/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.lifts.8.prop1-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 19:34:43,249 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 19:34:43,310 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 19:34:43,313 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 19:34:43,314 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 19:34:43,334 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 19:34:43,335 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 19:34:43,335 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 19:34:43,335 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 19:34:43,338 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 19:34:43,338 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 19:34:43,339 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 19:34:43,339 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 19:34:43,340 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 19:34:43,340 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 19:34:43,340 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 19:34:43,341 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 19:34:43,341 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 19:34:43,341 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 19:34:43,342 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 19:34:43,342 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 19:34:43,342 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 19:34:43,342 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 19:34:43,342 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 19:34:43,343 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 19:34:43,343 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 19:34:43,343 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 19:34:43,343 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 19:34:43,344 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 19:34:43,344 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 19:34:43,344 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 19:34:43,345 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 19:34:43,346 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 19:34:43,508 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 19:34:43,528 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 19:34:43,529 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 19:34:43,530 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 19:34:43,532 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 19:34:43,532 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.lifts.8.prop1-back-serstep.c
[2023-12-25 19:34:44,506 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 19:34:44,919 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 19:34:44,920 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.lifts.8.prop1-back-serstep.c
[2023-12-25 19:34:44,960 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262424dee/272cd091b1fa4b30bfcd83f56af1bf40/FLAG8c9b9e132
[2023-12-25 19:34:44,973 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/262424dee/272cd091b1fa4b30bfcd83f56af1bf40
[2023-12-25 19:34:44,975 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 19:34:44,976 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 19:34:44,977 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 19:34:44,977 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 19:34:44,980 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 19:34:44,981 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:34:44" (1/1) ...
[2023-12-25 19:34:44,981 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d57db39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:44, skipping insertion in model container
[2023-12-25 19:34:44,981 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:34:44" (1/1) ...
[2023-12-25 19:34:45,116 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 19:34:45,366 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.lifts.8.prop1-back-serstep.c[1173,1186]
[2023-12-25 19:34:46,491 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 19:34:46,498 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 19:34:46,507 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.lifts.8.prop1-back-serstep.c[1173,1186]
[2023-12-25 19:34:47,284 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 19:34:47,294 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 19:34:47,295 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47 WrapperNode
[2023-12-25 19:34:47,295 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 19:34:47,296 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 19:34:47,296 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 19:34:47,296 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 19:34:47,300 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:47,740 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:52,641 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70931
[2023-12-25 19:34:52,641 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 19:34:52,642 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 19:34:52,642 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 19:34:52,642 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 19:34:52,649 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:52,649 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:53,868 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:54,518 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 19:34:54,518 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:54,518 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:55,968 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:56,133 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:56,369 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:56,530 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:57,298 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 19:34:57,299 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 19:34:57,299 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 19:34:57,299 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 19:34:57,301 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (1/1) ...
[2023-12-25 19:34:57,321 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 19:34:57,327 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:34:57,361 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 19:34:57,378 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 19:34:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 19:34:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 19:34:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 19:34:57,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 19:34:59,810 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 19:34:59,812 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 19:35:22,305 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 19:35:22,959 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 19:35:22,959 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 19:35:22,959 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:35:22 BoogieIcfgContainer
[2023-12-25 19:35:22,960 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 19:35:22,963 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 19:35:22,963 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 19:35:22,965 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 19:35:22,965 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:34:44" (1/3) ...
[2023-12-25 19:35:22,966 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ca67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:35:22, skipping insertion in model container
[2023-12-25 19:35:22,966 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:34:47" (2/3) ...
[2023-12-25 19:35:22,966 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ca67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:35:22, skipping insertion in model container
[2023-12-25 19:35:22,966 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:35:22" (3/3) ...
[2023-12-25 19:35:22,968 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lifts.8.prop1-back-serstep.c
[2023-12-25 19:35:22,978 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 19:35:22,979 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 19:35:23,384 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 19:35:23,388 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;@48a707d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 19:35:23,389 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 19:35:23,423 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 16347 states, 16345 states have (on average 1.6701743652493117) internal successors, (27299), 16346 states have internal predecessors, (27299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:23,468 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1249
[2023-12-25 19:35:23,469 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:35:23,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:23,471 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:35:23,475 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:35:23,476 INFO  L85        PathProgramCache]: Analyzing trace with hash -288494208, now seen corresponding path program 1 times
[2023-12-25 19:35:23,482 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:35:23,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482972690]
[2023-12-25 19:35:23,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:23,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:35:24,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:35:27,434 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 19:35:27,435 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:35:27,435 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482972690]
[2023-12-25 19:35:27,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482972690] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:35:27,435 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:35:27,436 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:35:27,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080020699]
[2023-12-25 19:35:27,438 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:35:27,443 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:35:27,443 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:35:27,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:35:27,468 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:35:27,505 INFO  L87              Difference]: Start difference. First operand  has 16347 states, 16345 states have (on average 1.6701743652493117) internal successors, (27299), 16346 states have internal predecessors, (27299), 0 states have call successors, (0), 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 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:27,992 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:35:27,992 INFO  L93              Difference]: Finished difference Result 32336 states and 54004 transitions.
[2023-12-25 19:35:27,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:35:27,994 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1248
[2023-12-25 19:35:27,997 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:35:28,052 INFO  L225             Difference]: With dead ends: 32336
[2023-12-25 19:35:28,053 INFO  L226             Difference]: Without dead ends: 16347
[2023-12-25 19:35:28,075 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 19:35:28,077 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 1 mSDsluCounter, 54579 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 81871 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:35:28,078 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 81871 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:35:28,111 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16347 states.
[2023-12-25 19:35:28,299 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16347 to 16347.
[2023-12-25 19:35:28,326 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16347 states, 16346 states have (on average 1.6699498348219748) internal successors, (27297), 16346 states have internal predecessors, (27297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:28,470 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16347 states to 16347 states and 27297 transitions.
[2023-12-25 19:35:28,471 INFO  L78                 Accepts]: Start accepts. Automaton has 16347 states and 27297 transitions. Word has length 1248
[2023-12-25 19:35:28,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:35:28,473 INFO  L495      AbstractCegarLoop]: Abstraction has 16347 states and 27297 transitions.
[2023-12-25 19:35:28,474 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:28,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 16347 states and 27297 transitions.
[2023-12-25 19:35:28,503 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1250
[2023-12-25 19:35:28,503 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:35:28,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:28,504 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 19:35:28,504 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:35:28,504 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:35:28,505 INFO  L85        PathProgramCache]: Analyzing trace with hash -351593862, now seen corresponding path program 1 times
[2023-12-25 19:35:28,505 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:35:28,505 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584255859]
[2023-12-25 19:35:28,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:28,506 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:35:28,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:35:30,436 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 19:35:30,437 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:35:30,437 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584255859]
[2023-12-25 19:35:30,437 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584255859] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:35:30,437 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:35:30,437 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:35:30,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399684606]
[2023-12-25 19:35:30,438 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:35:30,440 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:35:30,443 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:35:30,444 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:35:30,444 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:35:30,445 INFO  L87              Difference]: Start difference. First operand 16347 states and 27297 transitions. Second operand  has 4 states, 4 states have (on average 312.25) internal successors, (1249), 4 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:30,810 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:35:30,810 INFO  L93              Difference]: Finished difference Result 32339 states and 54002 transitions.
[2023-12-25 19:35:30,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:35:30,812 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 312.25) internal successors, (1249), 4 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1249
[2023-12-25 19:35:30,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:35:30,846 INFO  L225             Difference]: With dead ends: 32339
[2023-12-25 19:35:30,846 INFO  L226             Difference]: Without dead ends: 16350
[2023-12-25 19:35:30,864 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 19:35:30,865 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 1 mSDsluCounter, 54577 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 81869 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:35:30,866 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 81869 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:35:30,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16350 states.
[2023-12-25 19:35:31,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16350 to 16349.
[2023-12-25 19:35:31,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16349 states, 16348 states have (on average 1.669867873746024) internal successors, (27299), 16348 states have internal predecessors, (27299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:31,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16349 states to 16349 states and 27299 transitions.
[2023-12-25 19:35:31,135 INFO  L78                 Accepts]: Start accepts. Automaton has 16349 states and 27299 transitions. Word has length 1249
[2023-12-25 19:35:31,136 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:35:31,136 INFO  L495      AbstractCegarLoop]: Abstraction has 16349 states and 27299 transitions.
[2023-12-25 19:35:31,137 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 312.25) internal successors, (1249), 4 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:31,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 16349 states and 27299 transitions.
[2023-12-25 19:35:31,147 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1251
[2023-12-25 19:35:31,147 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:35:31,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:31,148 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 19:35:31,148 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:35:31,148 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:35:31,149 INFO  L85        PathProgramCache]: Analyzing trace with hash 1773279704, now seen corresponding path program 1 times
[2023-12-25 19:35:31,149 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:35:31,149 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237152912]
[2023-12-25 19:35:31,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:31,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:35:31,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:35:33,142 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 19:35:33,142 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:35:33,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237152912]
[2023-12-25 19:35:33,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237152912] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:35:33,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:35:33,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:35:33,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861413899]
[2023-12-25 19:35:33,143 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:35:33,145 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 19:35:33,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:35:33,147 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 19:35:33,147 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 19:35:33,147 INFO  L87              Difference]: Start difference. First operand 16349 states and 27299 transitions. Second operand  has 5 states, 5 states have (on average 250.0) internal successors, (1250), 4 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:33,888 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:35:33,889 INFO  L93              Difference]: Finished difference Result 49827 states and 83200 transitions.
[2023-12-25 19:35:33,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 19:35:33,890 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 250.0) internal successors, (1250), 4 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1250
[2023-12-25 19:35:33,892 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:35:33,932 INFO  L225             Difference]: With dead ends: 49827
[2023-12-25 19:35:33,932 INFO  L226             Difference]: Without dead ends: 33836
[2023-12-25 19:35:33,944 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 19:35:33,945 INFO  L413           NwaCegarLoop]: 29796 mSDtfsCounter, 108632 mSDsluCounter, 54578 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108632 SdHoareTripleChecker+Valid, 84374 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:35:33,945 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [108632 Valid, 84374 Invalid, 16 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:35:33,975 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33836 states.
[2023-12-25 19:35:34,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33836 to 17854.
[2023-12-25 19:35:34,246 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17854 states, 17853 states have (on average 1.6695233294124237) internal successors, (29806), 17853 states have internal predecessors, (29806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:34,279 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17854 states to 17854 states and 29806 transitions.
[2023-12-25 19:35:34,279 INFO  L78                 Accepts]: Start accepts. Automaton has 17854 states and 29806 transitions. Word has length 1250
[2023-12-25 19:35:34,280 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:35:34,281 INFO  L495      AbstractCegarLoop]: Abstraction has 17854 states and 29806 transitions.
[2023-12-25 19:35:34,281 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 250.0) internal successors, (1250), 4 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:34,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 17854 states and 29806 transitions.
[2023-12-25 19:35:35,109 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:35:35,109 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:35:35,114 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 19:35:35,114 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 19:35:35,114 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:35:35,114 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:35:35,116 INFO  L85        PathProgramCache]: Analyzing trace with hash -406632132, now seen corresponding path program 1 times
[2023-12-25 19:35:35,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:35:35,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885030161]
[2023-12-25 19:35:35,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:35,117 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:35:36,025 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:35:36,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499239524]
[2023-12-25 19:35:36,028 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:36,028 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:35:36,028 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:35:36,030 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 19:35:36,036 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 19:35:49,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:35:49,528 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52264 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:35:49,710 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:35:50,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:35:50,017 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:35:50,017 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:35:50,020 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885030161]
[2023-12-25 19:35:50,020 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:35:50,020 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499239524]
[2023-12-25 19:35:50,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499239524] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:35:50,021 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:35:50,021 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:35:50,022 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385895234]
[2023-12-25 19:35:50,022 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:35:50,030 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:35:50,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:35:50,044 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:35:50,044 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:35:50,047 INFO  L87              Difference]: Start difference. First operand 17854 states and 29806 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:50,385 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:35:50,385 INFO  L93              Difference]: Finished difference Result 33855 states and 56525 transitions.
[2023-12-25 19:35:50,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:35:50,388 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:35:50,390 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:35:50,414 INFO  L225             Difference]: With dead ends: 33855
[2023-12-25 19:35:50,414 INFO  L226             Difference]: Without dead ends: 17864
[2023-12-25 19:35:50,431 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:35:50,436 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:35:50,437 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:35:50,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17864 states.
[2023-12-25 19:35:50,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17864 to 17856.
[2023-12-25 19:35:50,627 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17856 states, 17855 states have (on average 1.669448333800056) internal successors, (29808), 17855 states have internal predecessors, (29808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:50,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17856 states to 17856 states and 29808 transitions.
[2023-12-25 19:35:50,653 INFO  L78                 Accepts]: Start accepts. Automaton has 17856 states and 29808 transitions. Word has length 11621
[2023-12-25 19:35:50,656 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:35:50,656 INFO  L495      AbstractCegarLoop]: Abstraction has 17856 states and 29808 transitions.
[2023-12-25 19:35:50,658 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:35:50,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 17856 states and 29808 transitions.
[2023-12-25 19:35:51,430 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:35:51,431 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:35:51,436 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 19:35:51,577 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 19:35:51,651 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:35:51,652 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:35:51,652 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:35:51,655 INFO  L85        PathProgramCache]: Analyzing trace with hash 452402954, now seen corresponding path program 1 times
[2023-12-25 19:35:51,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:35:51,655 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381040972]
[2023-12-25 19:35:51,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:51,656 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:35:52,481 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:35:52,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977771090]
[2023-12-25 19:35:52,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:35:52,483 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:35:52,483 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:35:52,484 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 19:35:52,486 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 19:36:05,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:36:05,609 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52265 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:36:05,768 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:36:05,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:36:05,983 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:36:05,983 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:36:05,983 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381040972]
[2023-12-25 19:36:05,983 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:36:05,983 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977771090]
[2023-12-25 19:36:05,983 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [977771090] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:36:05,983 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:36:05,984 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:36:05,984 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526732269]
[2023-12-25 19:36:05,984 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:36:05,992 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:36:05,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:36:06,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:36:06,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:36:06,003 INFO  L87              Difference]: Start difference. First operand 17856 states and 29808 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:06,411 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:36:06,412 INFO  L93              Difference]: Finished difference Result 33858 states and 56527 transitions.
[2023-12-25 19:36:06,412 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:36:06,414 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:36:06,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:36:06,435 INFO  L225             Difference]: With dead ends: 33858
[2023-12-25 19:36:06,436 INFO  L226             Difference]: Without dead ends: 17865
[2023-12-25 19:36:06,447 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:36:06,448 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:36:06,448 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:36:06,464 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17865 states.
[2023-12-25 19:36:06,597 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17865 to 17857.
[2023-12-25 19:36:06,615 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17857 states, 17856 states have (on average 1.669410842293907) internal successors, (29809), 17856 states have internal predecessors, (29809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:06,633 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17857 states to 17857 states and 29809 transitions.
[2023-12-25 19:36:06,634 INFO  L78                 Accepts]: Start accepts. Automaton has 17857 states and 29809 transitions. Word has length 11621
[2023-12-25 19:36:06,636 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:36:06,636 INFO  L495      AbstractCegarLoop]: Abstraction has 17857 states and 29809 transitions.
[2023-12-25 19:36:06,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:06,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 17857 states and 29809 transitions.
[2023-12-25 19:36:07,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:36:07,426 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:36:07,430 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 19:36:07,586 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-25 19:36:07,631 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:07,631 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:36:07,632 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:36:07,634 INFO  L85        PathProgramCache]: Analyzing trace with hash 1565366744, now seen corresponding path program 1 times
[2023-12-25 19:36:07,634 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:36:07,634 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512806922]
[2023-12-25 19:36:07,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:07,635 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:36:08,390 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:36:08,391 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452054506]
[2023-12-25 19:36:08,395 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:08,395 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:08,396 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:36:08,400 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 19:36:08,402 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 19:36:21,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:36:21,649 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52266 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:36:21,787 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:36:21,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:36:21,994 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:36:21,994 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:36:21,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512806922]
[2023-12-25 19:36:21,995 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:36:21,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452054506]
[2023-12-25 19:36:21,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452054506] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:36:21,995 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:36:21,996 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:36:21,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680920591]
[2023-12-25 19:36:21,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:36:22,003 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:36:22,003 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:36:22,011 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:36:22,011 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:36:22,013 INFO  L87              Difference]: Start difference. First operand 17857 states and 29809 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:22,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:36:22,306 INFO  L93              Difference]: Finished difference Result 33860 states and 56529 transitions.
[2023-12-25 19:36:22,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:36:22,310 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:36:22,311 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:36:22,331 INFO  L225             Difference]: With dead ends: 33860
[2023-12-25 19:36:22,332 INFO  L226             Difference]: Without dead ends: 17866
[2023-12-25 19:36:22,348 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:36:22,348 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:36:22,349 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:36:22,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17866 states.
[2023-12-25 19:36:22,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17866 to 17858.
[2023-12-25 19:36:22,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17858 states, 17857 states have (on average 1.66937335498684) internal successors, (29810), 17857 states have internal predecessors, (29810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:22,690 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17858 states to 17858 states and 29810 transitions.
[2023-12-25 19:36:22,690 INFO  L78                 Accepts]: Start accepts. Automaton has 17858 states and 29810 transitions. Word has length 11621
[2023-12-25 19:36:22,692 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:36:22,692 INFO  L495      AbstractCegarLoop]: Abstraction has 17858 states and 29810 transitions.
[2023-12-25 19:36:22,694 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:22,694 INFO  L276                IsEmpty]: Start isEmpty. Operand 17858 states and 29810 transitions.
[2023-12-25 19:36:23,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:36:23,507 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:36:23,512 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 19:36:23,652 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 19:36:23,728 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:23,729 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:36:23,729 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:36:23,732 INFO  L85        PathProgramCache]: Analyzing trace with hash -2053516122, now seen corresponding path program 1 times
[2023-12-25 19:36:23,732 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:36:23,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877483532]
[2023-12-25 19:36:23,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:23,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:36:24,471 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:36:24,472 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124111029]
[2023-12-25 19:36:24,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:24,474 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:24,474 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:36:24,475 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 19:36:24,477 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 19:36:37,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:36:38,065 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52267 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:36:38,236 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:36:38,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:36:38,442 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:36:38,442 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:36:38,442 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877483532]
[2023-12-25 19:36:38,442 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:36:38,442 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124111029]
[2023-12-25 19:36:38,443 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124111029] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:36:38,443 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:36:38,443 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:36:38,444 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864183558]
[2023-12-25 19:36:38,444 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:36:38,451 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:36:38,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:36:38,458 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:36:38,458 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:36:38,461 INFO  L87              Difference]: Start difference. First operand 17858 states and 29810 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:38,787 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:36:38,787 INFO  L93              Difference]: Finished difference Result 33862 states and 56531 transitions.
[2023-12-25 19:36:38,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:36:38,789 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:36:38,791 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:36:38,808 INFO  L225             Difference]: With dead ends: 33862
[2023-12-25 19:36:38,808 INFO  L226             Difference]: Without dead ends: 17867
[2023-12-25 19:36:38,824 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:36:38,825 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:36:38,825 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:36:38,847 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17867 states.
[2023-12-25 19:36:38,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17867 to 17859.
[2023-12-25 19:36:39,006 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17859 states, 17858 states have (on average 1.66933587187815) internal successors, (29811), 17858 states have internal predecessors, (29811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:39,026 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17859 states to 17859 states and 29811 transitions.
[2023-12-25 19:36:39,027 INFO  L78                 Accepts]: Start accepts. Automaton has 17859 states and 29811 transitions. Word has length 11621
[2023-12-25 19:36:39,029 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:36:39,029 INFO  L495      AbstractCegarLoop]: Abstraction has 17859 states and 29811 transitions.
[2023-12-25 19:36:39,032 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:39,032 INFO  L276                IsEmpty]: Start isEmpty. Operand 17859 states and 29811 transitions.
[2023-12-25 19:36:39,804 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:36:39,804 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:36:39,812 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 19:36:39,950 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-12-25 19:36:40,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:40,028 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:36:40,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:36:40,031 INFO  L85        PathProgramCache]: Analyzing trace with hash -2068476300, now seen corresponding path program 1 times
[2023-12-25 19:36:40,031 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:36:40,032 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587507834]
[2023-12-25 19:36:40,032 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:40,033 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:36:40,806 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:36:40,806 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802548202]
[2023-12-25 19:36:40,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:40,808 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:40,808 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:36:40,809 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 19:36:40,811 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 19:36:53,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:36:53,751 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52268 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:36:53,879 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:36:54,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:36:54,001 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:36:54,001 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:36:54,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587507834]
[2023-12-25 19:36:54,002 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:36:54,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802548202]
[2023-12-25 19:36:54,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802548202] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:36:54,002 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:36:54,003 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:36:54,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731462442]
[2023-12-25 19:36:54,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:36:54,011 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:36:54,011 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:36:54,018 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:36:54,018 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:36:54,020 INFO  L87              Difference]: Start difference. First operand 17859 states and 29811 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:54,367 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:36:54,367 INFO  L93              Difference]: Finished difference Result 33864 states and 56533 transitions.
[2023-12-25 19:36:54,367 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:36:54,369 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:36:54,371 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:36:54,385 INFO  L225             Difference]: With dead ends: 33864
[2023-12-25 19:36:54,385 INFO  L226             Difference]: Without dead ends: 17868
[2023-12-25 19:36:54,396 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:36:54,396 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:36:54,396 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:36:54,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17868 states.
[2023-12-25 19:36:54,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17868 to 17860.
[2023-12-25 19:36:54,558 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17860 states, 17859 states have (on average 1.6692983929671315) internal successors, (29812), 17859 states have internal predecessors, (29812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:54,576 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17860 states to 17860 states and 29812 transitions.
[2023-12-25 19:36:54,576 INFO  L78                 Accepts]: Start accepts. Automaton has 17860 states and 29812 transitions. Word has length 11621
[2023-12-25 19:36:54,577 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:36:54,577 INFO  L495      AbstractCegarLoop]: Abstraction has 17860 states and 29812 transitions.
[2023-12-25 19:36:54,579 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:36:54,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 17860 states and 29812 transitions.
[2023-12-25 19:36:55,329 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:36:55,330 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:36:55,332 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 19:36:55,463 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 19:36:55,535 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:55,538 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:36:55,538 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:36:55,540 INFO  L85        PathProgramCache]: Analyzing trace with hash -1396351934, now seen corresponding path program 1 times
[2023-12-25 19:36:55,540 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:36:55,540 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273144867]
[2023-12-25 19:36:55,541 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:55,541 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:36:56,315 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:36:56,316 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434221678]
[2023-12-25 19:36:56,318 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:36:56,318 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:36:56,318 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:36:56,319 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 19:36:56,320 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 19:37:08,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:37:09,160 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52269 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:37:09,271 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:37:09,385 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:37:09,385 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:37:09,385 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:37:09,385 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273144867]
[2023-12-25 19:37:09,385 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:37:09,385 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434221678]
[2023-12-25 19:37:09,385 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434221678] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:37:09,385 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:37:09,386 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:37:09,386 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181001784]
[2023-12-25 19:37:09,386 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:37:09,482 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:37:09,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:37:09,488 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:37:09,489 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:37:09,491 INFO  L87              Difference]: Start difference. First operand 17860 states and 29812 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:09,752 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:37:09,753 INFO  L93              Difference]: Finished difference Result 33866 states and 56535 transitions.
[2023-12-25 19:37:09,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:37:09,755 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:37:09,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:37:09,772 INFO  L225             Difference]: With dead ends: 33866
[2023-12-25 19:37:09,772 INFO  L226             Difference]: Without dead ends: 17869
[2023-12-25 19:37:09,785 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:37:09,786 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:37:09,786 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:37:09,804 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17869 states.
[2023-12-25 19:37:09,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17869 to 17861.
[2023-12-25 19:37:09,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17861 states, 17860 states have (on average 1.6692609182530795) internal successors, (29813), 17860 states have internal predecessors, (29813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:09,974 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17861 states to 17861 states and 29813 transitions.
[2023-12-25 19:37:09,974 INFO  L78                 Accepts]: Start accepts. Automaton has 17861 states and 29813 transitions. Word has length 11621
[2023-12-25 19:37:09,975 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:37:09,975 INFO  L495      AbstractCegarLoop]: Abstraction has 17861 states and 29813 transitions.
[2023-12-25 19:37:09,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:09,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 17861 states and 29813 transitions.
[2023-12-25 19:37:10,769 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:37:10,770 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:37:10,772 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 19:37:10,916 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-12-25 19:37:10,972 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:10,973 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:37:10,973 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:37:10,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -1645805552, now seen corresponding path program 1 times
[2023-12-25 19:37:10,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:37:10,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514597739]
[2023-12-25 19:37:10,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:10,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:37:11,682 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:37:11,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189350959]
[2023-12-25 19:37:11,685 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:11,685 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:11,685 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:37:11,686 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 19:37:11,688 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 19:37:23,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:37:24,266 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52270 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:37:24,372 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:37:24,490 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:37:24,490 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:37:24,490 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:37:24,490 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514597739]
[2023-12-25 19:37:24,490 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:37:24,490 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189350959]
[2023-12-25 19:37:24,490 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [189350959] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:37:24,490 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:37:24,491 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:37:24,491 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691320148]
[2023-12-25 19:37:24,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:37:24,497 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:37:24,497 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:37:24,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:37:24,616 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:37:24,618 INFO  L87              Difference]: Start difference. First operand 17861 states and 29813 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:24,892 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:37:24,892 INFO  L93              Difference]: Finished difference Result 33868 states and 56537 transitions.
[2023-12-25 19:37:24,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:37:24,895 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:37:24,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:37:24,911 INFO  L225             Difference]: With dead ends: 33868
[2023-12-25 19:37:24,911 INFO  L226             Difference]: Without dead ends: 17870
[2023-12-25 19:37:24,923 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:37:24,923 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:37:24,924 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:37:24,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17870 states.
[2023-12-25 19:37:25,062 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17870 to 17862.
[2023-12-25 19:37:25,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17862 states, 17861 states have (on average 1.6692234477352892) internal successors, (29814), 17861 states have internal predecessors, (29814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:25,101 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17862 states to 17862 states and 29814 transitions.
[2023-12-25 19:37:25,102 INFO  L78                 Accepts]: Start accepts. Automaton has 17862 states and 29814 transitions. Word has length 11621
[2023-12-25 19:37:25,104 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:37:25,104 INFO  L495      AbstractCegarLoop]: Abstraction has 17862 states and 29814 transitions.
[2023-12-25 19:37:25,106 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:25,106 INFO  L276                IsEmpty]: Start isEmpty. Operand 17862 states and 29814 transitions.
[2023-12-25 19:37:25,870 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:37:25,871 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:37:25,873 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 19:37:26,022 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 19:37:26,076 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:26,076 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:37:26,077 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:37:26,078 INFO  L85        PathProgramCache]: Analyzing trace with hash -504518434, now seen corresponding path program 1 times
[2023-12-25 19:37:26,078 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:37:26,078 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528941345]
[2023-12-25 19:37:26,079 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:26,079 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:37:26,878 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:37:26,879 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413522005]
[2023-12-25 19:37:26,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:26,881 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:26,881 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:37:26,882 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 19:37:26,884 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 19:37:39,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:37:39,457 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52271 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:37:39,554 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:37:39,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:37:39,671 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:37:39,671 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:37:39,671 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528941345]
[2023-12-25 19:37:39,671 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:37:39,671 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413522005]
[2023-12-25 19:37:39,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413522005] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:37:39,671 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:37:39,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:37:39,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737211296]
[2023-12-25 19:37:39,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:37:39,678 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:37:39,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:37:39,682 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:37:39,682 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:37:39,684 INFO  L87              Difference]: Start difference. First operand 17862 states and 29814 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:39,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:37:39,949 INFO  L93              Difference]: Finished difference Result 33870 states and 56539 transitions.
[2023-12-25 19:37:39,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:37:39,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:37:39,957 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:37:39,971 INFO  L225             Difference]: With dead ends: 33870
[2023-12-25 19:37:39,971 INFO  L226             Difference]: Without dead ends: 17871
[2023-12-25 19:37:39,984 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:37:39,985 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:37:39,985 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:37:40,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17871 states.
[2023-12-25 19:37:40,116 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17871 to 17863.
[2023-12-25 19:37:40,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17863 states, 17862 states have (on average 1.6691859814130556) internal successors, (29815), 17862 states have internal predecessors, (29815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:40,148 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17863 states to 17863 states and 29815 transitions.
[2023-12-25 19:37:40,148 INFO  L78                 Accepts]: Start accepts. Automaton has 17863 states and 29815 transitions. Word has length 11621
[2023-12-25 19:37:40,150 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:37:40,150 INFO  L495      AbstractCegarLoop]: Abstraction has 17863 states and 29815 transitions.
[2023-12-25 19:37:40,153 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:40,153 INFO  L276                IsEmpty]: Start isEmpty. Operand 17863 states and 29815 transitions.
[2023-12-25 19:37:40,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:37:40,962 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:37:40,969 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 19:37:41,108 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2023-12-25 19:37:41,180 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,SelfDestructingSolverStorable10
[2023-12-25 19:37:41,180 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:37:41,181 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:37:41,182 INFO  L85        PathProgramCache]: Analyzing trace with hash -2076556116, now seen corresponding path program 1 times
[2023-12-25 19:37:41,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:37:41,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325802552]
[2023-12-25 19:37:41,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:41,183 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:37:41,895 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:37:41,895 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114492098]
[2023-12-25 19:37:41,897 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:41,897 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:41,898 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:37:41,898 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 19:37:41,900 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 19:37:54,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:37:54,577 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52272 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:37:54,678 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:37:54,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:37:54,855 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:37:54,855 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:37:54,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325802552]
[2023-12-25 19:37:54,855 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:37:54,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114492098]
[2023-12-25 19:37:54,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114492098] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:37:54,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:37:54,856 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:37:54,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843522801]
[2023-12-25 19:37:54,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:37:54,862 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:37:54,862 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:37:54,866 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:37:54,867 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:37:54,868 INFO  L87              Difference]: Start difference. First operand 17863 states and 29815 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:55,129 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:37:55,129 INFO  L93              Difference]: Finished difference Result 33872 states and 56541 transitions.
[2023-12-25 19:37:55,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:37:55,132 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:37:55,134 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:37:55,147 INFO  L225             Difference]: With dead ends: 33872
[2023-12-25 19:37:55,147 INFO  L226             Difference]: Without dead ends: 17872
[2023-12-25 19:37:55,160 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:37:55,161 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:37:55,161 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:37:55,175 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17872 states.
[2023-12-25 19:37:55,351 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17872 to 17864.
[2023-12-25 19:37:55,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17864 states, 17863 states have (on average 1.6691485192856743) internal successors, (29816), 17863 states have internal predecessors, (29816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:55,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17864 states to 17864 states and 29816 transitions.
[2023-12-25 19:37:55,383 INFO  L78                 Accepts]: Start accepts. Automaton has 17864 states and 29816 transitions. Word has length 11621
[2023-12-25 19:37:55,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:37:55,385 INFO  L495      AbstractCegarLoop]: Abstraction has 17864 states and 29816 transitions.
[2023-12-25 19:37:55,387 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:55,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 17864 states and 29816 transitions.
[2023-12-25 19:37:56,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:37:56,117 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:37:56,119 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 19:37:56,246 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 19:37:56,328 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:56,328 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:37:56,329 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:37:56,330 INFO  L85        PathProgramCache]: Analyzing trace with hash -764477062, now seen corresponding path program 1 times
[2023-12-25 19:37:56,330 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:37:56,330 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111356163]
[2023-12-25 19:37:56,331 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:56,331 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:37:57,023 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:37:57,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327656422]
[2023-12-25 19:37:57,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:57,026 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:57,026 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:37:57,027 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 19:37:57,031 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 19:38:09,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:38:09,920 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52273 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:38:10,078 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:38:10,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:38:10,350 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:38:10,350 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:38:10,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111356163]
[2023-12-25 19:38:10,351 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:38:10,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327656422]
[2023-12-25 19:38:10,351 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327656422] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:38:10,351 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:38:10,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:38:10,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149787261]
[2023-12-25 19:38:10,352 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:38:10,358 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:38:10,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:38:10,363 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:38:10,363 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:38:10,364 INFO  L87              Difference]: Start difference. First operand 17864 states and 29816 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:10,629 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:38:10,629 INFO  L93              Difference]: Finished difference Result 33874 states and 56543 transitions.
[2023-12-25 19:38:10,630 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:38:10,632 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:38:10,635 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:38:10,647 INFO  L225             Difference]: With dead ends: 33874
[2023-12-25 19:38:10,648 INFO  L226             Difference]: Without dead ends: 17873
[2023-12-25 19:38:10,659 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:38:10,660 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:38:10,660 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:38:10,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17873 states.
[2023-12-25 19:38:10,778 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17873 to 17865.
[2023-12-25 19:38:10,793 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17865 states, 17864 states have (on average 1.6691110613524407) internal successors, (29817), 17864 states have internal predecessors, (29817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:10,810 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17865 states to 17865 states and 29817 transitions.
[2023-12-25 19:38:10,811 INFO  L78                 Accepts]: Start accepts. Automaton has 17865 states and 29817 transitions. Word has length 11621
[2023-12-25 19:38:10,813 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:38:10,813 INFO  L495      AbstractCegarLoop]: Abstraction has 17865 states and 29817 transitions.
[2023-12-25 19:38:10,815 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:10,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 17865 states and 29817 transitions.
[2023-12-25 19:38:11,571 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:38:11,571 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:38:11,574 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 19:38:11,716 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 19:38:11,774 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,SelfDestructingSolverStorable12
[2023-12-25 19:38:11,774 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:38:11,775 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:38:11,776 INFO  L85        PathProgramCache]: Analyzing trace with hash -1899376056, now seen corresponding path program 1 times
[2023-12-25 19:38:11,776 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:38:11,776 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154120046]
[2023-12-25 19:38:11,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:11,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:38:12,447 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:38:12,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076150584]
[2023-12-25 19:38:12,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:12,450 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:38:12,450 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:38:12,451 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 19:38:12,453 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 19:38:24,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:38:25,042 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52274 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:38:25,144 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:38:25,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:38:25,262 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:38:25,262 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:38:25,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154120046]
[2023-12-25 19:38:25,262 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:38:25,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076150584]
[2023-12-25 19:38:25,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076150584] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:38:25,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:38:25,263 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:38:25,263 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020789578]
[2023-12-25 19:38:25,263 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:38:25,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:38:25,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:38:25,276 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:38:25,276 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:38:25,278 INFO  L87              Difference]: Start difference. First operand 17865 states and 29817 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:25,546 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:38:25,546 INFO  L93              Difference]: Finished difference Result 33876 states and 56545 transitions.
[2023-12-25 19:38:25,547 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:38:25,549 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:38:25,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:38:25,564 INFO  L225             Difference]: With dead ends: 33876
[2023-12-25 19:38:25,564 INFO  L226             Difference]: Without dead ends: 17874
[2023-12-25 19:38:25,576 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:38:25,579 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:38:25,579 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:38:25,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17874 states.
[2023-12-25 19:38:25,706 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17874 to 17866.
[2023-12-25 19:38:25,721 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17866 states, 17865 states have (on average 1.6690736076126504) internal successors, (29818), 17865 states have internal predecessors, (29818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:25,738 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17866 states to 17866 states and 29818 transitions.
[2023-12-25 19:38:25,738 INFO  L78                 Accepts]: Start accepts. Automaton has 17866 states and 29818 transitions. Word has length 11621
[2023-12-25 19:38:25,740 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:38:25,740 INFO  L495      AbstractCegarLoop]: Abstraction has 17866 states and 29818 transitions.
[2023-12-25 19:38:25,743 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:25,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 17866 states and 29818 transitions.
[2023-12-25 19:38:26,629 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:38:26,629 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:38:26,632 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 19:38:26,770 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 19:38:26,834 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,SelfDestructingSolverStorable13
[2023-12-25 19:38:26,835 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:38:26,835 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:38:26,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 390953238, now seen corresponding path program 1 times
[2023-12-25 19:38:26,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:38:26,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383333236]
[2023-12-25 19:38:26,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:26,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:38:27,533 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:38:27,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898931794]
[2023-12-25 19:38:27,535 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:27,535 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:38:27,535 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:38:27,536 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 19:38:27,538 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 19:38:39,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:38:40,141 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52275 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:38:40,237 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:38:40,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:38:40,407 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:38:40,407 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:38:40,407 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383333236]
[2023-12-25 19:38:40,407 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:38:40,407 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898931794]
[2023-12-25 19:38:40,407 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [898931794] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:38:40,408 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:38:40,408 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:38:40,409 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936685885]
[2023-12-25 19:38:40,409 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:38:40,414 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:38:40,414 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:38:40,419 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:38:40,419 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:38:40,421 INFO  L87              Difference]: Start difference. First operand 17866 states and 29818 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:40,681 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:38:40,681 INFO  L93              Difference]: Finished difference Result 33878 states and 56547 transitions.
[2023-12-25 19:38:40,682 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:38:40,684 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:38:40,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:38:40,699 INFO  L225             Difference]: With dead ends: 33878
[2023-12-25 19:38:40,699 INFO  L226             Difference]: Without dead ends: 17875
[2023-12-25 19:38:40,711 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:38:40,711 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:38:40,711 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:38:40,725 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17875 states.
[2023-12-25 19:38:40,830 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17875 to 17867.
[2023-12-25 19:38:40,845 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17867 states, 17866 states have (on average 1.6690361580655995) internal successors, (29819), 17866 states have internal predecessors, (29819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:40,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17867 states to 17867 states and 29819 transitions.
[2023-12-25 19:38:40,982 INFO  L78                 Accepts]: Start accepts. Automaton has 17867 states and 29819 transitions. Word has length 11621
[2023-12-25 19:38:40,984 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:38:40,984 INFO  L495      AbstractCegarLoop]: Abstraction has 17867 states and 29819 transitions.
[2023-12-25 19:38:40,986 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:40,986 INFO  L276                IsEmpty]: Start isEmpty. Operand 17867 states and 29819 transitions.
[2023-12-25 19:38:41,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:38:41,704 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:38:41,706 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 19:38:41,838 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2023-12-25 19:38:41,908 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,SelfDestructingSolverStorable14
[2023-12-25 19:38:41,908 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:38:41,908 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:38:41,909 INFO  L85        PathProgramCache]: Analyzing trace with hash 1127429092, now seen corresponding path program 1 times
[2023-12-25 19:38:41,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:38:41,909 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297738410]
[2023-12-25 19:38:41,910 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:41,910 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:38:42,576 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:38:42,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393122393]
[2023-12-25 19:38:42,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:42,578 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:38:42,579 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:38:42,579 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 19:38:42,587 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 19:38:54,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:38:55,146 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52276 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:38:55,248 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:38:55,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:38:55,367 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:38:55,367 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:38:55,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297738410]
[2023-12-25 19:38:55,367 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:38:55,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393122393]
[2023-12-25 19:38:55,367 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [393122393] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:38:55,367 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:38:55,368 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:38:55,368 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504740]
[2023-12-25 19:38:55,368 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:38:55,374 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:38:55,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:38:55,378 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:38:55,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:38:55,379 INFO  L87              Difference]: Start difference. First operand 17867 states and 29819 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:55,723 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:38:55,723 INFO  L93              Difference]: Finished difference Result 33880 states and 56549 transitions.
[2023-12-25 19:38:55,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:38:55,725 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:38:55,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:38:55,741 INFO  L225             Difference]: With dead ends: 33880
[2023-12-25 19:38:55,741 INFO  L226             Difference]: Without dead ends: 17876
[2023-12-25 19:38:55,753 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:38:55,754 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:38:55,754 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:38:55,770 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17876 states.
[2023-12-25 19:38:55,880 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17876 to 17868.
[2023-12-25 19:38:55,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17868 states, 17867 states have (on average 1.6689987127105839) internal successors, (29820), 17867 states have internal predecessors, (29820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:55,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17868 states to 17868 states and 29820 transitions.
[2023-12-25 19:38:55,916 INFO  L78                 Accepts]: Start accepts. Automaton has 17868 states and 29820 transitions. Word has length 11621
[2023-12-25 19:38:55,919 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:38:55,919 INFO  L495      AbstractCegarLoop]: Abstraction has 17868 states and 29820 transitions.
[2023-12-25 19:38:55,921 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:55,921 INFO  L276                IsEmpty]: Start isEmpty. Operand 17868 states and 29820 transitions.
[2023-12-25 19:38:56,719 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:38:56,719 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:38:56,721 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 19:38:56,871 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2023-12-25 19:38:56,922 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,SelfDestructingSolverStorable15
[2023-12-25 19:38:56,922 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:38:56,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:38:56,923 INFO  L85        PathProgramCache]: Analyzing trace with hash -1533198926, now seen corresponding path program 1 times
[2023-12-25 19:38:56,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:38:56,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255567222]
[2023-12-25 19:38:56,924 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:56,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:38:57,614 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:38:57,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540763881]
[2023-12-25 19:38:57,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:38:57,617 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:38:57,617 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:38:57,618 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 19:38:57,618 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 19:39:09,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:39:10,236 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52277 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:39:10,333 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:39:10,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:39:10,449 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:39:10,449 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:39:10,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255567222]
[2023-12-25 19:39:10,449 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:39:10,449 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540763881]
[2023-12-25 19:39:10,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [540763881] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:39:10,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:39:10,450 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:39:10,450 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064595167]
[2023-12-25 19:39:10,450 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:39:10,455 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:39:10,455 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:39:10,460 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:39:10,460 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:39:10,461 INFO  L87              Difference]: Start difference. First operand 17868 states and 29820 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:10,830 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:39:10,830 INFO  L93              Difference]: Finished difference Result 33882 states and 56551 transitions.
[2023-12-25 19:39:10,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:39:10,832 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:39:10,835 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:39:10,848 INFO  L225             Difference]: With dead ends: 33882
[2023-12-25 19:39:10,848 INFO  L226             Difference]: Without dead ends: 17877
[2023-12-25 19:39:10,859 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:39:10,860 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 19:39:10,860 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 19:39:10,873 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17877 states.
[2023-12-25 19:39:10,993 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17877 to 17869.
[2023-12-25 19:39:11,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17869 states, 17868 states have (on average 1.6689612715468995) internal successors, (29821), 17868 states have internal predecessors, (29821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:11,026 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17869 states to 17869 states and 29821 transitions.
[2023-12-25 19:39:11,027 INFO  L78                 Accepts]: Start accepts. Automaton has 17869 states and 29821 transitions. Word has length 11621
[2023-12-25 19:39:11,029 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:39:11,029 INFO  L495      AbstractCegarLoop]: Abstraction has 17869 states and 29821 transitions.
[2023-12-25 19:39:11,031 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:11,031 INFO  L276                IsEmpty]: Start isEmpty. Operand 17869 states and 29821 transitions.
[2023-12-25 19:39:11,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:39:11,764 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:39:11,767 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 19:39:11,905 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2023-12-25 19:39:11,967 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:11,967 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:39:11,967 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:39:11,968 INFO  L85        PathProgramCache]: Analyzing trace with hash -620292480, now seen corresponding path program 1 times
[2023-12-25 19:39:11,968 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:39:11,969 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349165725]
[2023-12-25 19:39:11,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:11,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:39:12,648 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:39:12,648 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878093015]
[2023-12-25 19:39:12,651 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:12,651 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:12,651 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:39:12,651 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 19:39:12,652 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 19:39:24,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:39:25,193 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52278 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:39:25,297 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:39:25,496 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:39:25,496 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:39:25,496 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:39:25,496 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349165725]
[2023-12-25 19:39:25,496 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:39:25,496 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878093015]
[2023-12-25 19:39:25,496 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [878093015] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:39:25,496 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:39:25,497 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:39:25,497 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821430910]
[2023-12-25 19:39:25,497 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:39:25,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:39:25,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:39:25,506 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:39:25,506 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:39:25,507 INFO  L87              Difference]: Start difference. First operand 17869 states and 29821 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:25,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:39:25,813 INFO  L93              Difference]: Finished difference Result 33884 states and 56553 transitions.
[2023-12-25 19:39:25,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:39:25,815 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:39:25,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:39:25,829 INFO  L225             Difference]: With dead ends: 33884
[2023-12-25 19:39:25,829 INFO  L226             Difference]: Without dead ends: 17878
[2023-12-25 19:39:25,840 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:39:25,840 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:39:25,841 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:39:25,853 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17878 states.
[2023-12-25 19:39:25,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17878 to 17870.
[2023-12-25 19:39:25,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17870 states, 17869 states have (on average 1.668923834573843) internal successors, (29822), 17869 states have internal predecessors, (29822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:26,008 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17870 states to 17870 states and 29822 transitions.
[2023-12-25 19:39:26,008 INFO  L78                 Accepts]: Start accepts. Automaton has 17870 states and 29822 transitions. Word has length 11621
[2023-12-25 19:39:26,011 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:39:26,011 INFO  L495      AbstractCegarLoop]: Abstraction has 17870 states and 29822 transitions.
[2023-12-25 19:39:26,012 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:26,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 17870 states and 29822 transitions.
[2023-12-25 19:39:26,749 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:39:26,749 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:39:26,751 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 19:39:26,894 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 19:39:26,952 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,SelfDestructingSolverStorable17
[2023-12-25 19:39:26,952 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:39:26,952 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:39:26,953 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571569230, now seen corresponding path program 1 times
[2023-12-25 19:39:26,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:39:26,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102918946]
[2023-12-25 19:39:26,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:26,954 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:39:27,619 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:39:27,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97127461]
[2023-12-25 19:39:27,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:27,622 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:27,622 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:39:27,623 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 19:39:27,624 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 19:39:40,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:39:40,454 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52279 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:39:40,551 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:39:40,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:39:40,757 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:39:40,757 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:39:40,757 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102918946]
[2023-12-25 19:39:40,757 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:39:40,757 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97127461]
[2023-12-25 19:39:40,757 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [97127461] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:39:40,757 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:39:40,758 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:39:40,758 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676608645]
[2023-12-25 19:39:40,758 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:39:40,763 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:39:40,763 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:39:40,767 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:39:40,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:39:40,768 INFO  L87              Difference]: Start difference. First operand 17870 states and 29822 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:41,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:39:41,082 INFO  L93              Difference]: Finished difference Result 33886 states and 56555 transitions.
[2023-12-25 19:39:41,083 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:39:41,085 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:39:41,087 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:39:41,098 INFO  L225             Difference]: With dead ends: 33886
[2023-12-25 19:39:41,098 INFO  L226             Difference]: Without dead ends: 17879
[2023-12-25 19:39:41,106 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:39:41,106 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:39:41,106 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:39:41,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17879 states.
[2023-12-25 19:39:41,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17879 to 17871.
[2023-12-25 19:39:41,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17871 states, 17870 states have (on average 1.6688864017907108) internal successors, (29823), 17870 states have internal predecessors, (29823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:41,246 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17871 states to 17871 states and 29823 transitions.
[2023-12-25 19:39:41,246 INFO  L78                 Accepts]: Start accepts. Automaton has 17871 states and 29823 transitions. Word has length 11621
[2023-12-25 19:39:41,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:39:41,249 INFO  L495      AbstractCegarLoop]: Abstraction has 17871 states and 29823 transitions.
[2023-12-25 19:39:41,251 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:41,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 17871 states and 29823 transitions.
[2023-12-25 19:39:41,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:39:41,967 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:39:41,969 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 19:39:42,124 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 19:39:42,170 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:42,170 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:39:42,170 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:39:42,171 INFO  L85        PathProgramCache]: Analyzing trace with hash 1535653148, now seen corresponding path program 1 times
[2023-12-25 19:39:42,171 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:39:42,171 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472261318]
[2023-12-25 19:39:42,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:42,172 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:39:42,840 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:39:42,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112847748]
[2023-12-25 19:39:42,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:42,843 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:42,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:39:42,844 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 19:39:42,844 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 19:39:55,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:39:55,431 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52280 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:39:55,529 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:39:55,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:39:55,738 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:39:55,738 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:39:55,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472261318]
[2023-12-25 19:39:55,738 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:39:55,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112847748]
[2023-12-25 19:39:55,738 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112847748] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:39:55,738 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:39:55,739 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:39:55,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125922156]
[2023-12-25 19:39:55,739 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:39:55,744 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:39:55,744 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:39:55,748 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:39:55,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:39:55,749 INFO  L87              Difference]: Start difference. First operand 17871 states and 29823 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:56,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:39:56,017 INFO  L93              Difference]: Finished difference Result 33888 states and 56557 transitions.
[2023-12-25 19:39:56,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:39:56,022 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:39:56,025 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:39:56,039 INFO  L225             Difference]: With dead ends: 33888
[2023-12-25 19:39:56,040 INFO  L226             Difference]: Without dead ends: 17880
[2023-12-25 19:39:56,051 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:39:56,052 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:39:56,052 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:39:56,065 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17880 states.
[2023-12-25 19:39:56,235 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17880 to 17872.
[2023-12-25 19:39:56,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17872 states, 17871 states have (on average 1.6688489731967993) internal successors, (29824), 17871 states have internal predecessors, (29824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:56,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17872 states to 17872 states and 29824 transitions.
[2023-12-25 19:39:56,267 INFO  L78                 Accepts]: Start accepts. Automaton has 17872 states and 29824 transitions. Word has length 11621
[2023-12-25 19:39:56,270 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:39:56,270 INFO  L495      AbstractCegarLoop]: Abstraction has 17872 states and 29824 transitions.
[2023-12-25 19:39:56,271 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:39:56,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 17872 states and 29824 transitions.
[2023-12-25 19:39:56,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:39:56,984 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:39:56,987 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 19:39:57,124 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2023-12-25 19:39:57,187 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:57,187 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:39:57,188 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:39:57,188 INFO  L85        PathProgramCache]: Analyzing trace with hash 2072012266, now seen corresponding path program 1 times
[2023-12-25 19:39:57,189 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:39:57,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855439556]
[2023-12-25 19:39:57,190 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:57,190 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:39:57,858 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:39:57,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011100572]
[2023-12-25 19:39:57,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:39:57,860 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:39:57,860 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:39:57,861 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 19:39:57,862 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 19:40:10,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:40:10,431 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52281 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:40:10,531 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:40:10,664 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:40:10,664 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:40:10,664 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:40:10,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855439556]
[2023-12-25 19:40:10,664 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:40:10,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011100572]
[2023-12-25 19:40:10,664 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011100572] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:40:10,664 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:40:10,665 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:40:10,665 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566526817]
[2023-12-25 19:40:10,665 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:40:10,670 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:40:10,670 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:40:10,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:40:10,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:40:10,675 INFO  L87              Difference]: Start difference. First operand 17872 states and 29824 transitions. Second operand  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:11,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:40:11,038 INFO  L93              Difference]: Finished difference Result 33890 states and 56559 transitions.
[2023-12-25 19:40:11,040 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:40:11,042 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:40:11,048 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:40:11,060 INFO  L225             Difference]: With dead ends: 33890
[2023-12-25 19:40:11,060 INFO  L226             Difference]: Without dead ends: 17881
[2023-12-25 19:40:11,073 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11620 GetRequests, 11618 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 19:40:11,073 INFO  L413           NwaCegarLoop]: 27292 mSDtfsCounter, 12 mSDsluCounter, 54574 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 81866 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:40:11,073 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 81866 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:40:11,087 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17881 states.
[2023-12-25 19:40:11,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17881 to 17873.
[2023-12-25 19:40:11,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17873 states, 17872 states have (on average 1.6688115487914055) internal successors, (29825), 17872 states have internal predecessors, (29825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:11,224 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17873 states to 17873 states and 29825 transitions.
[2023-12-25 19:40:11,224 INFO  L78                 Accepts]: Start accepts. Automaton has 17873 states and 29825 transitions. Word has length 11621
[2023-12-25 19:40:11,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:40:11,229 INFO  L495      AbstractCegarLoop]: Abstraction has 17873 states and 29825 transitions.
[2023-12-25 19:40:11,230 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2905.25) internal successors, (11621), 4 states have internal predecessors, (11621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:11,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 17873 states and 29825 transitions.
[2023-12-25 19:40:11,972 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11622
[2023-12-25 19:40:11,972 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:40:11,975 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 19:40:12,112 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2023-12-25 19:40:12,175 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:40:12,175 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:40:12,175 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:40:12,176 INFO  L85        PathProgramCache]: Analyzing trace with hash 557043640, now seen corresponding path program 1 times
[2023-12-25 19:40:12,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:40:12,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59490479]
[2023-12-25 19:40:12,177 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:40:12,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:40:12,873 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:40:12,874 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141665807]
[2023-12-25 19:40:12,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:40:12,876 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:40:12,876 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:40:12,877 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 19:40:12,881 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 19:40:25,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:40:25,793 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52282 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:40:25,945 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:40:26,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked.
[2023-12-25 19:40:26,442 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:40:26,442 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:40:26,442 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59490479]
[2023-12-25 19:40:26,442 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:40:26,442 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141665807]
[2023-12-25 19:40:26,442 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141665807] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:40:26,442 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:40:26,443 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:40:26,443 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118406107]
[2023-12-25 19:40:26,443 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:40:26,449 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:40:26,449 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:40:26,453 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:40:26,454 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:40:26,455 INFO  L87              Difference]: Start difference. First operand 17873 states and 29825 transitions. Second operand  has 7 states, 7 states have (on average 1517.142857142857) internal successors, (10620), 7 states have internal predecessors, (10620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:27,248 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:40:27,249 INFO  L93              Difference]: Finished difference Result 49890 states and 83263 transitions.
[2023-12-25 19:40:27,250 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:40:27,252 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1517.142857142857) internal successors, (10620), 7 states have internal predecessors, (10620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11621
[2023-12-25 19:40:27,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:40:27,288 INFO  L225             Difference]: With dead ends: 49890
[2023-12-25 19:40:27,288 INFO  L226             Difference]: Without dead ends: 33880
[2023-12-25 19:40:27,306 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11630 GetRequests, 11618 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:40:27,306 INFO  L413           NwaCegarLoop]: 29794 mSDtfsCounter, 77938 mSDsluCounter, 116656 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77938 SdHoareTripleChecker+Valid, 146450 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:40:27,307 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77938 Valid, 146450 Invalid, 47 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:40:27,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33880 states.
[2023-12-25 19:40:27,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33880 to 17873.
[2023-12-25 19:40:27,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17873 states, 17872 states have (on average 1.6688115487914055) internal successors, (29825), 17872 states have internal predecessors, (29825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:27,584 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17873 states to 17873 states and 29825 transitions.
[2023-12-25 19:40:27,585 INFO  L78                 Accepts]: Start accepts. Automaton has 17873 states and 29825 transitions. Word has length 11621
[2023-12-25 19:40:27,589 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:40:27,590 INFO  L495      AbstractCegarLoop]: Abstraction has 17873 states and 29825 transitions.
[2023-12-25 19:40:27,591 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1517.142857142857) internal successors, (10620), 7 states have internal predecessors, (10620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:27,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 17873 states and 29825 transitions.
[2023-12-25 19:40:28,354 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11623
[2023-12-25 19:40:28,354 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:40:28,356 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 19:40:28,517 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2023-12-25 19:40:28,560 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:40:28,560 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:40:28,561 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:40:28,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 1686610432, now seen corresponding path program 1 times
[2023-12-25 19:40:28,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:40:28,562 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164925219]
[2023-12-25 19:40:28,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:40:28,563 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:40:29,289 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:40:29,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127254476]
[2023-12-25 19:40:29,291 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:40:29,291 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:40:29,291 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:40:29,292 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 19:40:29,293 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 19:40:41,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:40:42,144 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52285 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:40:42,263 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:40:42,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked.
[2023-12-25 19:40:42,722 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:40:42,722 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:40:42,722 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164925219]
[2023-12-25 19:40:42,722 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:40:42,722 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127254476]
[2023-12-25 19:40:42,722 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127254476] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:40:42,722 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:40:42,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:40:42,723 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509546178]
[2023-12-25 19:40:42,723 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:40:42,729 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:40:42,729 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:40:42,733 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:40:42,733 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:40:42,734 INFO  L87              Difference]: Start difference. First operand 17873 states and 29825 transitions. Second operand  has 7 states, 7 states have (on average 1517.5714285714287) internal successors, (10623), 7 states have internal predecessors, (10623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:43,485 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:40:43,485 INFO  L93              Difference]: Finished difference Result 49892 states and 83265 transitions.
[2023-12-25 19:40:43,485 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:40:43,487 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1517.5714285714287) internal successors, (10623), 7 states have internal predecessors, (10623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11622
[2023-12-25 19:40:43,494 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:40:43,519 INFO  L225             Difference]: With dead ends: 49892
[2023-12-25 19:40:43,519 INFO  L226             Difference]: Without dead ends: 33879
[2023-12-25 19:40:43,530 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11631 GetRequests, 11619 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:40:43,531 INFO  L413           NwaCegarLoop]: 29789 mSDtfsCounter, 77937 mSDsluCounter, 116640 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77937 SdHoareTripleChecker+Valid, 146429 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:40:43,531 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77937 Valid, 146429 Invalid, 48 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:40:43,552 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33879 states.
[2023-12-25 19:40:43,697 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33879 to 17875.
[2023-12-25 19:40:43,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17875 states, 17874 states have (on average 1.668736712543359) internal successors, (29827), 17874 states have internal predecessors, (29827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:43,729 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17875 states to 17875 states and 29827 transitions.
[2023-12-25 19:40:43,729 INFO  L78                 Accepts]: Start accepts. Automaton has 17875 states and 29827 transitions. Word has length 11622
[2023-12-25 19:40:43,734 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:40:43,734 INFO  L495      AbstractCegarLoop]: Abstraction has 17875 states and 29827 transitions.
[2023-12-25 19:40:43,735 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1517.5714285714287) internal successors, (10623), 7 states have internal predecessors, (10623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:43,735 INFO  L276                IsEmpty]: Start isEmpty. Operand 17875 states and 29827 transitions.
[2023-12-25 19:40:44,514 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11624
[2023-12-25 19:40:44,514 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:40:44,517 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 19:40:44,683 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 19:40:44,717 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,SelfDestructingSolverStorable22
[2023-12-25 19:40:44,717 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:40:44,718 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:40:44,719 INFO  L85        PathProgramCache]: Analyzing trace with hash -2039621294, now seen corresponding path program 1 times
[2023-12-25 19:40:44,719 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:40:44,719 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060486388]
[2023-12-25 19:40:44,720 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:40:44,720 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:40:45,469 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:40:45,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831921256]
[2023-12-25 19:40:45,471 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:40:45,471 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:40:45,472 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:40:45,472 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 19:40:45,473 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 19:40:58,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:40:58,469 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52288 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:40:58,587 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:40:58,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked.
[2023-12-25 19:40:58,990 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:40:58,990 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:40:58,990 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060486388]
[2023-12-25 19:40:58,991 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:40:58,991 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831921256]
[2023-12-25 19:40:58,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831921256] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:40:58,991 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:40:58,991 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:40:58,992 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166194778]
[2023-12-25 19:40:58,992 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:40:58,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:40:58,997 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:40:59,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:40:59,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:40:59,001 INFO  L87              Difference]: Start difference. First operand 17875 states and 29827 transitions. Second operand  has 7 states, 7 states have (on average 1518.0) internal successors, (10626), 7 states have internal predecessors, (10626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:40:59,739 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:40:59,739 INFO  L93              Difference]: Finished difference Result 49898 states and 83271 transitions.
[2023-12-25 19:40:59,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:40:59,742 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1518.0) internal successors, (10626), 7 states have internal predecessors, (10626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11623
[2023-12-25 19:40:59,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:40:59,774 INFO  L225             Difference]: With dead ends: 49898
[2023-12-25 19:40:59,774 INFO  L226             Difference]: Without dead ends: 33880
[2023-12-25 19:40:59,789 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11632 GetRequests, 11620 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:40:59,789 INFO  L413           NwaCegarLoop]: 29784 mSDtfsCounter, 77936 mSDsluCounter, 116625 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77936 SdHoareTripleChecker+Valid, 146409 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:40:59,789 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77936 Valid, 146409 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:40:59,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33880 states.
[2023-12-25 19:41:00,056 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33880 to 17877.
[2023-12-25 19:41:00,070 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17877 states, 17876 states have (on average 1.6686618930409487) internal successors, (29829), 17876 states have internal predecessors, (29829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:00,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17877 states to 17877 states and 29829 transitions.
[2023-12-25 19:41:00,087 INFO  L78                 Accepts]: Start accepts. Automaton has 17877 states and 29829 transitions. Word has length 11623
[2023-12-25 19:41:00,092 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:41:00,092 INFO  L495      AbstractCegarLoop]: Abstraction has 17877 states and 29829 transitions.
[2023-12-25 19:41:00,093 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1518.0) internal successors, (10626), 7 states have internal predecessors, (10626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:00,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 17877 states and 29829 transitions.
[2023-12-25 19:41:00,822 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11625
[2023-12-25 19:41:00,822 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:41:00,824 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 19:41:00,981 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 19:41:01,024 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,SelfDestructingSolverStorable23
[2023-12-25 19:41:01,025 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:41:01,025 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:41:01,026 INFO  L85        PathProgramCache]: Analyzing trace with hash 1424001316, now seen corresponding path program 1 times
[2023-12-25 19:41:01,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:41:01,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251426301]
[2023-12-25 19:41:01,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:01,027 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:41:01,747 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:41:01,747 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61983927]
[2023-12-25 19:41:01,749 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:01,749 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:41:01,750 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:41:01,750 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 19:41:01,752 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 19:41:14,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:41:14,788 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52292 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:41:14,971 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:41:15,355 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked.
[2023-12-25 19:41:15,355 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:41:15,355 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:41:15,355 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251426301]
[2023-12-25 19:41:15,355 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:41:15,355 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61983927]
[2023-12-25 19:41:15,355 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [61983927] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:41:15,356 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:41:15,356 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:41:15,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803352103]
[2023-12-25 19:41:15,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:41:15,362 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:41:15,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:41:15,365 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:41:15,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:41:15,366 INFO  L87              Difference]: Start difference. First operand 17877 states and 29829 transitions. Second operand  has 7 states, 7 states have (on average 1518.4285714285713) internal successors, (10629), 7 states have internal predecessors, (10629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:16,112 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:41:16,112 INFO  L93              Difference]: Finished difference Result 49904 states and 83277 transitions.
[2023-12-25 19:41:16,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:41:16,115 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1518.4285714285713) internal successors, (10629), 7 states have internal predecessors, (10629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11624
[2023-12-25 19:41:16,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:41:16,148 INFO  L225             Difference]: With dead ends: 49904
[2023-12-25 19:41:16,148 INFO  L226             Difference]: Without dead ends: 33881
[2023-12-25 19:41:16,160 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11633 GetRequests, 11621 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:41:16,160 INFO  L413           NwaCegarLoop]: 29779 mSDtfsCounter, 77935 mSDsluCounter, 116610 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77935 SdHoareTripleChecker+Valid, 146389 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:41:16,161 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77935 Valid, 146389 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:41:16,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33881 states.
[2023-12-25 19:41:16,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33881 to 17879.
[2023-12-25 19:41:16,349 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17879 states, 17878 states have (on average 1.6685870902785547) internal successors, (29831), 17878 states have internal predecessors, (29831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:16,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17879 states to 17879 states and 29831 transitions.
[2023-12-25 19:41:16,366 INFO  L78                 Accepts]: Start accepts. Automaton has 17879 states and 29831 transitions. Word has length 11624
[2023-12-25 19:41:16,371 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:41:16,371 INFO  L495      AbstractCegarLoop]: Abstraction has 17879 states and 29831 transitions.
[2023-12-25 19:41:16,372 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1518.4285714285713) internal successors, (10629), 7 states have internal predecessors, (10629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:16,373 INFO  L276                IsEmpty]: Start isEmpty. Operand 17879 states and 29831 transitions.
[2023-12-25 19:41:17,181 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11626
[2023-12-25 19:41:17,181 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:41:17,183 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 19:41:17,339 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 19:41:17,383 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:41:17,384 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:41:17,384 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:41:17,385 INFO  L85        PathProgramCache]: Analyzing trace with hash -505447254, now seen corresponding path program 1 times
[2023-12-25 19:41:17,385 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:41:17,385 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273533851]
[2023-12-25 19:41:17,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:17,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:41:18,080 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:41:18,080 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694282530]
[2023-12-25 19:41:18,082 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:18,082 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:41:18,082 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:41:18,083 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 19:41:18,084 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 19:41:30,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:41:31,125 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52295 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:41:31,305 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:41:31,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked.
[2023-12-25 19:41:31,632 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:41:31,632 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:41:31,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273533851]
[2023-12-25 19:41:31,632 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:41:31,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694282530]
[2023-12-25 19:41:31,633 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694282530] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:41:31,633 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:41:31,634 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:41:31,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280725542]
[2023-12-25 19:41:31,634 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:41:31,639 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:41:31,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:41:31,643 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:41:31,643 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:41:31,645 INFO  L87              Difference]: Start difference. First operand 17879 states and 29831 transitions. Second operand  has 7 states, 7 states have (on average 1518.857142857143) internal successors, (10632), 7 states have internal predecessors, (10632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:32,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:41:32,446 INFO  L93              Difference]: Finished difference Result 49910 states and 83283 transitions.
[2023-12-25 19:41:32,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:41:32,448 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1518.857142857143) internal successors, (10632), 7 states have internal predecessors, (10632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11625
[2023-12-25 19:41:32,454 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:41:32,481 INFO  L225             Difference]: With dead ends: 49910
[2023-12-25 19:41:32,482 INFO  L226             Difference]: Without dead ends: 33882
[2023-12-25 19:41:32,492 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11634 GetRequests, 11622 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:41:32,493 INFO  L413           NwaCegarLoop]: 29774 mSDtfsCounter, 77934 mSDsluCounter, 116595 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77934 SdHoareTripleChecker+Valid, 146369 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:41:32,493 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77934 Valid, 146369 Invalid, 48 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:41:32,518 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33882 states.
[2023-12-25 19:41:32,669 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33882 to 17881.
[2023-12-25 19:41:32,684 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17881 states, 17880 states have (on average 1.6685123042505592) internal successors, (29833), 17880 states have internal predecessors, (29833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:32,701 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17881 states to 17881 states and 29833 transitions.
[2023-12-25 19:41:32,701 INFO  L78                 Accepts]: Start accepts. Automaton has 17881 states and 29833 transitions. Word has length 11625
[2023-12-25 19:41:32,706 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:41:32,706 INFO  L495      AbstractCegarLoop]: Abstraction has 17881 states and 29833 transitions.
[2023-12-25 19:41:32,707 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1518.857142857143) internal successors, (10632), 7 states have internal predecessors, (10632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:32,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 17881 states and 29833 transitions.
[2023-12-25 19:41:33,510 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11627
[2023-12-25 19:41:33,510 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:41:33,512 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 19:41:33,671 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0
[2023-12-25 19:41:33,713 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:41:33,713 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:41:33,713 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:41:33,714 INFO  L85        PathProgramCache]: Analyzing trace with hash -1444591990, now seen corresponding path program 1 times
[2023-12-25 19:41:33,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:41:33,714 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13057770]
[2023-12-25 19:41:33,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:33,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:41:34,478 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:41:34,478 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135520656]
[2023-12-25 19:41:34,480 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:34,480 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:41:34,480 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:41:34,481 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 19:41:34,482 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 19:41:47,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:41:47,544 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52298 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:41:47,659 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:41:48,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked.
[2023-12-25 19:41:48,052 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:41:48,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:41:48,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13057770]
[2023-12-25 19:41:48,052 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:41:48,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135520656]
[2023-12-25 19:41:48,052 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135520656] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:41:48,052 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:41:48,053 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:41:48,053 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47022167]
[2023-12-25 19:41:48,053 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:41:48,058 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:41:48,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:41:48,062 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:41:48,062 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:41:48,063 INFO  L87              Difference]: Start difference. First operand 17881 states and 29833 transitions. Second operand  has 7 states, 7 states have (on average 1519.2857142857142) internal successors, (10635), 7 states have internal predecessors, (10635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:48,760 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:41:48,760 INFO  L93              Difference]: Finished difference Result 49916 states and 83289 transitions.
[2023-12-25 19:41:48,760 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:41:48,762 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1519.2857142857142) internal successors, (10635), 7 states have internal predecessors, (10635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11626
[2023-12-25 19:41:48,769 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:41:48,911 INFO  L225             Difference]: With dead ends: 49916
[2023-12-25 19:41:48,911 INFO  L226             Difference]: Without dead ends: 33883
[2023-12-25 19:41:48,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11635 GetRequests, 11623 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:41:48,918 INFO  L413           NwaCegarLoop]: 29769 mSDtfsCounter, 77933 mSDsluCounter, 116580 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77933 SdHoareTripleChecker+Valid, 146349 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:41:48,918 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77933 Valid, 146349 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:41:48,939 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33883 states.
[2023-12-25 19:41:49,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33883 to 17883.
[2023-12-25 19:41:49,106 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17883 states, 17882 states have (on average 1.6684375349513478) internal successors, (29835), 17882 states have internal predecessors, (29835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:49,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17883 states to 17883 states and 29835 transitions.
[2023-12-25 19:41:49,124 INFO  L78                 Accepts]: Start accepts. Automaton has 17883 states and 29835 transitions. Word has length 11626
[2023-12-25 19:41:49,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:41:49,129 INFO  L495      AbstractCegarLoop]: Abstraction has 17883 states and 29835 transitions.
[2023-12-25 19:41:49,130 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1519.2857142857142) internal successors, (10635), 7 states have internal predecessors, (10635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:41:49,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 17883 states and 29835 transitions.
[2023-12-25 19:41:49,924 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11628
[2023-12-25 19:41:49,924 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:41:49,926 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 19:41:50,083 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 19:41:50,126 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,SelfDestructingSolverStorable26
[2023-12-25 19:41:50,127 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:41:50,127 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:41:50,128 INFO  L85        PathProgramCache]: Analyzing trace with hash 1988780612, now seen corresponding path program 1 times
[2023-12-25 19:41:50,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:41:50,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917450938]
[2023-12-25 19:41:50,129 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:50,129 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:41:50,826 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:41:50,827 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456135806]
[2023-12-25 19:41:50,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:41:50,829 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:41:50,829 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:41:50,830 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 19:41:50,830 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 19:42:03,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:42:04,033 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52301 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 19:42:04,151 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:42:04,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked.
[2023-12-25 19:42:04,536 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:42:04,536 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:42:04,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917450938]
[2023-12-25 19:42:04,537 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:42:04,537 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456135806]
[2023-12-25 19:42:04,537 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [456135806] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:42:04,537 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:42:04,538 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 19:42:04,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743605120]
[2023-12-25 19:42:04,538 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:42:04,543 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 19:42:04,543 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:42:04,547 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 19:42:04,547 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 19:42:04,549 INFO  L87              Difference]: Start difference. First operand 17883 states and 29835 transitions. Second operand  has 8 states, 8 states have (on average 1329.75) internal successors, (10638), 8 states have internal predecessors, (10638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:05,397 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:42:05,397 INFO  L93              Difference]: Finished difference Result 49922 states and 83295 transitions.
[2023-12-25 19:42:05,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:42:05,399 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 1329.75) internal successors, (10638), 8 states have internal predecessors, (10638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11627
[2023-12-25 19:42:05,406 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:42:05,435 INFO  L225             Difference]: With dead ends: 49922
[2023-12-25 19:42:05,435 INFO  L226             Difference]: Without dead ends: 33884
[2023-12-25 19:42:05,450 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11636 GetRequests, 11623 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2023-12-25 19:42:05,450 INFO  L413           NwaCegarLoop]: 29764 mSDtfsCounter, 77932 mSDsluCounter, 146326 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77932 SdHoareTripleChecker+Valid, 176090 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:42:05,451 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77932 Valid, 176090 Invalid, 59 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:42:05,475 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33884 states.
[2023-12-25 19:42:05,756 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33884 to 17885.
[2023-12-25 19:42:05,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17885 states, 17884 states have (on average 1.6683627823753076) internal successors, (29837), 17884 states have internal predecessors, (29837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:05,790 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17885 states to 17885 states and 29837 transitions.
[2023-12-25 19:42:05,790 INFO  L78                 Accepts]: Start accepts. Automaton has 17885 states and 29837 transitions. Word has length 11627
[2023-12-25 19:42:05,796 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:42:05,796 INFO  L495      AbstractCegarLoop]: Abstraction has 17885 states and 29837 transitions.
[2023-12-25 19:42:05,798 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 1329.75) internal successors, (10638), 8 states have internal predecessors, (10638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:05,798 INFO  L276                IsEmpty]: Start isEmpty. Operand 17885 states and 29837 transitions.
[2023-12-25 19:42:06,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11629
[2023-12-25 19:42:06,550 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:42:06,552 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 19:42:06,728 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 19:42:06,752 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,SelfDestructingSolverStorable27
[2023-12-25 19:42:06,753 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:42:06,753 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:42:06,754 INFO  L85        PathProgramCache]: Analyzing trace with hash -2018343762, now seen corresponding path program 1 times
[2023-12-25 19:42:06,754 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:42:06,754 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687050749]
[2023-12-25 19:42:06,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:06,755 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:42:07,522 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:42:07,522 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898707068]
[2023-12-25 19:42:07,524 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:07,524 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:42:07,525 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:42:07,525 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 19:42:07,526 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 19:42:20,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:42:20,728 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52305 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:42:20,853 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:42:21,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked.
[2023-12-25 19:42:21,276 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:42:21,276 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:42:21,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687050749]
[2023-12-25 19:42:21,277 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:42:21,277 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898707068]
[2023-12-25 19:42:21,277 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [898707068] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:42:21,277 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:42:21,278 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:42:21,278 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694622617]
[2023-12-25 19:42:21,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:42:21,284 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:42:21,285 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:42:21,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:42:21,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:42:21,294 INFO  L87              Difference]: Start difference. First operand 17885 states and 29837 transitions. Second operand  has 7 states, 7 states have (on average 1520.142857142857) internal successors, (10641), 7 states have internal predecessors, (10641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:22,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:42:22,093 INFO  L93              Difference]: Finished difference Result 49928 states and 83301 transitions.
[2023-12-25 19:42:22,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:42:22,096 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1520.142857142857) internal successors, (10641), 7 states have internal predecessors, (10641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11628
[2023-12-25 19:42:22,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:42:22,140 INFO  L225             Difference]: With dead ends: 49928
[2023-12-25 19:42:22,140 INFO  L226             Difference]: Without dead ends: 33885
[2023-12-25 19:42:22,163 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11637 GetRequests, 11625 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:42:22,164 INFO  L413           NwaCegarLoop]: 29759 mSDtfsCounter, 77931 mSDsluCounter, 116550 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77931 SdHoareTripleChecker+Valid, 146309 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:42:22,164 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77931 Valid, 146309 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:42:22,196 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33885 states.
[2023-12-25 19:42:22,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33885 to 17887.
[2023-12-25 19:42:22,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17887 states, 17886 states have (on average 1.6682880465168288) internal successors, (29839), 17886 states have internal predecessors, (29839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:22,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17887 states to 17887 states and 29839 transitions.
[2023-12-25 19:42:22,494 INFO  L78                 Accepts]: Start accepts. Automaton has 17887 states and 29839 transitions. Word has length 11628
[2023-12-25 19:42:22,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:42:22,501 INFO  L495      AbstractCegarLoop]: Abstraction has 17887 states and 29839 transitions.
[2023-12-25 19:42:22,503 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1520.142857142857) internal successors, (10641), 7 states have internal predecessors, (10641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:22,503 INFO  L276                IsEmpty]: Start isEmpty. Operand 17887 states and 29839 transitions.
[2023-12-25 19:42:23,269 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11630
[2023-12-25 19:42:23,269 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:42:23,271 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 19:42:23,441 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 19:42:23,471 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2023-12-25 19:42:23,472 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:42:23,472 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:42:23,473 INFO  L85        PathProgramCache]: Analyzing trace with hash 868054172, now seen corresponding path program 1 times
[2023-12-25 19:42:23,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:42:23,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454745294]
[2023-12-25 19:42:23,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:23,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:42:24,291 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:42:24,291 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469985047]
[2023-12-25 19:42:24,294 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:24,294 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:42:24,294 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:42:24,295 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 19:42:24,297 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 19:42:37,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:42:38,368 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52308 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:42:38,501 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:42:38,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked.
[2023-12-25 19:42:38,913 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:42:38,913 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:42:38,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454745294]
[2023-12-25 19:42:38,913 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:42:38,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469985047]
[2023-12-25 19:42:38,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [469985047] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:42:38,913 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:42:38,914 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:42:38,914 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087288861]
[2023-12-25 19:42:38,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:42:38,919 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:42:38,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:42:38,923 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:42:38,923 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:42:38,924 INFO  L87              Difference]: Start difference. First operand 17887 states and 29839 transitions. Second operand  has 7 states, 7 states have (on average 1520.5714285714287) internal successors, (10644), 7 states have internal predecessors, (10644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:39,747 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:42:39,747 INFO  L93              Difference]: Finished difference Result 49934 states and 83307 transitions.
[2023-12-25 19:42:39,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:42:39,749 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1520.5714285714287) internal successors, (10644), 7 states have internal predecessors, (10644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11629
[2023-12-25 19:42:39,756 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:42:39,780 INFO  L225             Difference]: With dead ends: 49934
[2023-12-25 19:42:39,780 INFO  L226             Difference]: Without dead ends: 33886
[2023-12-25 19:42:39,790 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11638 GetRequests, 11626 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:42:39,790 INFO  L413           NwaCegarLoop]: 29754 mSDtfsCounter, 77930 mSDsluCounter, 116535 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77930 SdHoareTripleChecker+Valid, 146289 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:42:39,790 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77930 Valid, 146289 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:42:39,816 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33886 states.
[2023-12-25 19:42:39,968 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33886 to 17889.
[2023-12-25 19:42:39,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17889 states, 17888 states have (on average 1.6682133273703041) internal successors, (29841), 17888 states have internal predecessors, (29841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:40,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17889 states to 17889 states and 29841 transitions.
[2023-12-25 19:42:40,004 INFO  L78                 Accepts]: Start accepts. Automaton has 17889 states and 29841 transitions. Word has length 11629
[2023-12-25 19:42:40,010 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:42:40,010 INFO  L495      AbstractCegarLoop]: Abstraction has 17889 states and 29841 transitions.
[2023-12-25 19:42:40,012 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1520.5714285714287) internal successors, (10644), 7 states have internal predecessors, (10644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:40,012 INFO  L276                IsEmpty]: Start isEmpty. Operand 17889 states and 29841 transitions.
[2023-12-25 19:42:40,805 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11631
[2023-12-25 19:42:40,805 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:42:40,808 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]
[2023-12-25 19:42:40,987 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 19:42:41,008 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:42:41,008 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:42:41,009 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:42:41,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1004861932, now seen corresponding path program 1 times
[2023-12-25 19:42:41,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:42:41,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106016044]
[2023-12-25 19:42:41,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:41,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:42:41,725 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:42:41,726 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568849547]
[2023-12-25 19:42:41,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:41,728 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:42:41,728 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:42:41,729 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 19:42:41,730 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 19:42:54,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:42:55,126 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52311 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:42:55,251 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:42:55,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked.
[2023-12-25 19:42:55,675 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:42:55,675 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:42:55,675 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106016044]
[2023-12-25 19:42:55,676 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:42:55,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568849547]
[2023-12-25 19:42:55,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [568849547] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:42:55,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:42:55,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:42:55,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158232992]
[2023-12-25 19:42:55,677 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:42:55,684 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:42:55,684 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:42:55,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:42:55,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:42:55,692 INFO  L87              Difference]: Start difference. First operand 17889 states and 29841 transitions. Second operand  has 7 states, 7 states have (on average 1521.0) internal successors, (10647), 7 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:56,515 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:42:56,515 INFO  L93              Difference]: Finished difference Result 49940 states and 83313 transitions.
[2023-12-25 19:42:56,515 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:42:56,518 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1521.0) internal successors, (10647), 7 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11630
[2023-12-25 19:42:56,525 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:42:56,558 INFO  L225             Difference]: With dead ends: 49940
[2023-12-25 19:42:56,558 INFO  L226             Difference]: Without dead ends: 33887
[2023-12-25 19:42:56,577 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11639 GetRequests, 11627 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:42:56,578 INFO  L413           NwaCegarLoop]: 29749 mSDtfsCounter, 77929 mSDsluCounter, 116520 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77929 SdHoareTripleChecker+Valid, 146269 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:42:56,578 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77929 Valid, 146269 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:42:56,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33887 states.
[2023-12-25 19:42:56,782 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33887 to 17891.
[2023-12-25 19:42:56,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17891 states, 17890 states have (on average 1.6681386249301287) internal successors, (29843), 17890 states have internal predecessors, (29843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:56,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17891 states to 17891 states and 29843 transitions.
[2023-12-25 19:42:56,818 INFO  L78                 Accepts]: Start accepts. Automaton has 17891 states and 29843 transitions. Word has length 11630
[2023-12-25 19:42:56,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:42:56,823 INFO  L495      AbstractCegarLoop]: Abstraction has 17891 states and 29843 transitions.
[2023-12-25 19:42:56,824 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1521.0) internal successors, (10647), 7 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:42:56,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 17891 states and 29843 transitions.
[2023-12-25 19:42:57,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11632
[2023-12-25 19:42:57,667 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:42:57,669 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]
[2023-12-25 19:42:57,844 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 19:42:57,872 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:42:57,872 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:42:57,873 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:42:57,874 INFO  L85        PathProgramCache]: Analyzing trace with hash 1811789366, now seen corresponding path program 1 times
[2023-12-25 19:42:57,874 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:42:57,874 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650369334]
[2023-12-25 19:42:57,875 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:57,875 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:42:58,685 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:42:58,685 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496647274]
[2023-12-25 19:42:58,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:42:58,687 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:42:58,688 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:42:58,688 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 19:42:58,689 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 19:43:11,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:43:12,259 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52314 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:43:12,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:43:12,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked.
[2023-12-25 19:43:12,778 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:43:12,778 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:43:12,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650369334]
[2023-12-25 19:43:12,778 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:43:12,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496647274]
[2023-12-25 19:43:12,778 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [496647274] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:43:12,778 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:43:12,779 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:43:12,779 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997214073]
[2023-12-25 19:43:12,779 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:43:12,784 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:43:12,784 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:43:12,789 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:43:12,789 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:43:12,792 INFO  L87              Difference]: Start difference. First operand 17891 states and 29843 transitions. Second operand  has 7 states, 7 states have (on average 1521.4285714285713) internal successors, (10650), 7 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:13,613 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:43:13,613 INFO  L93              Difference]: Finished difference Result 49946 states and 83319 transitions.
[2023-12-25 19:43:13,614 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:43:13,616 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1521.4285714285713) internal successors, (10650), 7 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11631
[2023-12-25 19:43:13,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:43:13,654 INFO  L225             Difference]: With dead ends: 49946
[2023-12-25 19:43:13,654 INFO  L226             Difference]: Without dead ends: 33888
[2023-12-25 19:43:13,667 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11640 GetRequests, 11628 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:43:13,668 INFO  L413           NwaCegarLoop]: 29744 mSDtfsCounter, 77928 mSDsluCounter, 116505 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77928 SdHoareTripleChecker+Valid, 146249 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:43:13,668 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77928 Valid, 146249 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:43:13,697 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33888 states.
[2023-12-25 19:43:13,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33888 to 17893.
[2023-12-25 19:43:13,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17893 states, 17892 states have (on average 1.6680639391906997) internal successors, (29845), 17892 states have internal predecessors, (29845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:13,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17893 states to 17893 states and 29845 transitions.
[2023-12-25 19:43:13,926 INFO  L78                 Accepts]: Start accepts. Automaton has 17893 states and 29845 transitions. Word has length 11631
[2023-12-25 19:43:13,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:43:13,932 INFO  L495      AbstractCegarLoop]: Abstraction has 17893 states and 29845 transitions.
[2023-12-25 19:43:13,934 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1521.4285714285713) internal successors, (10650), 7 states have internal predecessors, (10650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:13,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 17893 states and 29845 transitions.
[2023-12-25 19:43:14,768 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11633
[2023-12-25 19:43:14,768 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:43:14,771 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]
[2023-12-25 19:43:14,956 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0
[2023-12-25 19:43:14,971 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:43:14,971 INFO  L420      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:43:14,972 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:43:14,972 INFO  L85        PathProgramCache]: Analyzing trace with hash 1473485624, now seen corresponding path program 1 times
[2023-12-25 19:43:14,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:43:14,973 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054726187]
[2023-12-25 19:43:14,974 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:43:14,974 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:43:15,678 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:43:15,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540314044]
[2023-12-25 19:43:15,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:43:15,681 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:43:15,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:43:15,682 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 19:43:15,682 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 19:43:28,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:43:29,338 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52318 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:43:29,459 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:43:29,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked.
[2023-12-25 19:43:29,909 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:43:29,909 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:43:29,909 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054726187]
[2023-12-25 19:43:29,909 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:43:29,909 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540314044]
[2023-12-25 19:43:29,909 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [540314044] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:43:29,909 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:43:29,910 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:43:29,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093246006]
[2023-12-25 19:43:29,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:43:29,917 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:43:29,917 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:43:29,922 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:43:29,922 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:43:29,923 INFO  L87              Difference]: Start difference. First operand 17893 states and 29845 transitions. Second operand  has 7 states, 7 states have (on average 1521.857142857143) internal successors, (10653), 7 states have internal predecessors, (10653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:30,740 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:43:30,741 INFO  L93              Difference]: Finished difference Result 49952 states and 83325 transitions.
[2023-12-25 19:43:30,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:43:30,743 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1521.857142857143) internal successors, (10653), 7 states have internal predecessors, (10653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11632
[2023-12-25 19:43:30,750 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:43:30,779 INFO  L225             Difference]: With dead ends: 49952
[2023-12-25 19:43:30,779 INFO  L226             Difference]: Without dead ends: 33889
[2023-12-25 19:43:30,792 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11641 GetRequests, 11629 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:43:30,793 INFO  L413           NwaCegarLoop]: 29739 mSDtfsCounter, 77927 mSDsluCounter, 116490 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77927 SdHoareTripleChecker+Valid, 146229 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:43:30,793 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77927 Valid, 146229 Invalid, 48 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:43:30,817 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33889 states.
[2023-12-25 19:43:30,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33889 to 17895.
[2023-12-25 19:43:30,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17895 states, 17894 states have (on average 1.6679892701464178) internal successors, (29847), 17894 states have internal predecessors, (29847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:31,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17895 states to 17895 states and 29847 transitions.
[2023-12-25 19:43:31,007 INFO  L78                 Accepts]: Start accepts. Automaton has 17895 states and 29847 transitions. Word has length 11632
[2023-12-25 19:43:31,012 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:43:31,012 INFO  L495      AbstractCegarLoop]: Abstraction has 17895 states and 29847 transitions.
[2023-12-25 19:43:31,013 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1521.857142857143) internal successors, (10653), 7 states have internal predecessors, (10653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:31,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 17895 states and 29847 transitions.
[2023-12-25 19:43:31,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11634
[2023-12-25 19:43:31,829 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:43:31,831 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]
[2023-12-25 19:43:31,989 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 19:43:32,032 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,SelfDestructingSolverStorable32
[2023-12-25 19:43:32,032 INFO  L420      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:43:32,033 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:43:32,034 INFO  L85        PathProgramCache]: Analyzing trace with hash -634243186, now seen corresponding path program 1 times
[2023-12-25 19:43:32,034 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:43:32,034 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863333272]
[2023-12-25 19:43:32,035 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:43:32,036 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:43:32,770 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:43:32,770 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29612819]
[2023-12-25 19:43:32,772 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:43:32,772 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:43:32,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:43:32,774 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 19:43:32,774 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 19:43:45,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:43:46,041 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52321 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:43:46,167 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:43:46,595 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked.
[2023-12-25 19:43:46,595 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:43:46,596 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:43:46,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863333272]
[2023-12-25 19:43:46,596 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:43:46,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29612819]
[2023-12-25 19:43:46,596 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [29612819] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:43:46,596 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:43:46,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:43:46,597 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229955329]
[2023-12-25 19:43:46,597 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:43:46,602 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:43:46,602 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:43:46,607 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:43:46,607 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:43:46,609 INFO  L87              Difference]: Start difference. First operand 17895 states and 29847 transitions. Second operand  has 7 states, 7 states have (on average 1522.2857142857142) internal successors, (10656), 7 states have internal predecessors, (10656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:47,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:43:47,330 INFO  L93              Difference]: Finished difference Result 49958 states and 83331 transitions.
[2023-12-25 19:43:47,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:43:47,333 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1522.2857142857142) internal successors, (10656), 7 states have internal predecessors, (10656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11633
[2023-12-25 19:43:47,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:43:47,373 INFO  L225             Difference]: With dead ends: 49958
[2023-12-25 19:43:47,374 INFO  L226             Difference]: Without dead ends: 33890
[2023-12-25 19:43:47,395 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11642 GetRequests, 11630 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:43:47,396 INFO  L413           NwaCegarLoop]: 29734 mSDtfsCounter, 77926 mSDsluCounter, 116475 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77926 SdHoareTripleChecker+Valid, 146209 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:43:47,396 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77926 Valid, 146209 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:43:47,425 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33890 states.
[2023-12-25 19:43:47,610 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33890 to 17897.
[2023-12-25 19:43:47,626 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17897 states, 17896 states have (on average 1.6679146177916853) internal successors, (29849), 17896 states have internal predecessors, (29849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:47,643 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17897 states to 17897 states and 29849 transitions.
[2023-12-25 19:43:47,644 INFO  L78                 Accepts]: Start accepts. Automaton has 17897 states and 29849 transitions. Word has length 11633
[2023-12-25 19:43:47,649 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:43:47,649 INFO  L495      AbstractCegarLoop]: Abstraction has 17897 states and 29849 transitions.
[2023-12-25 19:43:47,651 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1522.2857142857142) internal successors, (10656), 7 states have internal predecessors, (10656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:43:47,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 17897 states and 29849 transitions.
[2023-12-25 19:43:48,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11635
[2023-12-25 19:43:48,517 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:43:48,519 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]
[2023-12-25 19:43:48,678 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0
[2023-12-25 19:43:48,720 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:43:48,720 INFO  L420      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:43:48,721 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:43:48,722 INFO  L85        PathProgramCache]: Analyzing trace with hash -721723234, now seen corresponding path program 1 times
[2023-12-25 19:43:48,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:43:48,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911198084]
[2023-12-25 19:43:48,723 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:43:48,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:43:49,404 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:43:49,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777990945]
[2023-12-25 19:43:49,406 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:43:49,406 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:43:49,406 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:43:49,407 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 19:43:49,408 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 19:44:02,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:44:02,774 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52324 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:44:02,898 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:44:03,336 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked.
[2023-12-25 19:44:03,336 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:44:03,336 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:44:03,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911198084]
[2023-12-25 19:44:03,336 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:44:03,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777990945]
[2023-12-25 19:44:03,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [777990945] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:44:03,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:44:03,337 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:44:03,337 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149819942]
[2023-12-25 19:44:03,337 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:44:03,342 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:44:03,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:44:03,347 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:44:03,347 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:44:03,348 INFO  L87              Difference]: Start difference. First operand 17897 states and 29849 transitions. Second operand  has 7 states, 7 states have (on average 1522.7142857142858) internal successors, (10659), 7 states have internal predecessors, (10659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:04,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:44:04,120 INFO  L93              Difference]: Finished difference Result 49964 states and 83337 transitions.
[2023-12-25 19:44:04,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:44:04,122 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1522.7142857142858) internal successors, (10659), 7 states have internal predecessors, (10659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11634
[2023-12-25 19:44:04,129 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:44:04,152 INFO  L225             Difference]: With dead ends: 49964
[2023-12-25 19:44:04,152 INFO  L226             Difference]: Without dead ends: 33891
[2023-12-25 19:44:04,162 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11643 GetRequests, 11631 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:44:04,162 INFO  L413           NwaCegarLoop]: 29729 mSDtfsCounter, 77925 mSDsluCounter, 116460 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77925 SdHoareTripleChecker+Valid, 146189 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:44:04,162 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77925 Valid, 146189 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:44:04,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33891 states.
[2023-12-25 19:44:04,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33891 to 17899.
[2023-12-25 19:44:04,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17899 states, 17898 states have (on average 1.6678399821209073) internal successors, (29851), 17898 states have internal predecessors, (29851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:04,372 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17899 states to 17899 states and 29851 transitions.
[2023-12-25 19:44:04,372 INFO  L78                 Accepts]: Start accepts. Automaton has 17899 states and 29851 transitions. Word has length 11634
[2023-12-25 19:44:04,377 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:44:04,377 INFO  L495      AbstractCegarLoop]: Abstraction has 17899 states and 29851 transitions.
[2023-12-25 19:44:04,379 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1522.7142857142858) internal successors, (10659), 7 states have internal predecessors, (10659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:04,379 INFO  L276                IsEmpty]: Start isEmpty. Operand 17899 states and 29851 transitions.
[2023-12-25 19:44:05,174 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11636
[2023-12-25 19:44:05,175 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:44:05,177 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]
[2023-12-25 19:44:05,339 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0
[2023-12-25 19:44:05,377 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:44:05,378 INFO  L420      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:44:05,378 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:44:05,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -1406380760, now seen corresponding path program 1 times
[2023-12-25 19:44:05,379 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:44:05,379 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471241784]
[2023-12-25 19:44:05,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:05,380 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:44:06,148 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:44:06,149 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481316626]
[2023-12-25 19:44:06,151 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:06,151 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:44:06,151 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:44:06,152 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 19:44:06,152 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 19:44:19,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:44:19,503 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52327 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:44:19,625 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:44:20,067 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 974 trivial. 0 not checked.
[2023-12-25 19:44:20,068 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:44:20,068 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:44:20,068 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471241784]
[2023-12-25 19:44:20,068 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:44:20,068 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481316626]
[2023-12-25 19:44:20,068 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481316626] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:44:20,068 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:44:20,069 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:44:20,069 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386294485]
[2023-12-25 19:44:20,069 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:44:20,075 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:44:20,076 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:44:20,081 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:44:20,081 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:44:20,084 INFO  L87              Difference]: Start difference. First operand 17899 states and 29851 transitions. Second operand  has 7 states, 7 states have (on average 1523.142857142857) internal successors, (10662), 7 states have internal predecessors, (10662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:20,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:44:20,815 INFO  L93              Difference]: Finished difference Result 49970 states and 83343 transitions.
[2023-12-25 19:44:20,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:44:20,817 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1523.142857142857) internal successors, (10662), 7 states have internal predecessors, (10662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11635
[2023-12-25 19:44:20,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:44:20,976 INFO  L225             Difference]: With dead ends: 49970
[2023-12-25 19:44:20,976 INFO  L226             Difference]: Without dead ends: 33892
[2023-12-25 19:44:20,983 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11644 GetRequests, 11632 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:44:20,983 INFO  L413           NwaCegarLoop]: 29724 mSDtfsCounter, 77924 mSDsluCounter, 116445 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77924 SdHoareTripleChecker+Valid, 146169 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:44:20,984 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77924 Valid, 146169 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:44:21,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33892 states.
[2023-12-25 19:44:21,154 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33892 to 17901.
[2023-12-25 19:44:21,173 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17901 states, 17900 states have (on average 1.6677653631284917) internal successors, (29853), 17900 states have internal predecessors, (29853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:21,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17901 states to 17901 states and 29853 transitions.
[2023-12-25 19:44:21,193 INFO  L78                 Accepts]: Start accepts. Automaton has 17901 states and 29853 transitions. Word has length 11635
[2023-12-25 19:44:21,198 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:44:21,198 INFO  L495      AbstractCegarLoop]: Abstraction has 17901 states and 29853 transitions.
[2023-12-25 19:44:21,200 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1523.142857142857) internal successors, (10662), 7 states have internal predecessors, (10662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:21,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 17901 states and 29853 transitions.
[2023-12-25 19:44:22,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11637
[2023-12-25 19:44:22,009 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:44:22,011 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]
[2023-12-25 19:44:22,186 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0
[2023-12-25 19:44:22,211 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,SelfDestructingSolverStorable35
[2023-12-25 19:44:22,212 INFO  L420      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:44:22,212 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:44:22,213 INFO  L85        PathProgramCache]: Analyzing trace with hash 1876315330, now seen corresponding path program 1 times
[2023-12-25 19:44:22,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:44:22,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253254419]
[2023-12-25 19:44:22,214 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:22,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:44:22,954 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:44:22,955 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048423533]
[2023-12-25 19:44:22,957 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:22,957 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:44:22,957 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:44:22,958 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 19:44:22,959 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 19:44:36,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:44:36,669 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52331 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:44:36,795 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:44:37,134 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked.
[2023-12-25 19:44:37,134 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:44:37,134 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:44:37,134 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253254419]
[2023-12-25 19:44:37,134 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:44:37,134 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048423533]
[2023-12-25 19:44:37,134 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048423533] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:44:37,134 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:44:37,135 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:44:37,136 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478661787]
[2023-12-25 19:44:37,136 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:44:37,254 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:44:37,254 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:44:37,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:44:37,262 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:44:37,264 INFO  L87              Difference]: Start difference. First operand 17901 states and 29853 transitions. Second operand  has 7 states, 7 states have (on average 1523.5714285714287) internal successors, (10665), 7 states have internal predecessors, (10665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:37,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:44:37,988 INFO  L93              Difference]: Finished difference Result 49976 states and 83349 transitions.
[2023-12-25 19:44:37,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:44:37,991 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1523.5714285714287) internal successors, (10665), 7 states have internal predecessors, (10665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11636
[2023-12-25 19:44:37,998 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:44:38,031 INFO  L225             Difference]: With dead ends: 49976
[2023-12-25 19:44:38,031 INFO  L226             Difference]: Without dead ends: 33893
[2023-12-25 19:44:38,051 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11645 GetRequests, 11633 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:44:38,052 INFO  L413           NwaCegarLoop]: 29719 mSDtfsCounter, 77923 mSDsluCounter, 116430 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77923 SdHoareTripleChecker+Valid, 146149 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:44:38,052 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77923 Valid, 146149 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:44:38,080 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33893 states.
[2023-12-25 19:44:38,259 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33893 to 17903.
[2023-12-25 19:44:38,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17903 states, 17902 states have (on average 1.6676907608088483) internal successors, (29855), 17902 states have internal predecessors, (29855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:38,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17903 states to 17903 states and 29855 transitions.
[2023-12-25 19:44:38,296 INFO  L78                 Accepts]: Start accepts. Automaton has 17903 states and 29855 transitions. Word has length 11636
[2023-12-25 19:44:38,301 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:44:38,301 INFO  L495      AbstractCegarLoop]: Abstraction has 17903 states and 29855 transitions.
[2023-12-25 19:44:38,303 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1523.5714285714287) internal successors, (10665), 7 states have internal predecessors, (10665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:38,303 INFO  L276                IsEmpty]: Start isEmpty. Operand 17903 states and 29855 transitions.
[2023-12-25 19:44:39,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11638
[2023-12-25 19:44:39,193 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:44:39,195 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]
[2023-12-25 19:44:39,353 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 19:44:39,396 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,SelfDestructingSolverStorable36
[2023-12-25 19:44:39,396 INFO  L420      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:44:39,396 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:44:39,397 INFO  L85        PathProgramCache]: Analyzing trace with hash 526534016, now seen corresponding path program 1 times
[2023-12-25 19:44:39,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:44:39,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065493647]
[2023-12-25 19:44:39,398 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:39,398 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:44:40,084 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:44:40,084 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342795321]
[2023-12-25 19:44:40,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:40,086 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:44:40,086 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:44:40,087 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 19:44:40,088 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 19:44:52,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:44:53,281 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52334 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:44:53,405 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:44:53,852 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked.
[2023-12-25 19:44:53,852 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:44:53,852 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:44:53,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065493647]
[2023-12-25 19:44:53,852 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:44:53,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342795321]
[2023-12-25 19:44:53,852 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [342795321] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:44:53,853 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:44:53,853 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:44:53,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122356899]
[2023-12-25 19:44:53,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:44:53,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:44:53,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:44:53,863 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:44:53,863 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:44:53,864 INFO  L87              Difference]: Start difference. First operand 17903 states and 29855 transitions. Second operand  has 7 states, 7 states have (on average 1524.0) internal successors, (10668), 7 states have internal predecessors, (10668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:54,587 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:44:54,588 INFO  L93              Difference]: Finished difference Result 49982 states and 83355 transitions.
[2023-12-25 19:44:54,588 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:44:54,592 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1524.0) internal successors, (10668), 7 states have internal predecessors, (10668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11637
[2023-12-25 19:44:54,601 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:44:54,635 INFO  L225             Difference]: With dead ends: 49982
[2023-12-25 19:44:54,635 INFO  L226             Difference]: Without dead ends: 33894
[2023-12-25 19:44:54,656 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11646 GetRequests, 11634 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:44:54,656 INFO  L413           NwaCegarLoop]: 29714 mSDtfsCounter, 77922 mSDsluCounter, 116415 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77922 SdHoareTripleChecker+Valid, 146129 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:44:54,656 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77922 Valid, 146129 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:44:54,686 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33894 states.
[2023-12-25 19:44:54,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33894 to 17905.
[2023-12-25 19:44:54,874 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17905 states, 17904 states have (on average 1.6676161751563896) internal successors, (29857), 17904 states have internal predecessors, (29857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:54,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17905 states to 17905 states and 29857 transitions.
[2023-12-25 19:44:54,893 INFO  L78                 Accepts]: Start accepts. Automaton has 17905 states and 29857 transitions. Word has length 11637
[2023-12-25 19:44:54,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:44:54,898 INFO  L495      AbstractCegarLoop]: Abstraction has 17905 states and 29857 transitions.
[2023-12-25 19:44:54,900 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1524.0) internal successors, (10668), 7 states have internal predecessors, (10668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:44:54,900 INFO  L276                IsEmpty]: Start isEmpty. Operand 17905 states and 29857 transitions.
[2023-12-25 19:44:55,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11639
[2023-12-25 19:44:55,834 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:44:55,837 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]
[2023-12-25 19:44:56,019 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 19:44:56,037 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,SelfDestructingSolverStorable37
[2023-12-25 19:44:56,037 INFO  L420      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:44:56,038 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:44:56,039 INFO  L85        PathProgramCache]: Analyzing trace with hash -1927752152, now seen corresponding path program 1 times
[2023-12-25 19:44:56,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:44:56,039 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417968354]
[2023-12-25 19:44:56,040 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:56,040 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:44:56,753 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:44:56,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36017835]
[2023-12-25 19:44:56,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:44:56,755 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:44:56,755 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:44:56,756 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 19:44:56,757 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 19:45:09,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:45:10,151 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52337 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:45:10,277 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:45:10,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked.
[2023-12-25 19:45:10,639 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:45:10,639 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:45:10,639 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417968354]
[2023-12-25 19:45:10,639 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:45:10,639 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36017835]
[2023-12-25 19:45:10,639 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [36017835] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:45:10,640 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:45:10,641 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:45:10,641 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655819466]
[2023-12-25 19:45:10,641 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:45:10,647 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:45:10,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:45:10,653 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:45:10,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:45:10,655 INFO  L87              Difference]: Start difference. First operand 17905 states and 29857 transitions. Second operand  has 7 states, 7 states have (on average 1524.4285714285713) internal successors, (10671), 7 states have internal predecessors, (10671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:11,470 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:45:11,470 INFO  L93              Difference]: Finished difference Result 49988 states and 83361 transitions.
[2023-12-25 19:45:11,470 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:45:11,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1524.4285714285713) internal successors, (10671), 7 states have internal predecessors, (10671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11638
[2023-12-25 19:45:11,479 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:45:11,514 INFO  L225             Difference]: With dead ends: 49988
[2023-12-25 19:45:11,514 INFO  L226             Difference]: Without dead ends: 33895
[2023-12-25 19:45:11,534 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11647 GetRequests, 11635 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:45:11,534 INFO  L413           NwaCegarLoop]: 29709 mSDtfsCounter, 77921 mSDsluCounter, 116400 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77921 SdHoareTripleChecker+Valid, 146109 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:45:11,534 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77921 Valid, 146109 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:45:11,565 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33895 states.
[2023-12-25 19:45:11,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33895 to 17907.
[2023-12-25 19:45:11,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17907 states, 17906 states have (on average 1.667541606165531) internal successors, (29859), 17906 states have internal predecessors, (29859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:11,784 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17907 states to 17907 states and 29859 transitions.
[2023-12-25 19:45:11,784 INFO  L78                 Accepts]: Start accepts. Automaton has 17907 states and 29859 transitions. Word has length 11638
[2023-12-25 19:45:11,789 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:45:11,789 INFO  L495      AbstractCegarLoop]: Abstraction has 17907 states and 29859 transitions.
[2023-12-25 19:45:11,790 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1524.4285714285713) internal successors, (10671), 7 states have internal predecessors, (10671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:11,791 INFO  L276                IsEmpty]: Start isEmpty. Operand 17907 states and 29859 transitions.
[2023-12-25 19:45:12,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11640
[2023-12-25 19:45:12,704 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:45:12,707 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]
[2023-12-25 19:45:12,876 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 19:45:12,929 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38
[2023-12-25 19:45:12,930 INFO  L420      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:45:12,930 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:45:12,931 INFO  L85        PathProgramCache]: Analyzing trace with hash -1556431078, now seen corresponding path program 1 times
[2023-12-25 19:45:12,931 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:45:12,931 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929094193]
[2023-12-25 19:45:12,932 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:45:12,932 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:45:13,970 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:45:13,970 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784484834]
[2023-12-25 19:45:13,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:45:13,973 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:45:13,973 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:45:13,974 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 19:45:13,985 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 19:45:27,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:45:27,515 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52340 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:45:27,707 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:45:28,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked.
[2023-12-25 19:45:28,022 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:45:28,022 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:45:28,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929094193]
[2023-12-25 19:45:28,022 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:45:28,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784484834]
[2023-12-25 19:45:28,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [784484834] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:45:28,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:45:28,023 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:45:28,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058071793]
[2023-12-25 19:45:28,023 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:45:28,064 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:45:28,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:45:28,068 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:45:28,068 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:45:28,070 INFO  L87              Difference]: Start difference. First operand 17907 states and 29859 transitions. Second operand  has 7 states, 7 states have (on average 1524.857142857143) internal successors, (10674), 7 states have internal predecessors, (10674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:28,782 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:45:28,783 INFO  L93              Difference]: Finished difference Result 49994 states and 83367 transitions.
[2023-12-25 19:45:28,783 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:45:28,785 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1524.857142857143) internal successors, (10674), 7 states have internal predecessors, (10674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11639
[2023-12-25 19:45:28,792 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:45:28,899 INFO  L225             Difference]: With dead ends: 49994
[2023-12-25 19:45:28,899 INFO  L226             Difference]: Without dead ends: 33896
[2023-12-25 19:45:28,906 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11648 GetRequests, 11636 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:45:28,906 INFO  L413           NwaCegarLoop]: 29704 mSDtfsCounter, 77920 mSDsluCounter, 116385 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77920 SdHoareTripleChecker+Valid, 146089 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:45:28,906 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77920 Valid, 146089 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:45:28,924 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33896 states.
[2023-12-25 19:45:29,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33896 to 17909.
[2023-12-25 19:45:29,076 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17909 states, 17908 states have (on average 1.6674670538306902) internal successors, (29861), 17908 states have internal predecessors, (29861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:29,094 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17909 states to 17909 states and 29861 transitions.
[2023-12-25 19:45:29,094 INFO  L78                 Accepts]: Start accepts. Automaton has 17909 states and 29861 transitions. Word has length 11639
[2023-12-25 19:45:29,099 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:45:29,099 INFO  L495      AbstractCegarLoop]: Abstraction has 17909 states and 29861 transitions.
[2023-12-25 19:45:29,100 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1524.857142857143) internal successors, (10674), 7 states have internal predecessors, (10674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:29,100 INFO  L276                IsEmpty]: Start isEmpty. Operand 17909 states and 29861 transitions.
[2023-12-25 19:45:29,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11641
[2023-12-25 19:45:29,869 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:45:29,871 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 19:45:30,019 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0
[2023-12-25 19:45:30,071 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39
[2023-12-25 19:45:30,072 INFO  L420      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:45:30,072 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:45:30,073 INFO  L85        PathProgramCache]: Analyzing trace with hash 1225595212, now seen corresponding path program 1 times
[2023-12-25 19:45:30,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:45:30,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381229562]
[2023-12-25 19:45:30,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:45:30,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:45:30,778 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:45:30,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132202891]
[2023-12-25 19:45:30,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:45:30,781 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:45:30,781 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:45:30,782 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 19:45:30,782 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 19:45:43,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:45:44,152 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52344 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:45:44,374 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:45:44,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked.
[2023-12-25 19:45:44,767 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:45:44,767 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:45:44,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381229562]
[2023-12-25 19:45:44,768 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:45:44,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132202891]
[2023-12-25 19:45:44,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132202891] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:45:44,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:45:44,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:45:44,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844564535]
[2023-12-25 19:45:44,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:45:44,774 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:45:44,774 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:45:44,779 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:45:44,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:45:44,781 INFO  L87              Difference]: Start difference. First operand 17909 states and 29861 transitions. Second operand  has 7 states, 7 states have (on average 1525.2857142857142) internal successors, (10677), 7 states have internal predecessors, (10677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:45,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:45:45,550 INFO  L93              Difference]: Finished difference Result 50000 states and 83373 transitions.
[2023-12-25 19:45:45,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:45:45,553 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1525.2857142857142) internal successors, (10677), 7 states have internal predecessors, (10677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11640
[2023-12-25 19:45:45,560 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:45:45,589 INFO  L225             Difference]: With dead ends: 50000
[2023-12-25 19:45:45,589 INFO  L226             Difference]: Without dead ends: 33897
[2023-12-25 19:45:45,603 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11649 GetRequests, 11637 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:45:45,603 INFO  L413           NwaCegarLoop]: 29699 mSDtfsCounter, 77919 mSDsluCounter, 116370 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77919 SdHoareTripleChecker+Valid, 146069 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:45:45,603 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77919 Valid, 146069 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:45:45,631 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33897 states.
[2023-12-25 19:45:45,806 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33897 to 17911.
[2023-12-25 19:45:45,825 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17911 states, 17910 states have (on average 1.667392518146287) internal successors, (29863), 17910 states have internal predecessors, (29863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:45,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17911 states to 17911 states and 29863 transitions.
[2023-12-25 19:45:45,845 INFO  L78                 Accepts]: Start accepts. Automaton has 17911 states and 29863 transitions. Word has length 11640
[2023-12-25 19:45:45,851 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:45:45,851 INFO  L495      AbstractCegarLoop]: Abstraction has 17911 states and 29863 transitions.
[2023-12-25 19:45:45,852 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1525.2857142857142) internal successors, (10677), 7 states have internal predecessors, (10677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:45:45,852 INFO  L276                IsEmpty]: Start isEmpty. Operand 17911 states and 29863 transitions.
[2023-12-25 19:45:46,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11642
[2023-12-25 19:45:46,653 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:45:46,655 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 19:45:46,819 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 19:45:46,856 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,SelfDestructingSolverStorable40
[2023-12-25 19:45:46,857 INFO  L420      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:45:46,857 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:45:46,858 INFO  L85        PathProgramCache]: Analyzing trace with hash -198041998, now seen corresponding path program 1 times
[2023-12-25 19:45:46,858 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:45:46,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435925486]
[2023-12-25 19:45:46,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:45:46,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:45:47,656 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:45:47,656 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691372107]
[2023-12-25 19:45:47,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:45:47,659 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:45:47,659 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:45:47,660 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 19:45:47,660 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 19:46:00,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:46:00,918 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52347 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:46:01,040 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:46:01,496 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 962 trivial. 0 not checked.
[2023-12-25 19:46:01,496 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:46:01,496 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:46:01,496 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435925486]
[2023-12-25 19:46:01,497 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:46:01,497 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691372107]
[2023-12-25 19:46:01,497 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [691372107] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:46:01,497 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:46:01,498 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:46:01,498 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864575486]
[2023-12-25 19:46:01,498 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:46:01,504 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:46:01,504 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:46:01,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:46:01,509 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:46:01,510 INFO  L87              Difference]: Start difference. First operand 17911 states and 29863 transitions. Second operand  has 7 states, 7 states have (on average 1525.7142857142858) internal successors, (10680), 7 states have internal predecessors, (10680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:02,322 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:46:02,323 INFO  L93              Difference]: Finished difference Result 50006 states and 83379 transitions.
[2023-12-25 19:46:02,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:46:02,325 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1525.7142857142858) internal successors, (10680), 7 states have internal predecessors, (10680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11641
[2023-12-25 19:46:02,332 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:46:02,361 INFO  L225             Difference]: With dead ends: 50006
[2023-12-25 19:46:02,361 INFO  L226             Difference]: Without dead ends: 33898
[2023-12-25 19:46:02,374 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11650 GetRequests, 11638 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:46:02,374 INFO  L413           NwaCegarLoop]: 29694 mSDtfsCounter, 77918 mSDsluCounter, 116355 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77918 SdHoareTripleChecker+Valid, 146049 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:46:02,374 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77918 Valid, 146049 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:46:02,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33898 states.
[2023-12-25 19:46:02,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33898 to 17913.
[2023-12-25 19:46:02,588 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17913 states, 17912 states have (on average 1.6673179991067442) internal successors, (29865), 17912 states have internal predecessors, (29865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:02,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17913 states to 17913 states and 29865 transitions.
[2023-12-25 19:46:02,607 INFO  L78                 Accepts]: Start accepts. Automaton has 17913 states and 29865 transitions. Word has length 11641
[2023-12-25 19:46:02,613 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:46:02,613 INFO  L495      AbstractCegarLoop]: Abstraction has 17913 states and 29865 transitions.
[2023-12-25 19:46:02,614 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1525.7142857142858) internal successors, (10680), 7 states have internal predecessors, (10680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:02,615 INFO  L276                IsEmpty]: Start isEmpty. Operand 17913 states and 29865 transitions.
[2023-12-25 19:46:03,429 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11643
[2023-12-25 19:46:03,429 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:46:03,431 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]
[2023-12-25 19:46:03,608 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0
[2023-12-25 19:46:03,632 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41
[2023-12-25 19:46:03,632 INFO  L420      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:46:03,632 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:46:03,633 INFO  L85        PathProgramCache]: Analyzing trace with hash -876222798, now seen corresponding path program 1 times
[2023-12-25 19:46:03,633 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:46:03,633 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583321666]
[2023-12-25 19:46:03,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:03,634 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:46:04,453 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:46:04,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663886918]
[2023-12-25 19:46:04,456 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:04,456 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:46:04,456 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:46:04,457 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 19:46:04,461 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 19:46:17,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:46:17,855 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52350 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:46:17,973 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:46:18,385 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked.
[2023-12-25 19:46:18,386 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:46:18,386 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:46:18,386 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583321666]
[2023-12-25 19:46:18,386 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:46:18,386 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663886918]
[2023-12-25 19:46:18,386 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [663886918] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:46:18,386 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:46:18,387 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:46:18,387 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461438515]
[2023-12-25 19:46:18,387 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:46:18,392 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:46:18,392 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:46:18,397 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:46:18,397 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:46:18,400 INFO  L87              Difference]: Start difference. First operand 17913 states and 29865 transitions. Second operand  has 7 states, 7 states have (on average 1526.142857142857) internal successors, (10683), 7 states have internal predecessors, (10683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:19,244 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:46:19,244 INFO  L93              Difference]: Finished difference Result 50012 states and 83385 transitions.
[2023-12-25 19:46:19,244 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:46:19,246 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1526.142857142857) internal successors, (10683), 7 states have internal predecessors, (10683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11642
[2023-12-25 19:46:19,253 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:46:19,277 INFO  L225             Difference]: With dead ends: 50012
[2023-12-25 19:46:19,277 INFO  L226             Difference]: Without dead ends: 33899
[2023-12-25 19:46:19,289 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11651 GetRequests, 11639 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:46:19,289 INFO  L413           NwaCegarLoop]: 29689 mSDtfsCounter, 77917 mSDsluCounter, 116340 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77917 SdHoareTripleChecker+Valid, 146029 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:46:19,289 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77917 Valid, 146029 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:46:19,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33899 states.
[2023-12-25 19:46:19,451 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33899 to 17915.
[2023-12-25 19:46:19,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17915 states, 17914 states have (on average 1.6672434967064866) internal successors, (29867), 17914 states have internal predecessors, (29867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:19,484 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17915 states to 17915 states and 29867 transitions.
[2023-12-25 19:46:19,484 INFO  L78                 Accepts]: Start accepts. Automaton has 17915 states and 29867 transitions. Word has length 11642
[2023-12-25 19:46:19,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:46:19,489 INFO  L495      AbstractCegarLoop]: Abstraction has 17915 states and 29867 transitions.
[2023-12-25 19:46:19,490 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1526.142857142857) internal successors, (10683), 7 states have internal predecessors, (10683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:19,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 17915 states and 29867 transitions.
[2023-12-25 19:46:20,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11644
[2023-12-25 19:46:20,302 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:46:20,304 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 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 19:46:20,458 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 19:46:20,504 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,SelfDestructingSolverStorable42
[2023-12-25 19:46:20,505 INFO  L420      AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:46:20,505 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:46:20,506 INFO  L85        PathProgramCache]: Analyzing trace with hash 67990540, now seen corresponding path program 1 times
[2023-12-25 19:46:20,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:46:20,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215836143]
[2023-12-25 19:46:20,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:20,507 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:46:21,227 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:46:21,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613228331]
[2023-12-25 19:46:21,229 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:21,229 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:46:21,229 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:46:21,230 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 19:46:21,232 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 19:46:34,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:46:34,510 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52353 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:46:34,634 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:46:35,075 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked.
[2023-12-25 19:46:35,075 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:46:35,075 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:46:35,075 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215836143]
[2023-12-25 19:46:35,075 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:46:35,075 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613228331]
[2023-12-25 19:46:35,075 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [613228331] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:46:35,075 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:46:35,076 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:46:35,076 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655106247]
[2023-12-25 19:46:35,076 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:46:35,082 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:46:35,082 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:46:35,086 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:46:35,086 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:46:35,088 INFO  L87              Difference]: Start difference. First operand 17915 states and 29867 transitions. Second operand  has 7 states, 7 states have (on average 1526.5714285714287) internal successors, (10686), 7 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:35,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:46:35,881 INFO  L93              Difference]: Finished difference Result 50018 states and 83391 transitions.
[2023-12-25 19:46:35,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:46:35,883 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1526.5714285714287) internal successors, (10686), 7 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11643
[2023-12-25 19:46:35,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:46:35,915 INFO  L225             Difference]: With dead ends: 50018
[2023-12-25 19:46:35,915 INFO  L226             Difference]: Without dead ends: 33900
[2023-12-25 19:46:35,927 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11652 GetRequests, 11640 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:46:35,927 INFO  L413           NwaCegarLoop]: 29684 mSDtfsCounter, 77916 mSDsluCounter, 116325 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77916 SdHoareTripleChecker+Valid, 146009 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:46:35,928 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77916 Valid, 146009 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:46:35,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33900 states.
[2023-12-25 19:46:36,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33900 to 17917.
[2023-12-25 19:46:36,137 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17917 states, 17916 states have (on average 1.667169010939942) internal successors, (29869), 17916 states have internal predecessors, (29869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:36,156 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17917 states to 17917 states and 29869 transitions.
[2023-12-25 19:46:36,156 INFO  L78                 Accepts]: Start accepts. Automaton has 17917 states and 29869 transitions. Word has length 11643
[2023-12-25 19:46:36,162 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:46:36,162 INFO  L495      AbstractCegarLoop]: Abstraction has 17917 states and 29869 transitions.
[2023-12-25 19:46:36,164 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1526.5714285714287) internal successors, (10686), 7 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:36,164 INFO  L276                IsEmpty]: Start isEmpty. Operand 17917 states and 29869 transitions.
[2023-12-25 19:46:36,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11645
[2023-12-25 19:46:36,974 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:46:36,977 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 19:46:37,147 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0
[2023-12-25 19:46:37,177 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:46:37,178 INFO  L420      AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:46:37,178 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:46:37,179 INFO  L85        PathProgramCache]: Analyzing trace with hash -880115498, now seen corresponding path program 1 times
[2023-12-25 19:46:37,179 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:46:37,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071520705]
[2023-12-25 19:46:37,181 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:37,181 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:46:37,881 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:46:37,881 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525187268]
[2023-12-25 19:46:37,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:37,883 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:46:37,883 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:46:37,884 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 19:46:37,885 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 19:46:50,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:46:51,375 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52357 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:46:51,640 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:46:51,986 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked.
[2023-12-25 19:46:51,986 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:46:51,986 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:46:51,986 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071520705]
[2023-12-25 19:46:51,986 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:46:51,986 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525187268]
[2023-12-25 19:46:51,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525187268] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:46:51,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:46:51,988 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:46:51,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77258889]
[2023-12-25 19:46:51,988 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:46:51,994 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:46:51,994 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:46:52,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:46:52,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:46:52,004 INFO  L87              Difference]: Start difference. First operand 17917 states and 29869 transitions. Second operand  has 7 states, 7 states have (on average 1527.0) internal successors, (10689), 7 states have internal predecessors, (10689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:52,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:46:52,874 INFO  L93              Difference]: Finished difference Result 50024 states and 83397 transitions.
[2023-12-25 19:46:52,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:46:52,876 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1527.0) internal successors, (10689), 7 states have internal predecessors, (10689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11644
[2023-12-25 19:46:52,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:46:52,911 INFO  L225             Difference]: With dead ends: 50024
[2023-12-25 19:46:52,911 INFO  L226             Difference]: Without dead ends: 33901
[2023-12-25 19:46:52,923 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11653 GetRequests, 11641 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:46:52,924 INFO  L413           NwaCegarLoop]: 29679 mSDtfsCounter, 77915 mSDsluCounter, 116310 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77915 SdHoareTripleChecker+Valid, 145989 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:46:52,924 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77915 Valid, 145989 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:46:52,949 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33901 states.
[2023-12-25 19:46:53,136 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33901 to 17919.
[2023-12-25 19:46:53,154 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17919 states, 17918 states have (on average 1.6670945418015404) internal successors, (29871), 17918 states have internal predecessors, (29871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:53,174 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17919 states to 17919 states and 29871 transitions.
[2023-12-25 19:46:53,175 INFO  L78                 Accepts]: Start accepts. Automaton has 17919 states and 29871 transitions. Word has length 11644
[2023-12-25 19:46:53,180 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:46:53,181 INFO  L495      AbstractCegarLoop]: Abstraction has 17919 states and 29871 transitions.
[2023-12-25 19:46:53,182 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1527.0) internal successors, (10689), 7 states have internal predecessors, (10689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:46:53,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 17919 states and 29871 transitions.
[2023-12-25 19:46:54,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11646
[2023-12-25 19:46:54,044 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:46:54,047 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 19:46:54,226 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 19:46:54,247 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:46:54,248 INFO  L420      AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:46:54,248 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:46:54,249 INFO  L85        PathProgramCache]: Analyzing trace with hash 273039972, now seen corresponding path program 1 times
[2023-12-25 19:46:54,249 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:46:54,250 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787068243]
[2023-12-25 19:46:54,251 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:54,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:46:55,072 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:46:55,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659689282]
[2023-12-25 19:46:55,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:46:55,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:46:55,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:46:55,076 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 19:46:55,104 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 19:47:07,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:47:08,270 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52360 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:47:08,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:47:08,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked.
[2023-12-25 19:47:08,798 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:47:08,798 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:47:08,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787068243]
[2023-12-25 19:47:08,798 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:47:08,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659689282]
[2023-12-25 19:47:08,799 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [659689282] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:47:08,799 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:47:08,799 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:47:08,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058735301]
[2023-12-25 19:47:08,800 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:47:08,805 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:47:08,805 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:47:08,809 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:47:08,809 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:47:08,811 INFO  L87              Difference]: Start difference. First operand 17919 states and 29871 transitions. Second operand  has 7 states, 7 states have (on average 1527.4285714285713) internal successors, (10692), 7 states have internal predecessors, (10692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:47:09,572 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:47:09,572 INFO  L93              Difference]: Finished difference Result 50030 states and 83403 transitions.
[2023-12-25 19:47:09,572 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:47:09,575 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1527.4285714285713) internal successors, (10692), 7 states have internal predecessors, (10692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11645
[2023-12-25 19:47:09,581 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:47:09,610 INFO  L225             Difference]: With dead ends: 50030
[2023-12-25 19:47:09,611 INFO  L226             Difference]: Without dead ends: 33902
[2023-12-25 19:47:09,626 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11654 GetRequests, 11642 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:47:09,626 INFO  L413           NwaCegarLoop]: 29674 mSDtfsCounter, 77914 mSDsluCounter, 116295 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77914 SdHoareTripleChecker+Valid, 145969 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:47:09,626 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77914 Valid, 145969 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:47:09,650 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33902 states.
[2023-12-25 19:47:09,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33902 to 17921.
[2023-12-25 19:47:09,916 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17921 states, 17920 states have (on average 1.6670200892857143) internal successors, (29873), 17920 states have internal predecessors, (29873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:47:09,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17921 states to 17921 states and 29873 transitions.
[2023-12-25 19:47:09,934 INFO  L78                 Accepts]: Start accepts. Automaton has 17921 states and 29873 transitions. Word has length 11645
[2023-12-25 19:47:09,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:47:09,940 INFO  L495      AbstractCegarLoop]: Abstraction has 17921 states and 29873 transitions.
[2023-12-25 19:47:09,941 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1527.4285714285713) internal successors, (10692), 7 states have internal predecessors, (10692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:47:09,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 17921 states and 29873 transitions.
[2023-12-25 19:47:10,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11647
[2023-12-25 19:47:10,697 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:47:10,699 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 19:47:10,848 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0
[2023-12-25 19:47:10,899 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,SelfDestructingSolverStorable45
[2023-12-25 19:47:10,900 INFO  L420      AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:47:10,900 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:47:10,901 INFO  L85        PathProgramCache]: Analyzing trace with hash 1058345532, now seen corresponding path program 1 times
[2023-12-25 19:47:10,901 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:47:10,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316797206]
[2023-12-25 19:47:10,902 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:47:10,902 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:47:11,615 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:47:11,616 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254009279]
[2023-12-25 19:47:11,618 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:47:11,618 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:47:11,618 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:47:11,619 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 19:47:11,619 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 19:47:24,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:47:24,847 INFO  L262         TraceCheckSpWp]: Trace formula consists of 52363 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:47:24,981 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:47:25,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 1008 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked.
[2023-12-25 19:47:25,425 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:47:25,425 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:47:25,425 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316797206]
[2023-12-25 19:47:25,425 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:47:25,425 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254009279]
[2023-12-25 19:47:25,425 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254009279] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:47:25,425 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:47:25,426 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 19:47:25,426 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878335987]
[2023-12-25 19:47:25,426 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:47:25,431 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 19:47:25,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:47:25,436 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 19:47:25,436 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 19:47:25,438 INFO  L87              Difference]: Start difference. First operand 17921 states and 29873 transitions. Second operand  has 7 states, 7 states have (on average 1527.857142857143) internal successors, (10695), 7 states have internal predecessors, (10695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:47:26,247 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:47:26,247 INFO  L93              Difference]: Finished difference Result 50036 states and 83409 transitions.
[2023-12-25 19:47:26,248 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 19:47:26,250 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1527.857142857143) internal successors, (10695), 7 states have internal predecessors, (10695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11646
[2023-12-25 19:47:26,256 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:47:26,281 INFO  L225             Difference]: With dead ends: 50036
[2023-12-25 19:47:26,282 INFO  L226             Difference]: Without dead ends: 33903
[2023-12-25 19:47:26,295 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 11655 GetRequests, 11643 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 19:47:26,295 INFO  L413           NwaCegarLoop]: 29669 mSDtfsCounter, 77913 mSDsluCounter, 116280 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77913 SdHoareTripleChecker+Valid, 145949 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:47:26,295 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77913 Valid, 145949 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:47:26,318 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33903 states.
[2023-12-25 19:47:26,475 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33903 to 17923.
[2023-12-25 19:47:26,491 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17923 states, 17922 states have (on average 1.6669456533868987) internal successors, (29875), 17922 states have internal predecessors, (29875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:47:26,510 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17923 states to 17923 states and 29875 transitions.
[2023-12-25 19:47:26,510 INFO  L78                 Accepts]: Start accepts. Automaton has 17923 states and 29875 transitions. Word has length 11646
[2023-12-25 19:47:26,515 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:47:26,515 INFO  L495      AbstractCegarLoop]: Abstraction has 17923 states and 29875 transitions.
[2023-12-25 19:47:26,516 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1527.857142857143) internal successors, (10695), 7 states have internal predecessors, (10695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:47:26,516 INFO  L276                IsEmpty]: Start isEmpty. Operand 17923 states and 29875 transitions.
[2023-12-25 19:47:27,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11648
[2023-12-25 19:47:27,332 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:47:27,335 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 19:47:27,496 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 19:47:27,535 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,SelfDestructingSolverStorable46
[2023-12-25 19:47:27,535 INFO  L420      AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:47:27,536 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:47:27,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -397872130, now seen corresponding path program 1 times
[2023-12-25 19:47:27,537 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:47:27,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29085400]
[2023-12-25 19:47:27,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:47:27,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:47:28,389 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:47:28,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713168272]
[2023-12-25 19:47:28,391 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:47:28,391 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:47:28,391 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:47:28,392 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 19:47:28,393 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process
Received shutdown request...
[2023-12-25 19:47:28,844 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 19:47:28,848 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 19:47:29,849 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 19:47:29,887 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 19:47:29,949 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
[2023-12-25 19:47:30,050 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,SelfDestructingSolverStorable47
[2023-12-25 19:47:30,050 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 11648 with TraceHistMax 2,while executing Executor.
[2023-12-25 19:47:30,053 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]
[2023-12-25 19:47:30,055 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 19:47:30,056 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 07:47:30 BoogieIcfgContainer
[2023-12-25 19:47:30,056 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 19:47:30,056 INFO  L158              Benchmark]: Toolchain (without parser) took 765080.52ms. Allocated memory was 205.5MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 144.0MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 5.1GB. Max. memory is 8.0GB.
[2023-12-25 19:47:30,056 INFO  L158              Benchmark]: CDTParser took 0.08ms. Allocated memory is still 205.5MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 19:47:30,056 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 2317.74ms. Allocated memory was 205.5MB in the beginning and 914.4MB in the end (delta: 708.8MB). Free memory was 144.0MB in the beginning and 607.4MB in the end (delta: -463.5MB). Peak memory consumption was 334.5MB. Max. memory is 8.0GB.
[2023-12-25 19:47:30,056 INFO  L158              Benchmark]: Boogie Procedure Inliner took 5345.26ms. Allocated memory was 914.4MB in the beginning and 4.7GB in the end (delta: 3.8GB). Free memory was 607.4MB in the beginning and 3.7GB in the end (delta: -3.0GB). Peak memory consumption was 940.6MB. Max. memory is 8.0GB.
[2023-12-25 19:47:30,056 INFO  L158              Benchmark]: Boogie Preprocessor took 4656.30ms. Allocated memory was 4.7GB in the beginning and 6.0GB in the end (delta: 1.3GB). Free memory was 3.7GB in the beginning and 4.6GB in the end (delta: -899.7MB). Peak memory consumption was 434.6MB. Max. memory is 8.0GB.
[2023-12-25 19:47:30,057 INFO  L158              Benchmark]: RCFGBuilder took 25661.42ms. Allocated memory is still 6.0GB. Free memory was 4.6GB in the beginning and 4.2GB in the end (delta: 357.7MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB.
[2023-12-25 19:47:30,057 INFO  L158              Benchmark]: TraceAbstraction took 727093.39ms. Allocated memory was 6.0GB in the beginning and 6.9GB in the end (delta: 898.6MB). Free memory was 4.2GB in the beginning and 2.7GB in the end (delta: 1.5GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
[2023-12-25 19:47:30,057 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.08ms. Allocated memory is still 205.5MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 2317.74ms. Allocated memory was 205.5MB in the beginning and 914.4MB in the end (delta: 708.8MB). Free memory was 144.0MB in the beginning and 607.4MB in the end (delta: -463.5MB). Peak memory consumption was 334.5MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 5345.26ms. Allocated memory was 914.4MB in the beginning and 4.7GB in the end (delta: 3.8GB). Free memory was 607.4MB in the beginning and 3.7GB in the end (delta: -3.0GB). Peak memory consumption was 940.6MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 4656.30ms. Allocated memory was 4.7GB in the beginning and 6.0GB in the end (delta: 1.3GB). Free memory was 3.7GB in the beginning and 4.6GB in the end (delta: -899.7MB). Peak memory consumption was 434.6MB. Max. memory is 8.0GB.
 * RCFGBuilder took 25661.42ms. Allocated memory is still 6.0GB. Free memory was 4.6GB in the beginning and 4.2GB in the end (delta: 357.7MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB.
 * TraceAbstraction took 727093.39ms. Allocated memory was 6.0GB in the beginning and 6.9GB in the end (delta: 898.6MB). Free memory was 4.2GB in the beginning and 2.7GB in the end (delta: 1.5GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 11648 with TraceHistMax 2,while executing Executor.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 16347 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 727.0s, OverallIterations: 48, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 35.9s, AutomataDifference: 30.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2134913 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2134913 mSDsluCounter, 5552638 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4203983 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1606 IncrementalHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1348655 mSDtfsCounter, 1606 mSolverCounterSat, 6.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 511882 GetRequests, 511523 SyntacticMatches, 0 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17923occurred in iteration=47, InterpolantAutomatonStates: 346, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.7s AutomataMinimizationTime, 47 MinimizatonAttempts, 431934 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 135.4s SsaConstructionTime, 357.3s SatisfiabilityAnalysisTime, 41.4s InterpolantComputationTime, 515396 NumberOfCodeBlocks, 515396 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 515349 ConstructedInterpolants, 0 QuantifiedInterpolants, 530507 SizeOfPredicates, 148 NumberOfNonLiveVariables, 2301290 ConjunctsInSsa, 604 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 44352/44352 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