHoareTripleChecker+Valid, 51134 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:22:59,226 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13287 Valid, 51134 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:22:59,235 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:22:59,293 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:22:59,297 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:59,301 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:22:59,301 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3457
[2023-12-25 14:22:59,303 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:22:59,303 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:22:59,303 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 627.4) internal successors, (3137), 5 states have internal predecessors, (3137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:22:59,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:22:59,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3459
[2023-12-25 14:22:59,365 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:22:59,366 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 14:22:59,410 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 14:22:59,573 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,SelfDestructingSolverStorable103
[2023-12-25 14:22:59,574 INFO  L420      AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:22:59,574 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:22:59,574 INFO  L85        PathProgramCache]: Analyzing trace with hash 1060846091, now seen corresponding path program 1 times
[2023-12-25 14:22:59,575 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:22:59,575 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639140486]
[2023-12-25 14:22:59,575 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:59,575 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:22:59,773 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:22:59,774 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921683946]
[2023-12-25 14:22:59,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:22:59,774 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:22:59,774 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:22:59,775 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 14:22:59,777 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 14:23:02,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:02,792 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14878 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:23:02,820 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:03,800 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 150 proven. 373 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:03,800 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:03,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked.
[2023-12-25 14:23:03,851 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:03,851 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639140486]
[2023-12-25 14:23:03,851 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:03,851 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921683946]
[2023-12-25 14:23:03,851 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [921683946] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:03,851 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:03,852 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:03,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074570101]
[2023-12-25 14:23:03,852 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:03,853 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:03,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:03,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:03,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:03,855 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 627.2) internal successors, (3136), 5 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:04,071 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:04,071 INFO  L93              Difference]: Finished difference Result 18050 states and 29696 transitions.
[2023-12-25 14:23:04,072 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:04,072 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 627.2) internal successors, (3136), 5 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3458
[2023-12-25 14:23:04,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:04,087 INFO  L225             Difference]: With dead ends: 18050
[2023-12-25 14:23:04,087 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:04,094 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6914 GetRequests, 6903 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:04,094 INFO  L413           NwaCegarLoop]: 14704 mSDtfsCounter, 13290 mSDsluCounter, 36460 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13290 SdHoareTripleChecker+Valid, 51164 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:04,094 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13290 Valid, 51164 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:04,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:04,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:04,159 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:04,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:04,163 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3458
[2023-12-25 14:23:04,164 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:04,164 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:04,165 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 627.2) internal successors, (3136), 5 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:04,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:04,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3460
[2023-12-25 14:23:04,328 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:04,329 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:04,373 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0
[2023-12-25 14:23:04,556 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:04,556 INFO  L420      AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:04,557 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:04,557 INFO  L85        PathProgramCache]: Analyzing trace with hash 1011607123, now seen corresponding path program 1 times
[2023-12-25 14:23:04,557 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:04,557 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755657370]
[2023-12-25 14:23:04,558 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:04,558 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:04,768 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:04,769 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304990481]
[2023-12-25 14:23:04,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:04,769 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:04,770 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:04,770 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 14:23:04,793 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 14:23:07,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:07,867 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14881 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:07,895 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:08,809 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 146 proven. 377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:08,809 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:08,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked.
[2023-12-25 14:23:08,859 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:08,859 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755657370]
[2023-12-25 14:23:08,859 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:08,859 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304990481]
[2023-12-25 14:23:08,859 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304990481] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:08,859 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:08,860 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:08,860 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327521845]
[2023-12-25 14:23:08,860 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:08,861 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:08,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:08,862 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:08,862 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:08,863 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 627.0) internal successors, (3135), 5 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:09,074 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:09,075 INFO  L93              Difference]: Finished difference Result 18044 states and 29686 transitions.
[2023-12-25 14:23:09,075 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:09,076 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 627.0) internal successors, (3135), 5 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3459
[2023-12-25 14:23:09,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:09,089 INFO  L225             Difference]: With dead ends: 18044
[2023-12-25 14:23:09,090 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:09,095 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6916 GetRequests, 6905 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:09,095 INFO  L413           NwaCegarLoop]: 14714 mSDtfsCounter, 13293 mSDsluCounter, 36480 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13293 SdHoareTripleChecker+Valid, 51194 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:09,095 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13293 Valid, 51194 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:09,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:09,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:09,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:09,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:09,164 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3459
[2023-12-25 14:23:09,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:09,165 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:09,165 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 627.0) internal successors, (3135), 5 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:09,166 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:09,226 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3461
[2023-12-25 14:23:09,226 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:09,227 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 14:23:09,268 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 14:23:09,448 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:09,448 INFO  L420      AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:09,449 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:09,449 INFO  L85        PathProgramCache]: Analyzing trace with hash -14938359, now seen corresponding path program 1 times
[2023-12-25 14:23:09,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:09,449 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021610095]
[2023-12-25 14:23:09,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:09,449 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:09,649 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:09,649 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683182973]
[2023-12-25 14:23:09,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:09,650 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:09,650 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:09,651 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 14:23:09,672 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 14:23:12,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:12,815 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14885 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:12,845 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:13,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 142 proven. 381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:13,836 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:13,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked.
[2023-12-25 14:23:13,886 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:13,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021610095]
[2023-12-25 14:23:13,886 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:13,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683182973]
[2023-12-25 14:23:13,887 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683182973] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:13,887 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:13,887 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:13,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797543411]
[2023-12-25 14:23:13,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:13,888 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:13,889 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:13,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:13,890 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:13,890 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 626.8) internal successors, (3134), 5 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:14,218 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:14,218 INFO  L93              Difference]: Finished difference Result 18038 states and 29676 transitions.
[2023-12-25 14:23:14,218 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:14,219 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 626.8) internal successors, (3134), 5 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3460
[2023-12-25 14:23:14,221 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:14,230 INFO  L225             Difference]: With dead ends: 18038
[2023-12-25 14:23:14,230 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:14,232 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6918 GetRequests, 6907 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:14,233 INFO  L413           NwaCegarLoop]: 14724 mSDtfsCounter, 13296 mSDsluCounter, 36500 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13296 SdHoareTripleChecker+Valid, 51224 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:14,233 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13296 Valid, 51224 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:14,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:14,287 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:14,290 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:14,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:14,294 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3460
[2023-12-25 14:23:14,295 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:14,295 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:14,296 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 626.8) internal successors, (3134), 5 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:14,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:14,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3462
[2023-12-25 14:23:14,357 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:14,357 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 14:23:14,397 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 14:23:14,559 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,SelfDestructingSolverStorable106
[2023-12-25 14:23:14,559 INFO  L420      AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:14,559 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:14,559 INFO  L85        PathProgramCache]: Analyzing trace with hash -1655138027, now seen corresponding path program 1 times
[2023-12-25 14:23:14,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:14,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360505098]
[2023-12-25 14:23:14,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:14,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:14,782 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:14,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124306573]
[2023-12-25 14:23:14,783 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:14,784 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:14,784 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:14,785 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 14:23:14,787 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 14:23:17,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:17,971 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14888 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:23:18,005 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:18,786 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 138 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:18,786 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:18,837 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked.
[2023-12-25 14:23:18,837 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:18,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360505098]
[2023-12-25 14:23:18,837 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:18,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124306573]
[2023-12-25 14:23:18,837 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124306573] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:18,838 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:18,838 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:18,838 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697772725]
[2023-12-25 14:23:18,838 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:18,840 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:18,840 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:18,841 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:18,841 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:18,841 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 626.6) internal successors, (3133), 5 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:19,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:19,067 INFO  L93              Difference]: Finished difference Result 18032 states and 29666 transitions.
[2023-12-25 14:23:19,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:19,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 626.6) internal successors, (3133), 5 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3461
[2023-12-25 14:23:19,070 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:19,083 INFO  L225             Difference]: With dead ends: 18032
[2023-12-25 14:23:19,083 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:19,089 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6920 GetRequests, 6909 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:19,090 INFO  L413           NwaCegarLoop]: 14734 mSDtfsCounter, 13299 mSDsluCounter, 36520 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13299 SdHoareTripleChecker+Valid, 51254 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:19,090 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13299 Valid, 51254 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:19,099 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:19,157 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:19,161 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:19,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:19,166 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3461
[2023-12-25 14:23:19,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:19,167 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:19,167 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 626.6) internal successors, (3133), 5 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:19,168 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:19,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3463
[2023-12-25 14:23:19,229 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:19,230 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 14:23:19,274 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0
[2023-12-25 14:23:19,445 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107
[2023-12-25 14:23:19,446 INFO  L420      AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:19,446 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:19,446 INFO  L85        PathProgramCache]: Analyzing trace with hash -1649810937, now seen corresponding path program 1 times
[2023-12-25 14:23:19,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:19,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847354794]
[2023-12-25 14:23:19,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:19,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:19,751 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:19,751 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163479600]
[2023-12-25 14:23:19,752 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:19,752 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:19,752 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:19,753 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 14:23:19,755 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 14:23:22,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:22,887 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14892 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:22,915 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:23,964 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 134 proven. 389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:23,964 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:24,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked.
[2023-12-25 14:23:24,030 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:24,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847354794]
[2023-12-25 14:23:24,030 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:24,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163479600]
[2023-12-25 14:23:24,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [163479600] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:24,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:24,031 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:24,031 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156127321]
[2023-12-25 14:23:24,031 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:24,033 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:24,033 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:24,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:24,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:24,034 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 626.4) internal successors, (3132), 5 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:24,265 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:24,265 INFO  L93              Difference]: Finished difference Result 18026 states and 29656 transitions.
[2023-12-25 14:23:24,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:24,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 626.4) internal successors, (3132), 5 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3462
[2023-12-25 14:23:24,268 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:24,281 INFO  L225             Difference]: With dead ends: 18026
[2023-12-25 14:23:24,282 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:24,288 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6922 GetRequests, 6911 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:24,288 INFO  L413           NwaCegarLoop]: 14744 mSDtfsCounter, 13302 mSDsluCounter, 36540 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13302 SdHoareTripleChecker+Valid, 51284 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:24,289 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13302 Valid, 51284 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:24,299 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:24,364 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:24,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:24,374 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:24,374 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3462
[2023-12-25 14:23:24,376 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:24,376 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:24,377 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 626.4) internal successors, (3132), 5 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:24,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:24,439 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3464
[2023-12-25 14:23:24,439 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:24,440 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 14:23:24,486 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 14:23:24,656 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:24,656 INFO  L420      AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:24,657 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:24,657 INFO  L85        PathProgramCache]: Analyzing trace with hash 1817841111, now seen corresponding path program 1 times
[2023-12-25 14:23:24,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:24,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050376863]
[2023-12-25 14:23:24,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:24,657 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:24,869 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:24,869 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617752711]
[2023-12-25 14:23:24,870 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:24,870 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:24,870 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:24,876 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 14:23:24,901 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 14:23:27,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:28,059 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14895 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:28,087 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:29,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 130 proven. 393 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:29,020 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:29,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked.
[2023-12-25 14:23:29,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:29,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050376863]
[2023-12-25 14:23:29,070 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:29,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617752711]
[2023-12-25 14:23:29,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [617752711] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:29,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:29,071 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:29,071 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651665463]
[2023-12-25 14:23:29,071 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:29,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:29,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:29,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:29,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:29,074 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 626.2) internal successors, (3131), 5 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:29,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:29,293 INFO  L93              Difference]: Finished difference Result 18020 states and 29646 transitions.
[2023-12-25 14:23:29,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:29,294 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 626.2) internal successors, (3131), 5 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3463
[2023-12-25 14:23:29,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:29,307 INFO  L225             Difference]: With dead ends: 18020
[2023-12-25 14:23:29,307 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:29,314 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6924 GetRequests, 6913 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:29,315 INFO  L413           NwaCegarLoop]: 14754 mSDtfsCounter, 13305 mSDsluCounter, 36560 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13305 SdHoareTripleChecker+Valid, 51314 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:29,315 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13305 Valid, 51314 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:29,323 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:29,387 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:29,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:29,396 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:29,396 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3463
[2023-12-25 14:23:29,398 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:29,398 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:29,398 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 626.2) internal successors, (3131), 5 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:29,398 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:29,461 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3465
[2023-12-25 14:23:29,461 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:29,462 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 14:23:29,507 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 14:23:29,676 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,SelfDestructingSolverStorable109
[2023-12-25 14:23:29,677 INFO  L420      AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:29,677 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:29,677 INFO  L85        PathProgramCache]: Analyzing trace with hash 2116948741, now seen corresponding path program 1 times
[2023-12-25 14:23:29,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:29,677 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335496254]
[2023-12-25 14:23:29,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:29,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:29,900 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:29,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727099137]
[2023-12-25 14:23:29,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:29,901 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:29,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:29,902 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 14:23:29,904 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 14:23:33,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:33,096 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14899 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:33,122 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:34,011 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 126 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:34,011 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:34,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked.
[2023-12-25 14:23:34,059 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:34,059 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335496254]
[2023-12-25 14:23:34,059 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:34,059 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727099137]
[2023-12-25 14:23:34,059 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727099137] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:34,059 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:34,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:34,059 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498486709]
[2023-12-25 14:23:34,059 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:34,060 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:34,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:34,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:34,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:34,062 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 626.0) internal successors, (3130), 5 states have internal predecessors, (3130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:34,274 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:34,274 INFO  L93              Difference]: Finished difference Result 18014 states and 29636 transitions.
[2023-12-25 14:23:34,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:34,275 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 626.0) internal successors, (3130), 5 states have internal predecessors, (3130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3464
[2023-12-25 14:23:34,277 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:34,290 INFO  L225             Difference]: With dead ends: 18014
[2023-12-25 14:23:34,290 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:34,296 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6926 GetRequests, 6915 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:34,296 INFO  L413           NwaCegarLoop]: 14764 mSDtfsCounter, 13308 mSDsluCounter, 36580 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13308 SdHoareTripleChecker+Valid, 51344 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:34,297 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13308 Valid, 51344 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:34,304 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:34,356 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:34,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:34,363 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:34,363 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3464
[2023-12-25 14:23:34,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:34,364 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:34,365 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 626.0) internal successors, (3130), 5 states have internal predecessors, (3130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:34,365 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:34,426 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3466
[2023-12-25 14:23:34,426 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:34,426 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 14:23:34,467 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0
[2023-12-25 14:23:34,652 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:34,653 INFO  L420      AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:34,653 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:34,653 INFO  L85        PathProgramCache]: Analyzing trace with hash 699589785, now seen corresponding path program 1 times
[2023-12-25 14:23:34,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:34,653 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605867980]
[2023-12-25 14:23:34,653 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:34,653 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:34,847 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:34,847 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72398667]
[2023-12-25 14:23:34,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:34,848 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:34,848 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:34,849 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 14:23:34,851 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 14:23:37,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:38,038 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14902 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:38,070 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:39,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 122 proven. 401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:39,031 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:39,081 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked.
[2023-12-25 14:23:39,081 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:39,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605867980]
[2023-12-25 14:23:39,081 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:39,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72398667]
[2023-12-25 14:23:39,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [72398667] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:39,081 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:39,082 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:39,082 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032236485]
[2023-12-25 14:23:39,082 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:39,083 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:39,083 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:39,085 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:39,085 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:39,085 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 625.8) internal successors, (3129), 5 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:39,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:39,299 INFO  L93              Difference]: Finished difference Result 18008 states and 29626 transitions.
[2023-12-25 14:23:39,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:39,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 625.8) internal successors, (3129), 5 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3465
[2023-12-25 14:23:39,302 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:39,313 INFO  L225             Difference]: With dead ends: 18008
[2023-12-25 14:23:39,314 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:39,319 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6928 GetRequests, 6917 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:39,319 INFO  L413           NwaCegarLoop]: 14774 mSDtfsCounter, 13311 mSDsluCounter, 36600 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13311 SdHoareTripleChecker+Valid, 51374 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:39,319 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13311 Valid, 51374 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:39,326 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:39,378 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:39,381 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:39,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:39,385 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3465
[2023-12-25 14:23:39,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:39,386 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:39,387 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 625.8) internal successors, (3129), 5 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:39,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:39,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3467
[2023-12-25 14:23:39,448 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:39,449 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 14:23:39,490 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0
[2023-12-25 14:23:39,661 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,SelfDestructingSolverStorable111
[2023-12-25 14:23:39,662 INFO  L420      AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:39,662 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:39,662 INFO  L85        PathProgramCache]: Analyzing trace with hash 1286734339, now seen corresponding path program 1 times
[2023-12-25 14:23:39,662 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:39,662 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281896094]
[2023-12-25 14:23:39,662 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:39,662 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:39,853 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:39,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347524780]
[2023-12-25 14:23:39,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:39,853 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:39,854 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:39,854 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 14:23:39,856 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 14:23:43,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:43,166 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14906 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:43,195 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:43,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 118 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:43,947 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:43,996 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked.
[2023-12-25 14:23:43,996 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:43,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281896094]
[2023-12-25 14:23:43,997 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:43,997 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347524780]
[2023-12-25 14:23:43,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [347524780] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:43,997 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:43,997 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:43,997 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189448441]
[2023-12-25 14:23:43,997 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:43,999 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:43,999 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:44,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:44,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:44,000 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 625.6) internal successors, (3128), 5 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:44,222 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:44,222 INFO  L93              Difference]: Finished difference Result 18002 states and 29616 transitions.
[2023-12-25 14:23:44,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:44,223 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 625.6) internal successors, (3128), 5 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3466
[2023-12-25 14:23:44,225 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:44,238 INFO  L225             Difference]: With dead ends: 18002
[2023-12-25 14:23:44,239 INFO  L226             Difference]: Without dead ends: 13656
[2023-12-25 14:23:44,245 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6930 GetRequests, 6919 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:44,246 INFO  L413           NwaCegarLoop]: 14784 mSDtfsCounter, 13314 mSDsluCounter, 36620 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13314 SdHoareTripleChecker+Valid, 51404 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:44,246 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13314 Valid, 51404 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:44,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13656 states.
[2023-12-25 14:23:44,313 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 5167.
[2023-12-25 14:23:44,316 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:44,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:44,320 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3466
[2023-12-25 14:23:44,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:44,321 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:44,322 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 625.6) internal successors, (3128), 5 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:44,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:44,383 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3468
[2023-12-25 14:23:44,383 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:44,384 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 14:23:44,420 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 14:23:44,608 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,SelfDestructingSolverStorable112
[2023-12-25 14:23:44,608 INFO  L420      AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:44,609 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:44,609 INFO  L85        PathProgramCache]: Analyzing trace with hash 1158004059, now seen corresponding path program 1 times
[2023-12-25 14:23:44,609 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:44,609 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238557404]
[2023-12-25 14:23:44,609 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:44,609 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:44,812 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:44,812 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304419454]
[2023-12-25 14:23:44,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:44,813 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:44,813 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:44,814 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 14:23:44,815 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 14:23:47,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:48,029 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14909 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:23:48,059 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:49,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 114 proven. 409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:49,089 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:49,139 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked.
[2023-12-25 14:23:49,139 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:49,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238557404]
[2023-12-25 14:23:49,139 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:49,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304419454]
[2023-12-25 14:23:49,139 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304419454] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:49,139 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:49,140 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:49,140 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009445180]
[2023-12-25 14:23:49,140 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:49,141 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:49,141 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:49,142 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:49,142 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:49,143 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 625.4) internal successors, (3127), 5 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:49,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:49,358 INFO  L93              Difference]: Finished difference Result 18001 states and 29613 transitions.
[2023-12-25 14:23:49,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:49,359 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 625.4) internal successors, (3127), 5 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3467
[2023-12-25 14:23:49,360 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:49,371 INFO  L225             Difference]: With dead ends: 18001
[2023-12-25 14:23:49,371 INFO  L226             Difference]: Without dead ends: 13661
[2023-12-25 14:23:49,377 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6932 GetRequests, 6921 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:49,377 INFO  L413           NwaCegarLoop]: 14794 mSDtfsCounter, 13317 mSDsluCounter, 36640 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13317 SdHoareTripleChecker+Valid, 51434 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:49,377 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13317 Valid, 51434 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:49,384 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13661 states.
[2023-12-25 14:23:49,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13661 to 5167.
[2023-12-25 14:23:49,443 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:49,447 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:49,447 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3467
[2023-12-25 14:23:49,448 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:49,448 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:49,449 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 625.4) internal successors, (3127), 5 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:49,449 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:49,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3469
[2023-12-25 14:23:49,634 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:49,635 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 14:23:49,674 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 14:23:49,848 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113,70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:49,848 INFO  L420      AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:49,849 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:49,849 INFO  L85        PathProgramCache]: Analyzing trace with hash 1811877633, now seen corresponding path program 1 times
[2023-12-25 14:23:49,849 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:49,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850246153]
[2023-12-25 14:23:49,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:49,850 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:50,045 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:50,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021003207]
[2023-12-25 14:23:50,046 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:50,047 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:50,047 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:50,048 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 14:23:50,049 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 14:23:53,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:53,133 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14913 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:23:53,162 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:54,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 104 proven. 419 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:54,080 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:54,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked.
[2023-12-25 14:23:54,129 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:54,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850246153]
[2023-12-25 14:23:54,130 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:54,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021003207]
[2023-12-25 14:23:54,130 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021003207] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:54,130 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:54,130 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:23:54,130 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569713828]
[2023-12-25 14:23:54,130 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:54,132 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:23:54,132 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:54,133 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:23:54,133 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:54,133 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 624.6) internal successors, (3123), 5 states have internal predecessors, (3123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:54,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:54,361 INFO  L93              Difference]: Finished difference Result 18008 states and 29626 transitions.
[2023-12-25 14:23:54,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:23:54,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 624.6) internal successors, (3123), 5 states have internal predecessors, (3123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3468
[2023-12-25 14:23:54,364 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:54,376 INFO  L225             Difference]: With dead ends: 18008
[2023-12-25 14:23:54,376 INFO  L226             Difference]: Without dead ends: 13669
[2023-12-25 14:23:54,381 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6934 GetRequests, 6923 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:23:54,382 INFO  L413           NwaCegarLoop]: 14813 mSDtfsCounter, 13326 mSDsluCounter, 36678 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13326 SdHoareTripleChecker+Valid, 51491 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:54,382 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13326 Valid, 51491 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:54,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13669 states.
[2023-12-25 14:23:54,444 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13669 to 5167.
[2023-12-25 14:23:54,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:54,452 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:54,452 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3468
[2023-12-25 14:23:54,453 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:54,453 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:54,454 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 624.6) internal successors, (3123), 5 states have internal predecessors, (3123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:54,454 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:54,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3470
[2023-12-25 14:23:54,516 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:54,516 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 14:23:54,554 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 14:23:54,744 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114
[2023-12-25 14:23:54,744 INFO  L420      AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:54,745 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:54,745 INFO  L85        PathProgramCache]: Analyzing trace with hash -1230936325, now seen corresponding path program 1 times
[2023-12-25 14:23:54,745 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:54,745 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55258739]
[2023-12-25 14:23:54,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:54,745 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:54,948 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:54,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002472729]
[2023-12-25 14:23:54,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:54,949 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:54,949 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:54,950 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 14:23:54,950 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 14:23:58,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:23:58,182 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14916 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:23:58,209 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:23:59,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 100 proven. 423 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:23:59,053 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:23:59,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked.
[2023-12-25 14:23:59,239 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:23:59,239 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55258739]
[2023-12-25 14:23:59,240 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:23:59,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002472729]
[2023-12-25 14:23:59,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002472729] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:23:59,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:23:59,240 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:23:59,241 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806252725]
[2023-12-25 14:23:59,241 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:23:59,242 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:23:59,242 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:23:59,243 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:23:59,243 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:23:59,244 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 780.5) internal successors, (3122), 4 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:59,366 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:23:59,367 INFO  L93              Difference]: Finished difference Result 13689 states and 22523 transitions.
[2023-12-25 14:23:59,367 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:23:59,368 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 780.5) internal successors, (3122), 4 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3469
[2023-12-25 14:23:59,370 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:23:59,377 INFO  L225             Difference]: With dead ends: 13689
[2023-12-25 14:23:59,377 INFO  L226             Difference]: Without dead ends: 9350
[2023-12-25 14:23:59,381 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6936 GetRequests, 6927 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:23:59,390 INFO  L413           NwaCegarLoop]: 8109 mSDtfsCounter, 6619 mSDsluCounter, 15171 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6619 SdHoareTripleChecker+Valid, 23280 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:23:59,390 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6619 Valid, 23280 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:23:59,396 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9350 states.
[2023-12-25 14:23:59,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 5167.
[2023-12-25 14:23:59,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:59,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:23:59,448 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3469
[2023-12-25 14:23:59,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:23:59,450 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:23:59,450 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 780.5) internal successors, (3122), 4 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:23:59,450 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:23:59,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3471
[2023-12-25 14:23:59,513 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:23:59,513 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 14:23:59,554 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 14:23:59,732 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:59,732 INFO  L420      AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:23:59,733 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:23:59,733 INFO  L85        PathProgramCache]: Analyzing trace with hash 122612865, now seen corresponding path program 1 times
[2023-12-25 14:23:59,733 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:23:59,733 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595841232]
[2023-12-25 14:23:59,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:59,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:23:59,940 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:23:59,940 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857356672]
[2023-12-25 14:23:59,941 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:23:59,941 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:23:59,941 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:23:59,942 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 14:23:59,942 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 14:24:02,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:02,985 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14919 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:24:03,013 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:03,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 96 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:03,941 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:04,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked.
[2023-12-25 14:24:04,019 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:04,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595841232]
[2023-12-25 14:24:04,019 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:04,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857356672]
[2023-12-25 14:24:04,019 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857356672] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:04,019 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:04,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:24:04,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776152750]
[2023-12-25 14:24:04,027 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:04,028 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:24:04,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:04,029 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:24:04,029 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:04,030 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 624.2) internal successors, (3121), 5 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:04,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:04,257 INFO  L93              Difference]: Finished difference Result 18020 states and 29646 transitions.
[2023-12-25 14:24:04,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:24:04,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 624.2) internal successors, (3121), 5 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3470
[2023-12-25 14:24:04,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:04,273 INFO  L225             Difference]: With dead ends: 18020
[2023-12-25 14:24:04,273 INFO  L226             Difference]: Without dead ends: 13681
[2023-12-25 14:24:04,278 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6938 GetRequests, 6927 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:04,279 INFO  L413           NwaCegarLoop]: 14827 mSDtfsCounter, 13332 mSDsluCounter, 36706 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13332 SdHoareTripleChecker+Valid, 51533 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:04,279 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13332 Valid, 51533 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:04,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13681 states.
[2023-12-25 14:24:04,341 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13681 to 5167.
[2023-12-25 14:24:04,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:04,349 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:04,349 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3470
[2023-12-25 14:24:04,350 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:04,350 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:04,351 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 624.2) internal successors, (3121), 5 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:04,351 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:04,413 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3472
[2023-12-25 14:24:04,413 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:04,414 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 14:24:04,455 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0
[2023-12-25 14:24:04,614 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,SelfDestructingSolverStorable116
[2023-12-25 14:24:04,615 INFO  L420      AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:04,615 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:04,615 INFO  L85        PathProgramCache]: Analyzing trace with hash 1392890815, now seen corresponding path program 1 times
[2023-12-25 14:24:04,615 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:04,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33449484]
[2023-12-25 14:24:04,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:04,616 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:04,808 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:04,808 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793514614]
[2023-12-25 14:24:04,809 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:04,809 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:04,809 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:04,810 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 14:24:04,810 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 14:24:07,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:07,872 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14922 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:24:07,900 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:08,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 92 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:08,939 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:08,976 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked.
[2023-12-25 14:24:08,976 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:08,976 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33449484]
[2023-12-25 14:24:08,976 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:08,977 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793514614]
[2023-12-25 14:24:08,977 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [793514614] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:08,977 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:08,977 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:24:08,977 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803026434]
[2023-12-25 14:24:08,977 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:08,978 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:24:08,978 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:08,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:24:08,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:08,980 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 780.0) internal successors, (3120), 4 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:09,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:09,104 INFO  L93              Difference]: Finished difference Result 13701 states and 22543 transitions.
[2023-12-25 14:24:09,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:24:09,105 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 780.0) internal successors, (3120), 4 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3471
[2023-12-25 14:24:09,107 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:09,113 INFO  L225             Difference]: With dead ends: 13701
[2023-12-25 14:24:09,113 INFO  L226             Difference]: Without dead ends: 9362
[2023-12-25 14:24:09,117 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6940 GetRequests, 6931 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:09,117 INFO  L413           NwaCegarLoop]: 8123 mSDtfsCounter, 6625 mSDsluCounter, 15185 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6625 SdHoareTripleChecker+Valid, 23308 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:09,118 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6625 Valid, 23308 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:09,122 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9362 states.
[2023-12-25 14:24:09,167 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9362 to 5167.
[2023-12-25 14:24:09,171 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:09,174 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:09,175 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3471
[2023-12-25 14:24:09,176 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:09,176 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:09,177 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 780.0) internal successors, (3120), 4 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:09,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:09,238 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3473
[2023-12-25 14:24:09,238 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:09,239 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 14:24:09,275 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 14:24:09,464 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:09,464 INFO  L420      AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:09,464 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:09,465 INFO  L85        PathProgramCache]: Analyzing trace with hash 96830081, now seen corresponding path program 1 times
[2023-12-25 14:24:09,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:09,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050100413]
[2023-12-25 14:24:09,465 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:09,465 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:09,657 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:09,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349532098]
[2023-12-25 14:24:09,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:09,658 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:09,658 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:09,659 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 14:24:09,662 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 14:24:12,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:12,721 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14925 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:24:12,749 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:13,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 84 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:13,648 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:13,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked.
[2023-12-25 14:24:13,687 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:13,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050100413]
[2023-12-25 14:24:13,687 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:13,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349532098]
[2023-12-25 14:24:13,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [349532098] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:13,687 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:13,688 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:24:13,688 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006545398]
[2023-12-25 14:24:13,688 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:13,689 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:24:13,689 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:13,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:24:13,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:13,691 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 779.25) internal successors, (3117), 4 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:13,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:13,815 INFO  L93              Difference]: Finished difference Result 13713 states and 22563 transitions.
[2023-12-25 14:24:13,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:24:13,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 779.25) internal successors, (3117), 4 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3472
[2023-12-25 14:24:13,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:13,824 INFO  L225             Difference]: With dead ends: 13713
[2023-12-25 14:24:13,824 INFO  L226             Difference]: Without dead ends: 9374
[2023-12-25 14:24:13,828 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6942 GetRequests, 6933 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:13,828 INFO  L413           NwaCegarLoop]: 8137 mSDtfsCounter, 6631 mSDsluCounter, 15199 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6631 SdHoareTripleChecker+Valid, 23336 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:13,828 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6631 Valid, 23336 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:13,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9374 states.
[2023-12-25 14:24:13,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 5167.
[2023-12-25 14:24:13,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:13,885 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:13,885 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3472
[2023-12-25 14:24:13,886 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:13,886 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:13,887 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 779.25) internal successors, (3117), 4 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:13,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:13,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3474
[2023-12-25 14:24:13,948 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:13,948 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 14:24:13,983 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 14:24:14,160 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:14,160 INFO  L420      AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:14,161 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:14,161 INFO  L85        PathProgramCache]: Analyzing trace with hash -2079680829, now seen corresponding path program 1 times
[2023-12-25 14:24:14,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:14,161 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249497258]
[2023-12-25 14:24:14,161 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:14,161 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:14,445 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:14,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279571286]
[2023-12-25 14:24:14,446 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:14,446 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:14,446 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:14,447 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 14:24:14,448 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 14:24:17,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:17,509 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14928 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:24:17,537 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:18,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 80 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:18,452 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:18,502 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked.
[2023-12-25 14:24:18,502 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:18,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249497258]
[2023-12-25 14:24:18,502 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:18,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279571286]
[2023-12-25 14:24:18,502 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [279571286] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:18,503 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:18,503 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:24:18,503 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119067449]
[2023-12-25 14:24:18,503 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:18,504 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:24:18,505 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:18,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:24:18,506 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:18,506 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 623.2) internal successors, (3116), 5 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:18,725 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:18,725 INFO  L93              Difference]: Finished difference Result 18044 states and 29686 transitions.
[2023-12-25 14:24:18,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:24:18,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 623.2) internal successors, (3116), 5 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3473
[2023-12-25 14:24:18,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:18,740 INFO  L225             Difference]: With dead ends: 18044
[2023-12-25 14:24:18,740 INFO  L226             Difference]: Without dead ends: 13705
[2023-12-25 14:24:18,745 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6944 GetRequests, 6933 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:18,746 INFO  L413           NwaCegarLoop]: 14855 mSDtfsCounter, 13344 mSDsluCounter, 36762 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13344 SdHoareTripleChecker+Valid, 51617 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:18,746 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13344 Valid, 51617 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:18,752 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13705 states.
[2023-12-25 14:24:18,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13705 to 5167.
[2023-12-25 14:24:18,813 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:18,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:18,817 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3473
[2023-12-25 14:24:18,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:18,818 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:18,819 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 623.2) internal successors, (3116), 5 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:18,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:18,881 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3475
[2023-12-25 14:24:18,881 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:18,882 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 14:24:18,918 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 14:24:19,096 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,SelfDestructingSolverStorable119
[2023-12-25 14:24:19,096 INFO  L420      AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:19,097 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:19,097 INFO  L85        PathProgramCache]: Analyzing trace with hash -319663043, now seen corresponding path program 1 times
[2023-12-25 14:24:19,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:19,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115802807]
[2023-12-25 14:24:19,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:19,097 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:19,317 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:19,317 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249453615]
[2023-12-25 14:24:19,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:19,318 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:19,318 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:19,319 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 14:24:19,321 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 14:24:22,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:22,549 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14931 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:24:22,581 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:23,486 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 76 proven. 447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:23,486 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:23,525 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked.
[2023-12-25 14:24:23,525 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:23,525 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115802807]
[2023-12-25 14:24:23,525 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:23,525 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249453615]
[2023-12-25 14:24:23,525 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [249453615] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:23,526 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:23,526 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:24:23,526 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305786950]
[2023-12-25 14:24:23,526 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:23,527 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:24:23,527 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:23,528 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:24:23,529 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:23,529 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 778.75) internal successors, (3115), 4 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:23,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:23,651 INFO  L93              Difference]: Finished difference Result 13725 states and 22583 transitions.
[2023-12-25 14:24:23,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:24:23,652 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 778.75) internal successors, (3115), 4 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3474
[2023-12-25 14:24:23,654 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:23,660 INFO  L225             Difference]: With dead ends: 13725
[2023-12-25 14:24:23,661 INFO  L226             Difference]: Without dead ends: 9386
[2023-12-25 14:24:23,664 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6946 GetRequests, 6937 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:23,664 INFO  L413           NwaCegarLoop]: 8151 mSDtfsCounter, 6637 mSDsluCounter, 15213 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6637 SdHoareTripleChecker+Valid, 23364 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:23,664 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6637 Valid, 23364 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:23,668 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9386 states.
[2023-12-25 14:24:23,712 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9386 to 5167.
[2023-12-25 14:24:23,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:23,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:23,719 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3474
[2023-12-25 14:24:23,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:23,721 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:23,721 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 778.75) internal successors, (3115), 4 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:23,721 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:23,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3476
[2023-12-25 14:24:23,947 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:23,947 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 14:24:23,991 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0
[2023-12-25 14:24:24,168 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:24,168 INFO  L420      AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:24,169 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:24,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 1924149187, now seen corresponding path program 1 times
[2023-12-25 14:24:24,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:24,169 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215786727]
[2023-12-25 14:24:24,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:24,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:24,392 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:24,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033771904]
[2023-12-25 14:24:24,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:24,392 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:24,393 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:24,393 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 14:24:24,395 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 14:24:27,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:27,276 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14934 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 14:24:27,305 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:27,965 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 72 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:27,965 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:28,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked.
[2023-12-25 14:24:28,029 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:28,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215786727]
[2023-12-25 14:24:28,030 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:28,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033771904]
[2023-12-25 14:24:28,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033771904] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:28,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:28,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:24:28,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952574253]
[2023-12-25 14:24:28,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:28,032 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:24:28,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:28,033 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:24:28,033 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:28,033 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 622.8) internal successors, (3114), 5 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:28,258 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:28,258 INFO  L93              Difference]: Finished difference Result 18056 states and 29706 transitions.
[2023-12-25 14:24:28,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:24:28,259 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 622.8) internal successors, (3114), 5 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3475
[2023-12-25 14:24:28,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:28,272 INFO  L225             Difference]: With dead ends: 18056
[2023-12-25 14:24:28,272 INFO  L226             Difference]: Without dead ends: 13717
[2023-12-25 14:24:28,277 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6948 GetRequests, 6937 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:28,277 INFO  L413           NwaCegarLoop]: 14869 mSDtfsCounter, 13350 mSDsluCounter, 36790 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13350 SdHoareTripleChecker+Valid, 51659 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:28,278 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13350 Valid, 51659 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:28,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13717 states.
[2023-12-25 14:24:28,342 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13717 to 5167.
[2023-12-25 14:24:28,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:28,350 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:28,350 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3475
[2023-12-25 14:24:28,352 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:28,352 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:28,352 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 622.8) internal successors, (3114), 5 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:28,352 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:28,414 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3477
[2023-12-25 14:24:28,414 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:28,415 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 14:24:28,453 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 14:24:28,640 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:28,641 INFO  L420      AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:28,641 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:28,641 INFO  L85        PathProgramCache]: Analyzing trace with hash -1614644871, now seen corresponding path program 1 times
[2023-12-25 14:24:28,641 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:28,641 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504354768]
[2023-12-25 14:24:28,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:28,642 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:28,842 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:28,842 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130428439]
[2023-12-25 14:24:28,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:28,843 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:28,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:28,844 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 14:24:28,846 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 14:24:31,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:32,005 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14937 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:24:32,036 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:32,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 68 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:32,848 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:33,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked.
[2023-12-25 14:24:33,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:33,049 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504354768]
[2023-12-25 14:24:33,049 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:33,049 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130428439]
[2023-12-25 14:24:33,049 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [130428439] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:33,049 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:33,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:24:33,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456816648]
[2023-12-25 14:24:33,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:33,051 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:24:33,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:33,053 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:24:33,053 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:33,053 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:33,183 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:33,183 INFO  L93              Difference]: Finished difference Result 13737 states and 22603 transitions.
[2023-12-25 14:24:33,183 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:24:33,184 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3476
[2023-12-25 14:24:33,186 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:33,192 INFO  L225             Difference]: With dead ends: 13737
[2023-12-25 14:24:33,192 INFO  L226             Difference]: Without dead ends: 9398
[2023-12-25 14:24:33,196 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6950 GetRequests, 6941 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:33,196 INFO  L413           NwaCegarLoop]: 8165 mSDtfsCounter, 6643 mSDsluCounter, 15227 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6643 SdHoareTripleChecker+Valid, 23392 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:33,196 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6643 Valid, 23392 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:33,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9398 states.
[2023-12-25 14:24:33,244 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9398 to 5167.
[2023-12-25 14:24:33,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:33,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:33,251 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3476
[2023-12-25 14:24:33,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:33,252 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:33,253 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:33,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:33,314 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3478
[2023-12-25 14:24:33,314 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:33,315 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 14:24:33,350 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 14:24:33,528 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122,79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:33,528 INFO  L420      AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:33,529 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:33,529 INFO  L85        PathProgramCache]: Analyzing trace with hash -1720942525, now seen corresponding path program 1 times
[2023-12-25 14:24:33,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:33,529 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146285694]
[2023-12-25 14:24:33,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:33,529 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:33,725 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:33,725 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075950417]
[2023-12-25 14:24:33,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:33,726 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:33,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:33,727 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 14:24:33,727 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 14:24:36,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:36,762 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14940 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-25 14:24:36,790 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:37,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 62 proven. 461 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:37,851 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:37,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked.
[2023-12-25 14:24:37,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:37,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146285694]
[2023-12-25 14:24:37,889 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:37,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075950417]
[2023-12-25 14:24:37,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075950417] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:37,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:37,890 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11
[2023-12-25 14:24:37,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13238210]
[2023-12-25 14:24:37,890 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:37,891 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 14:24:37,891 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:37,893 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 14:24:37,893 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:37,893 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 4 states, 4 states have (on average 777.75) internal successors, (3111), 4 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:38,018 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:38,018 INFO  L93              Difference]: Finished difference Result 13746 states and 22618 transitions.
[2023-12-25 14:24:38,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 14:24:38,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 777.75) internal successors, (3111), 4 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3477
[2023-12-25 14:24:38,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:38,028 INFO  L225             Difference]: With dead ends: 13746
[2023-12-25 14:24:38,028 INFO  L226             Difference]: Without dead ends: 9407
[2023-12-25 14:24:38,032 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6952 GetRequests, 6943 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-25 14:24:38,032 INFO  L413           NwaCegarLoop]: 8174 mSDtfsCounter, 6649 mSDsluCounter, 15236 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6649 SdHoareTripleChecker+Valid, 23410 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:38,032 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6649 Valid, 23410 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:38,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9407 states.
[2023-12-25 14:24:38,083 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9407 to 5167.
[2023-12-25 14:24:38,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:38,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:38,091 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3477
[2023-12-25 14:24:38,092 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:38,092 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:38,093 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 777.75) internal successors, (3111), 4 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:38,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:38,154 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3479
[2023-12-25 14:24:38,154 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:38,155 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 14:24:38,190 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 14:24:38,371 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,SelfDestructingSolverStorable123
[2023-12-25 14:24:38,371 INFO  L420      AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:38,371 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:38,371 INFO  L85        PathProgramCache]: Analyzing trace with hash -766169841, now seen corresponding path program 1 times
[2023-12-25 14:24:38,372 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:38,372 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869399451]
[2023-12-25 14:24:38,372 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:38,372 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:38,590 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:38,590 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551186792]
[2023-12-25 14:24:38,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:38,591 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:38,591 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:38,592 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 14:24:38,594 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 14:24:41,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:41,803 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14943 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:24:41,833 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:42,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 34 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:42,829 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:42,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked.
[2023-12-25 14:24:42,878 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:42,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869399451]
[2023-12-25 14:24:42,878 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:42,878 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551186792]
[2023-12-25 14:24:42,878 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [551186792] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:42,878 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:42,879 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:24:42,879 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123962210]
[2023-12-25 14:24:42,879 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:42,880 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:24:42,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:42,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:24:42,882 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:42,882 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 619.6) internal successors, (3098), 5 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:43,111 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:43,112 INFO  L93              Difference]: Finished difference Result 18115 states and 29803 transitions.
[2023-12-25 14:24:43,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:24:43,113 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 619.6) internal successors, (3098), 5 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3478
[2023-12-25 14:24:43,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:43,126 INFO  L225             Difference]: With dead ends: 18115
[2023-12-25 14:24:43,126 INFO  L226             Difference]: Without dead ends: 13776
[2023-12-25 14:24:43,132 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6954 GetRequests, 6943 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:43,132 INFO  L413           NwaCegarLoop]: 14934 mSDtfsCounter, 13380 mSDsluCounter, 36920 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13380 SdHoareTripleChecker+Valid, 51854 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:43,132 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13380 Valid, 51854 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:43,138 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13776 states.
[2023-12-25 14:24:43,196 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13776 to 5167.
[2023-12-25 14:24:43,199 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:43,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:43,203 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3478
[2023-12-25 14:24:43,204 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:43,205 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:43,205 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 619.6) internal successors, (3098), 5 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:43,205 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:43,267 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3480
[2023-12-25 14:24:43,267 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:43,267 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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[2023-12-25 14:24:43,303 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 14:24:43,480 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,SelfDestructingSolverStorable124
[2023-12-25 14:24:43,480 INFO  L420      AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:43,481 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:43,481 INFO  L85        PathProgramCache]: Analyzing trace with hash 2005153617, now seen corresponding path program 1 times
[2023-12-25 14:24:43,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:43,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837347742]
[2023-12-25 14:24:43,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:43,481 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:43,676 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:43,676 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675739558]
[2023-12-25 14:24:43,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:43,677 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:43,677 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:43,678 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 14:24:43,680 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 14:24:46,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:46,736 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14947 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:24:46,765 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:47,529 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 26 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:47,529 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:47,576 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2023-12-25 14:24:47,576 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:47,576 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837347742]
[2023-12-25 14:24:47,576 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:47,577 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675739558]
[2023-12-25 14:24:47,577 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [675739558] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:47,577 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:47,577 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:24:47,577 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525036014]
[2023-12-25 14:24:47,577 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:47,578 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:24:47,578 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:47,580 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:24:47,580 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:47,580 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 619.0) internal successors, (3095), 5 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:47,806 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:47,806 INFO  L93              Difference]: Finished difference Result 18125 states and 29821 transitions.
[2023-12-25 14:24:47,806 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:24:47,807 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 619.0) internal successors, (3095), 5 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3479
[2023-12-25 14:24:47,809 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:47,820 INFO  L225             Difference]: With dead ends: 18125
[2023-12-25 14:24:47,821 INFO  L226             Difference]: Without dead ends: 13786
[2023-12-25 14:24:47,826 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6956 GetRequests, 6945 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:47,826 INFO  L413           NwaCegarLoop]: 14948 mSDtfsCounter, 13386 mSDsluCounter, 36948 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13386 SdHoareTripleChecker+Valid, 51896 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:47,826 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13386 Valid, 51896 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:47,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13786 states.
[2023-12-25 14:24:47,892 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13786 to 5167.
[2023-12-25 14:24:47,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:47,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:47,900 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3479
[2023-12-25 14:24:47,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:47,901 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:47,902 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 619.0) internal successors, (3095), 5 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:47,902 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:47,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3481
[2023-12-25 14:24:47,965 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:47,965 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 14:24:48,002 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0
[2023-12-25 14:24:48,180 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,SelfDestructingSolverStorable125
[2023-12-25 14:24:48,180 INFO  L420      AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:48,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:48,181 INFO  L85        PathProgramCache]: Analyzing trace with hash 2128977931, now seen corresponding path program 1 times
[2023-12-25 14:24:48,181 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:48,181 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576798230]
[2023-12-25 14:24:48,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:48,181 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:48,385 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:48,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599764694]
[2023-12-25 14:24:48,385 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:48,386 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:48,386 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:48,386 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 14:24:48,387 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process
[2023-12-25 14:24:51,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:51,769 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14951 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 14:24:51,798 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:52,626 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 22 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:52,626 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:24:52,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked.
[2023-12-25 14:24:52,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:24:52,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576798230]
[2023-12-25 14:24:52,672 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:24:52,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599764694]
[2023-12-25 14:24:52,672 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [599764694] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 14:24:52,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 14:24:52,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-25 14:24:52,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656662401]
[2023-12-25 14:24:52,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 14:24:52,674 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 14:24:52,674 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:24:52,675 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 14:24:52,675 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:52,675 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 5 states, 5 states have (on average 618.8) internal successors, (3094), 5 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:52,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:24:52,895 INFO  L93              Difference]: Finished difference Result 18134 states and 29836 transitions.
[2023-12-25 14:24:52,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 14:24:52,895 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 618.8) internal successors, (3094), 5 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3480
[2023-12-25 14:24:52,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:24:52,908 INFO  L225             Difference]: With dead ends: 18134
[2023-12-25 14:24:52,908 INFO  L226             Difference]: Without dead ends: 13795
[2023-12-25 14:24:52,913 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6958 GetRequests, 6947 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 14:24:52,913 INFO  L413           NwaCegarLoop]: 14955 mSDtfsCounter, 13389 mSDsluCounter, 36962 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13389 SdHoareTripleChecker+Valid, 51917 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:24:52,913 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13389 Valid, 51917 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 14:24:52,920 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13795 states.
[2023-12-25 14:24:52,977 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13795 to 5167.
[2023-12-25 14:24:52,980 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5167 states, 5166 states have (on average 1.6476964769647697) internal successors, (8512), 5166 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:52,984 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 8512 transitions.
[2023-12-25 14:24:52,984 INFO  L78                 Accepts]: Start accepts. Automaton has 5167 states and 8512 transitions. Word has length 3480
[2023-12-25 14:24:52,986 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:24:52,986 INFO  L495      AbstractCegarLoop]: Abstraction has 5167 states and 8512 transitions.
[2023-12-25 14:24:52,986 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 618.8) internal successors, (3094), 5 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:24:52,986 INFO  L276                IsEmpty]: Start isEmpty. Operand 5167 states and 8512 transitions.
[2023-12-25 14:24:53,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3482
[2023-12-25 14:24:53,048 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:24:53,048 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 14:24:53,086 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 14:24:53,264 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,SelfDestructingSolverStorable126
[2023-12-25 14:24:53,264 INFO  L420      AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:24:53,265 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:24:53,265 INFO  L85        PathProgramCache]: Analyzing trace with hash -648310125, now seen corresponding path program 1 times
[2023-12-25 14:24:53,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:24:53,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56117248]
[2023-12-25 14:24:53,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:53,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:24:53,462 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:24:53,462 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759875968]
[2023-12-25 14:24:53,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:24:53,463 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:24:53,463 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:24:53,465 INFO  L229       MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 14:24:53,468 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process
[2023-12-25 14:24:56,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:24:57,040 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14954 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-25 14:24:57,069 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:24:59,751 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 251 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:24:59,751 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:25:01,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 271 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:25:01,996 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:25:01,996 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56117248]
[2023-12-25 14:25:01,996 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:25:01,996 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759875968]
[2023-12-25 14:25:01,996 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759875968] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 14:25:01,996 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 14:25:01,997 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22
[2023-12-25 14:25:01,997 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297612341]
[2023-12-25 14:25:01,997 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 14:25:02,001 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2023-12-25 14:25:02,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:25:02,005 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2023-12-25 14:25:02,005 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462
[2023-12-25 14:25:02,005 INFO  L87              Difference]: Start difference. First operand 5167 states and 8512 transitions. Second operand  has 22 states, 22 states have (on average 299.40909090909093) internal successors, (6587), 22 states have internal predecessors, (6587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:25:28,193 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:25:28,194 INFO  L93              Difference]: Finished difference Result 45343 states and 74022 transitions.
[2023-12-25 14:25:28,194 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. 
[2023-12-25 14:25:28,196 INFO  L78                 Accepts]: Start accepts. Automaton has  has 22 states, 22 states have (on average 299.40909090909093) internal successors, (6587), 22 states have internal predecessors, (6587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3481
[2023-12-25 14:25:28,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:25:28,231 INFO  L225             Difference]: With dead ends: 45343
[2023-12-25 14:25:28,231 INFO  L226             Difference]: Without dead ends: 41004
[2023-12-25 14:25:28,245 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7004 GetRequests, 6951 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=569, Invalid=2401, Unknown=0, NotChecked=0, Total=2970
[2023-12-25 14:25:28,245 INFO  L413           NwaCegarLoop]: 22254 mSDtfsCounter, 143134 mSDsluCounter, 177901 mSDsCounter, 0 mSdLazyCounter, 50867 mSolverCounterSat, 1383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143134 SdHoareTripleChecker+Valid, 200155 SdHoareTripleChecker+Invalid, 52250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1383 IncrementalHoareTripleChecker+Valid, 50867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time
[2023-12-25 14:25:28,246 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [143134 Valid, 200155 Invalid, 52250 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1383 Valid, 50867 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time]
[2023-12-25 14:25:28,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41004 states.
[2023-12-25 14:25:28,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41004 to 10842.
[2023-12-25 14:25:28,476 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10842 states, 10841 states have (on average 1.6484641638225257) internal successors, (17871), 10841 states have internal predecessors, (17871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:25:28,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10842 states to 10842 states and 17871 transitions.
[2023-12-25 14:25:28,490 INFO  L78                 Accepts]: Start accepts. Automaton has 10842 states and 17871 transitions. Word has length 3481
[2023-12-25 14:25:28,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:25:28,491 INFO  L495      AbstractCegarLoop]: Abstraction has 10842 states and 17871 transitions.
[2023-12-25 14:25:28,492 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 22 states have (on average 299.40909090909093) internal successors, (6587), 22 states have internal predecessors, (6587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:25:28,492 INFO  L276                IsEmpty]: Start isEmpty. Operand 10842 states and 17871 transitions.
[2023-12-25 14:25:28,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3483
[2023-12-25 14:25:28,603 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:25:28,604 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 14:25:28,649 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0
[2023-12-25 14:25:28,820 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,84 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:25:28,820 INFO  L420      AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:25:28,821 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:25:28,821 INFO  L85        PathProgramCache]: Analyzing trace with hash -658831009, now seen corresponding path program 1 times
[2023-12-25 14:25:28,821 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:25:28,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26378982]
[2023-12-25 14:25:28,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:25:28,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:25:29,016 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:25:29,016 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420513822]
[2023-12-25 14:25:29,017 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:25:29,017 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:25:29,017 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:25:29,019 INFO  L229       MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 14:25:29,019 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process
[2023-12-25 14:25:32,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:25:32,250 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14957 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 14:25:32,280 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:25:35,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 251 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:25:35,946 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:25:38,499 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 269 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:25:38,499 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:25:38,499 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26378982]
[2023-12-25 14:25:38,500 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:25:38,500 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420513822]
[2023-12-25 14:25:38,500 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420513822] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 14:25:38,500 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 14:25:38,500 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20
[2023-12-25 14:25:38,500 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788756727]
[2023-12-25 14:25:38,500 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 14:25:38,519 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-25 14:25:38,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:25:38,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-25 14:25:38,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380
[2023-12-25 14:25:38,522 INFO  L87              Difference]: Start difference. First operand 10842 states and 17871 transitions. Second operand  has 20 states, 20 states have (on average 329.4) internal successors, (6588), 20 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:25:56,432 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:25:56,433 INFO  L93              Difference]: Finished difference Result 63121 states and 103458 transitions.
[2023-12-25 14:25:56,433 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2023-12-25 14:25:56,434 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 20 states have (on average 329.4) internal successors, (6588), 20 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3482
[2023-12-25 14:25:56,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:25:56,478 INFO  L225             Difference]: With dead ends: 63121
[2023-12-25 14:25:56,478 INFO  L226             Difference]: Without dead ends: 53691
[2023-12-25 14:25:56,485 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6989 GetRequests, 6951 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=368, Invalid=1192, Unknown=0, NotChecked=0, Total=1560
[2023-12-25 14:25:56,485 INFO  L413           NwaCegarLoop]: 16834 mSDtfsCounter, 97062 mSDsluCounter, 132182 mSDsCounter, 0 mSdLazyCounter, 37734 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97062 SdHoareTripleChecker+Valid, 149016 SdHoareTripleChecker+Invalid, 38423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 37734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time
[2023-12-25 14:25:56,486 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [97062 Valid, 149016 Invalid, 38423 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [689 Valid, 37734 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time]
[2023-12-25 14:25:56,508 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53691 states.
[2023-12-25 14:25:56,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53691 to 10851.
[2023-12-25 14:25:56,739 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10851 states, 10850 states have (on average 1.648479262672811) internal successors, (17886), 10850 states have internal predecessors, (17886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:25:56,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10851 states to 10851 states and 17886 transitions.
[2023-12-25 14:25:56,749 INFO  L78                 Accepts]: Start accepts. Automaton has 10851 states and 17886 transitions. Word has length 3482
[2023-12-25 14:25:56,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:25:56,750 INFO  L495      AbstractCegarLoop]: Abstraction has 10851 states and 17886 transitions.
[2023-12-25 14:25:56,751 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 20 states have (on average 329.4) internal successors, (6588), 20 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:25:56,751 INFO  L276                IsEmpty]: Start isEmpty. Operand 10851 states and 17886 transitions.
[2023-12-25 14:25:56,816 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3484
[2023-12-25 14:25:56,816 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:25:56,817 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 14:25:56,859 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0
[2023-12-25 14:25:57,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,85 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:25:57,028 INFO  L420      AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:25:57,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:25:57,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 434392505, now seen corresponding path program 1 times
[2023-12-25 14:25:57,029 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:25:57,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875867294]
[2023-12-25 14:25:57,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:25:57,029 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:25:57,236 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:25:57,236 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402989155]
[2023-12-25 14:25:57,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:25:57,237 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:25:57,237 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:25:57,238 INFO  L229       MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 14:25:57,239 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process
[2023-12-25 14:26:00,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:26:00,637 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14960 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 14:26:00,671 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:26:04,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 204 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:26:04,248 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:26:06,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 248 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:26:06,927 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:26:06,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875867294]
[2023-12-25 14:26:06,927 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:26:06,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402989155]
[2023-12-25 14:26:06,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402989155] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 14:26:06,927 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 14:26:06,928 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20
[2023-12-25 14:26:06,928 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341254352]
[2023-12-25 14:26:06,928 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 14:26:06,931 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-25 14:26:06,931 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:26:06,933 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-25 14:26:06,933 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380
[2023-12-25 14:26:06,934 INFO  L87              Difference]: Start difference. First operand 10851 states and 17886 transitions. Second operand  has 20 states, 20 states have (on average 332.95) internal successors, (6659), 20 states have internal predecessors, (6659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:26:23,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 14:26:23,731 INFO  L93              Difference]: Finished difference Result 54913 states and 90408 transitions.
[2023-12-25 14:26:23,731 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2023-12-25 14:26:23,732 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 20 states have (on average 332.95) internal successors, (6659), 20 states have internal predecessors, (6659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3483
[2023-12-25 14:26:23,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 14:26:23,781 INFO  L225             Difference]: With dead ends: 54913
[2023-12-25 14:26:23,782 INFO  L226             Difference]: Without dead ends: 45477
[2023-12-25 14:26:23,796 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6986 GetRequests, 6951 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332
[2023-12-25 14:26:23,797 INFO  L413           NwaCegarLoop]: 10260 mSDtfsCounter, 103204 mSDsluCounter, 91975 mSDsCounter, 0 mSdLazyCounter, 40779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103204 SdHoareTripleChecker+Valid, 102235 SdHoareTripleChecker+Invalid, 40783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time
[2023-12-25 14:26:23,797 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [103204 Valid, 102235 Invalid, 40783 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [4 Valid, 40779 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time]
[2023-12-25 14:26:23,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45477 states.
[2023-12-25 14:26:24,150 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45477 to 17340.
[2023-12-25 14:26:24,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17340 states, 17339 states have (on average 1.6496337735740239) internal successors, (28603), 17339 states have internal predecessors, (28603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:26:24,188 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17340 states to 17340 states and 28603 transitions.
[2023-12-25 14:26:24,189 INFO  L78                 Accepts]: Start accepts. Automaton has 17340 states and 28603 transitions. Word has length 3483
[2023-12-25 14:26:24,191 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 14:26:24,191 INFO  L495      AbstractCegarLoop]: Abstraction has 17340 states and 28603 transitions.
[2023-12-25 14:26:24,192 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 20 states have (on average 332.95) internal successors, (6659), 20 states have internal predecessors, (6659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 14:26:24,192 INFO  L276                IsEmpty]: Start isEmpty. Operand 17340 states and 28603 transitions.
[2023-12-25 14:26:24,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3485
[2023-12-25 14:26:24,278 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 14:26:24,279 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 14:26:24,332 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0
[2023-12-25 14:26:24,496 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129
[2023-12-25 14:26:24,496 INFO  L420      AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 14:26:24,496 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 14:26:24,497 INFO  L85        PathProgramCache]: Analyzing trace with hash 607835329, now seen corresponding path program 1 times
[2023-12-25 14:26:24,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 14:26:24,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423994683]
[2023-12-25 14:26:24,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:26:24,497 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 14:26:24,756 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 14:26:24,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777959472]
[2023-12-25 14:26:24,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 14:26:24,757 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:26:24,758 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 14:26:24,759 INFO  L229       MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 14:26:24,760 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process
[2023-12-25 14:26:28,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 14:26:28,345 INFO  L262         TraceCheckSpWp]: Trace formula consists of 14963 conjuncts, 67 conjunts are in the unsatisfiable core
[2023-12-25 14:26:28,376 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 14:26:41,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 158 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:26:41,384 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 14:26:57,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 226 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 14:26:57,815 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 14:26:57,815 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423994683]
[2023-12-25 14:26:57,815 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 14:26:57,815 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777959472]
[2023-12-25 14:26:57,815 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [777959472] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 14:26:57,815 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 14:26:57,816 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19] total 41
[2023-12-25 14:26:57,816 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794554938]
[2023-12-25 14:26:57,816 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 14:26:57,818 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 41 states
[2023-12-25 14:26:57,818 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 14:26:57,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants.
[2023-12-25 14:26:57,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640
[2023-12-25 14:26:57,821 INFO  L87              Difference]: Start difference. First operand 17340 states and 28603 transitions. Second operand  has 41 states, 41 states have (on average 164.17073170731706) internal successors, (6731), 41 states have internal predecessors, (6731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2023-12-25 14:31:10,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. 
[2023-12-25 14:31:10,480 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7282 GetRequests, 6943 SyntacticMatches, 0 SemanticMatches, 339 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44061 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=15531, Invalid=100409, Unknown=0, NotChecked=0, Total=115940
[2023-12-25 14:31:10,480 INFO  L413           NwaCegarLoop]: 50063 mSDtfsCounter, 292420 mSDsluCounter, 973785 mSDsCounter, 0 mSdLazyCounter, 359574 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 178.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292420 SdHoareTripleChecker+Valid, 1023848 SdHoareTripleChecker+Invalid, 359609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.7s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 359574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 207.7s IncrementalHoareTripleChecker+Time
[2023-12-25 14:31:10,480 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [292420 Valid, 1023848 Invalid, 359609 Unknown, 0 Unchecked, 2.7s Time], IncrementalHoareTripleChecker [35 Valid, 359574 Invalid, 0 Unknown, 0 Unchecked, 207.7s Time]
[2023-12-25 14:31:10,481 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 14:31:10,517 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 14:31:10,517 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 14:31:10,528 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0
[2023-12-25 14:31:10,699 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,87 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 14:31:10,700 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (17340states) and FLOYD_HOARE automaton (currently 306 states, 41 states before enhancement),while ReachableStatesComputation was computing reachable states (573567 states constructed, input type IntersectNwa).
[2023-12-25 14:31:10,703 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]
[2023-12-25 14:31:10,705 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 14:31:10,706 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 02:31:10 BoogieIcfgContainer
[2023-12-25 14:31:10,706 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: Toolchain (without parser) took 832778.43ms. Allocated memory was 204.5MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 146.7MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB.
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory was 155.0MB in the beginning and 154.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1170.98ms. Allocated memory was 204.5MB in the beginning and 287.3MB in the end (delta: 82.8MB). Free memory was 146.4MB in the beginning and 179.1MB in the end (delta: -32.7MB). Peak memory consumption was 126.5MB. Max. memory is 8.0GB.
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: Boogie Procedure Inliner took 1293.36ms. Allocated memory was 287.3MB in the beginning and 1.2GB in the end (delta: 922.7MB). Free memory was 179.1MB in the beginning and 882.2MB in the end (delta: -703.1MB). Peak memory consumption was 291.0MB. Max. memory is 8.0GB.
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: Boogie Preprocessor took 1742.29ms. Allocated memory is still 1.2GB. Free memory was 882.2MB in the beginning and 761.1MB in the end (delta: 121.1MB). Peak memory consumption was 141.6MB. Max. memory is 8.0GB.
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: RCFGBuilder took 7785.79ms. Allocated memory was 1.2GB in the beginning and 3.0GB in the end (delta: 1.8GB). Free memory was 761.1MB in the beginning and 1.3GB in the end (delta: -559.4MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
[2023-12-25 14:31:10,706 INFO  L158              Benchmark]: TraceAbstraction took 820781.68ms. Allocated memory was 3.0GB in the beginning and 4.1GB in the end (delta: 1.1GB). Free memory was 1.3GB in the beginning and 1.9GB in the end (delta: -582.5MB). Peak memory consumption was 472.9MB. Max. memory is 8.0GB.
[2023-12-25 14:31:10,707 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory was 155.0MB in the beginning and 154.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1170.98ms. Allocated memory was 204.5MB in the beginning and 287.3MB in the end (delta: 82.8MB). Free memory was 146.4MB in the beginning and 179.1MB in the end (delta: -32.7MB). Peak memory consumption was 126.5MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 1293.36ms. Allocated memory was 287.3MB in the beginning and 1.2GB in the end (delta: 922.7MB). Free memory was 179.1MB in the beginning and 882.2MB in the end (delta: -703.1MB). Peak memory consumption was 291.0MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 1742.29ms. Allocated memory is still 1.2GB. Free memory was 882.2MB in the beginning and 761.1MB in the end (delta: 121.1MB). Peak memory consumption was 141.6MB. Max. memory is 8.0GB.
 * RCFGBuilder took 7785.79ms. Allocated memory was 1.2GB in the beginning and 3.0GB in the end (delta: 1.8GB). Free memory was 761.1MB in the beginning and 1.3GB in the end (delta: -559.4MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB.
 * TraceAbstraction took 820781.68ms. Allocated memory was 3.0GB in the beginning and 4.1GB in the end (delta: 1.1GB). Free memory was 1.3GB in the beginning and 1.9GB in the end (delta: -582.5MB). Peak memory consumption was 472.9MB. 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 constructing difference of abstraction (17340states) and FLOYD_HOARE automaton (currently 306 states, 41 states before enhancement),while ReachableStatesComputation was computing reachable states (573567 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 4250 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 820.7s, OverallIterations: 131, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 6.4s, AutomataDifference: 339.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1740700 SdHoareTripleChecker+Valid, 268.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1740700 mSDsluCounter, 5404955 SdHoareTripleChecker+Invalid, 229.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4059699 mSDsCounter, 2880 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 495070 IncrementalHoareTripleChecker+Invalid, 497950 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2880 mSolverCounterUnsat, 1345256 mSDtfsCounter, 495070 mSolverCounterSat, 8.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 592474 GetRequests, 591031 SyntacticMatches, 0 SemanticMatches, 1443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47726 ImplicationChecksByTransitivity, 19.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17340occurred in iteration=130, InterpolantAutomatonStates: 706, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.4s AutomataMinimizationTime, 130 MinimizatonAttempts, 750454 StatesRemovedByMinimization, 129 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 67.2s SsaConstructionTime, 161.0s SatisfiabilityAnalysisTime, 157.2s InterpolantComputationTime, 326929 NumberOfCodeBlocks, 326929 NumberOfCodeBlocksAsserted, 131 NumberOfCheckSat, 622681 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048734 SizeOfPredicates, 449 NumberOfNonLiveVariables, 1274984 ConjunctsInSsa, 1528 ConjunctsInUnsatCore, 217 InterpolantComputations, 127 PerfectInterpolantSequences, 57997/89882 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