/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.pgm_protocol.5.prop6-func-interl.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 20:47:44,344 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 20:47:44,412 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 20:47:44,415 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 20:47:44,416 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 20:47:44,437 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 20:47:44,437 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 20:47:44,438 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 20:47:44,439 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 20:47:44,442 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 20:47:44,442 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 20:47:44,442 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 20:47:44,443 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 20:47:44,444 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 20:47:44,444 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 20:47:44,444 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 20:47:44,444 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 20:47:44,444 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 20:47:44,444 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 20:47:44,445 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 20:47:44,446 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 20:47:44,446 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 20:47:44,446 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 20:47:44,446 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 20:47:44,446 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 20:47:44,447 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 20:47:44,447 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 20:47:44,447 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 20:47:44,447 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 20:47:44,447 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 20:47:44,448 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 20:47:44,448 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 20:47:44,448 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 20:47:44,448 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 20:47:44,449 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 20:47:44,449 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 20:47:44,449 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 20:47:44,449 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 20:47:44,449 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 20:47:44,449 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 20:47:44,449 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 20:47:44,644 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 20:47:44,661 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 20:47:44,663 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 20:47:44,677 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 20:47:44,677 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 20:47:44,678 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop6-func-interl.c
[2023-12-25 20:47:45,697 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 20:47:46,059 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 20:47:46,059 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.5.prop6-func-interl.c
[2023-12-25 20:47:46,092 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cde4152c/df5aaaa8ecc247eb9bc9a31de163c8f0/FLAGfb8f38c38
[2023-12-25 20:47:46,106 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cde4152c/df5aaaa8ecc247eb9bc9a31de163c8f0
[2023-12-25 20:47:46,108 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 20:47:46,110 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 20:47:46,111 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 20:47:46,111 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 20:47:46,115 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 20:47:46,115 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:47:46" (1/1) ...
[2023-12-25 20:47:46,116 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623f75c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:46, skipping insertion in model container
[2023-12-25 20:47:46,116 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:47:46" (1/1) ...
[2023-12-25 20:47:46,254 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 20:47:46,432 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.pgm_protocol.5.prop6-func-interl.c[1179,1192]
[2023-12-25 20:47:47,366 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 20:47:47,373 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 20:47:47,382 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.pgm_protocol.5.prop6-func-interl.c[1179,1192]
[2023-12-25 20:47:48,107 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 20:47:48,118 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 20:47:48,118 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48 WrapperNode
[2023-12-25 20:47:48,118 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 20:47:48,120 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 20:47:48,120 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 20:47:48,120 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 20:47:48,124 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:48,393 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:51,561 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49260
[2023-12-25 20:47:51,562 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 20:47:51,562 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 20:47:51,563 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 20:47:51,563 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 20:47:51,599 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:51,600 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:53,085 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:53,410 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 20:47:53,411 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:53,411 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:54,466 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:54,614 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:54,789 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:54,913 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:55,730 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 20:47:55,731 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 20:47:55,731 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 20:47:55,731 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 20:47:55,732 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (1/1) ...
[2023-12-25 20:47:55,743 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 20:47:55,750 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:47:55,781 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 20:47:55,811 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 20:47:55,816 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 20:47:55,816 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 20:47:55,816 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 20:47:55,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 20:47:57,672 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 20:47:57,674 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 20:48:14,503 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 20:48:15,231 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 20:48:15,231 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 20:48:15,232 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:48:15 BoogieIcfgContainer
[2023-12-25 20:48:15,233 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 20:48:15,235 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 20:48:15,235 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 20:48:15,238 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 20:48:15,238 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 08:47:46" (1/3) ...
[2023-12-25 20:48:15,239 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2417b84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:48:15, skipping insertion in model container
[2023-12-25 20:48:15,239 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:47:48" (2/3) ...
[2023-12-25 20:48:15,239 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2417b84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:48:15, skipping insertion in model container
[2023-12-25 20:48:15,239 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:48:15" (3/3) ...
[2023-12-25 20:48:15,240 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.5.prop6-func-interl.c
[2023-12-25 20:48:15,253 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 20:48:15,253 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 20:48:15,395 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 20:48:15,400 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;@6efcf07f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 20:48:15,401 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 20:48:15,429 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10810 states, 10808 states have (on average 1.6672834937083643) internal successors, (18020), 10809 states have internal predecessors, (18020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:15,456 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 485
[2023-12-25 20:48:15,457 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:15,457 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]
[2023-12-25 20:48:15,458 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:15,461 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:15,462 INFO  L85        PathProgramCache]: Analyzing trace with hash -541906653, now seen corresponding path program 1 times
[2023-12-25 20:48:15,468 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:15,468 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720577420]
[2023-12-25 20:48:15,468 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:15,469 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:15,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:17,046 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 20:48:17,047 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:17,047 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720577420]
[2023-12-25 20:48:17,048 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720577420] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:17,048 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:17,048 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:48:17,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100757194]
[2023-12-25 20:48:17,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:17,055 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:48:17,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:17,083 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:48:17,084 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:48:17,105 INFO  L87              Difference]: Start difference. First operand  has 10810 states, 10808 states have (on average 1.6672834937083643) internal successors, (18020), 10809 states have internal predecessors, (18020), 0 states have call successors, (0), 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 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:17,475 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:17,475 INFO  L93              Difference]: Finished difference Result 21094 states and 35166 transitions.
[2023-12-25 20:48:17,477 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:48:17,478 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 484
[2023-12-25 20:48:17,481 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:17,524 INFO  L225             Difference]: With dead ends: 21094
[2023-12-25 20:48:17,524 INFO  L226             Difference]: Without dead ends: 10810
[2023-12-25 20:48:17,543 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 20:48:17,546 INFO  L413           NwaCegarLoop]: 18013 mSDtfsCounter, 1 mSDsluCounter, 36021 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54034 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 20:48:17,547 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54034 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:48:17,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10810 states.
[2023-12-25 20:48:17,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 10810.
[2023-12-25 20:48:17,739 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10810 states, 10809 states have (on average 1.6669442131557035) internal successors, (18018), 10809 states have internal predecessors, (18018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:17,758 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10810 states to 10810 states and 18018 transitions.
[2023-12-25 20:48:17,760 INFO  L78                 Accepts]: Start accepts. Automaton has 10810 states and 18018 transitions. Word has length 484
[2023-12-25 20:48:17,761 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:17,761 INFO  L495      AbstractCegarLoop]: Abstraction has 10810 states and 18018 transitions.
[2023-12-25 20:48:17,761 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:17,761 INFO  L276                IsEmpty]: Start isEmpty. Operand 10810 states and 18018 transitions.
[2023-12-25 20:48:17,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 486
[2023-12-25 20:48:17,766 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:17,766 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:48:17,766 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 20:48:17,766 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:17,766 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:17,767 INFO  L85        PathProgramCache]: Analyzing trace with hash 382490769, now seen corresponding path program 1 times
[2023-12-25 20:48:17,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:17,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814898536]
[2023-12-25 20:48:17,767 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:17,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:17,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:18,675 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 20:48:18,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:18,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814898536]
[2023-12-25 20:48:18,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814898536] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:18,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:18,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 20:48:18,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506326805]
[2023-12-25 20:48:18,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:18,680 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:48:18,683 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:18,683 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:48:18,684 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:48:18,684 INFO  L87              Difference]: Start difference. First operand 10810 states and 18018 transitions. Second operand  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:19,021 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:19,022 INFO  L93              Difference]: Finished difference Result 21097 states and 35164 transitions.
[2023-12-25 20:48:19,022 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:48:19,027 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 485
[2023-12-25 20:48:19,028 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:19,053 INFO  L225             Difference]: With dead ends: 21097
[2023-12-25 20:48:19,053 INFO  L226             Difference]: Without dead ends: 10813
[2023-12-25 20:48:19,065 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 20:48:19,066 INFO  L413           NwaCegarLoop]: 18013 mSDtfsCounter, 1 mSDsluCounter, 36019 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54032 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 20:48:19,067 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54032 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:48:19,080 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10813 states.
[2023-12-25 20:48:19,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 10812.
[2023-12-25 20:48:19,204 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10812 states, 10811 states have (on average 1.666820830635464) internal successors, (18020), 10811 states have internal predecessors, (18020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:19,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18020 transitions.
[2023-12-25 20:48:19,227 INFO  L78                 Accepts]: Start accepts. Automaton has 10812 states and 18020 transitions. Word has length 485
[2023-12-25 20:48:19,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:19,228 INFO  L495      AbstractCegarLoop]: Abstraction has 10812 states and 18020 transitions.
[2023-12-25 20:48:19,229 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:19,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 10812 states and 18020 transitions.
[2023-12-25 20:48:19,233 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2023-12-25 20:48:19,233 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:19,233 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]
[2023-12-25 20:48:19,234 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 20:48:19,234 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:19,234 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:19,234 INFO  L85        PathProgramCache]: Analyzing trace with hash -1238117635, now seen corresponding path program 1 times
[2023-12-25 20:48:19,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:19,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876945540]
[2023-12-25 20:48:19,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:19,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:19,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:20,100 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 20:48:20,101 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:20,101 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876945540]
[2023-12-25 20:48:20,101 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876945540] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:20,101 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:20,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 20:48:20,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795570563]
[2023-12-25 20:48:20,102 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:20,103 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:20,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:20,104 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:20,105 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:48:20,106 INFO  L87              Difference]: Start difference. First operand 10812 states and 18020 transitions. Second operand  has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:20,594 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:20,595 INFO  L93              Difference]: Finished difference Result 31384 states and 52309 transitions.
[2023-12-25 20:48:20,595 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 20:48:20,595 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 486
[2023-12-25 20:48:20,596 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:20,637 INFO  L225             Difference]: With dead ends: 31384
[2023-12-25 20:48:20,637 INFO  L226             Difference]: Without dead ends: 21098
[2023-12-25 20:48:20,652 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 20:48:20,654 INFO  L413           NwaCegarLoop]: 18326 mSDtfsCounter, 34266 mSDsluCounter, 54346 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34266 SdHoareTripleChecker+Valid, 72672 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:20,655 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34266 Valid, 72672 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:48:20,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21098 states.
[2023-12-25 20:48:20,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21098 to 10817.
[2023-12-25 20:48:20,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10817 states, 10816 states have (on average 1.6666974852071006) internal successors, (18027), 10816 states have internal predecessors, (18027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:20,969 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 18027 transitions.
[2023-12-25 20:48:20,969 INFO  L78                 Accepts]: Start accepts. Automaton has 10817 states and 18027 transitions. Word has length 486
[2023-12-25 20:48:20,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:20,970 INFO  L495      AbstractCegarLoop]: Abstraction has 10817 states and 18027 transitions.
[2023-12-25 20:48:20,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:20,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 10817 states and 18027 transitions.
[2023-12-25 20:48:20,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 488
[2023-12-25 20:48:20,974 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:20,975 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 20:48:20,975 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 20:48:20,975 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:20,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:20,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 2147221469, now seen corresponding path program 1 times
[2023-12-25 20:48:20,976 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:20,976 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943968339]
[2023-12-25 20:48:20,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:20,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:21,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:21,635 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 20:48:21,635 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:21,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943968339]
[2023-12-25 20:48:21,635 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943968339] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:21,635 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:21,635 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 20:48:21,636 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396744031]
[2023-12-25 20:48:21,636 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:21,636 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:48:21,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:21,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:48:21,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:48:21,638 INFO  L87              Difference]: Start difference. First operand 10817 states and 18027 transitions. Second operand  has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:22,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:22,140 INFO  L93              Difference]: Finished difference Result 31387 states and 52310 transitions.
[2023-12-25 20:48:22,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:48:22,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 487
[2023-12-25 20:48:22,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:22,167 INFO  L225             Difference]: With dead ends: 31387
[2023-12-25 20:48:22,167 INFO  L226             Difference]: Without dead ends: 21096
[2023-12-25 20:48:22,179 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:48:22,183 INFO  L413           NwaCegarLoop]: 18324 mSDtfsCounter, 17126 mSDsluCounter, 54641 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17126 SdHoareTripleChecker+Valid, 72965 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:22,184 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17126 Valid, 72965 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:48:22,199 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21096 states.
[2023-12-25 20:48:22,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21096 to 10817.
[2023-12-25 20:48:22,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10817 states, 10816 states have (on average 1.6666974852071006) internal successors, (18027), 10816 states have internal predecessors, (18027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:22,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 18027 transitions.
[2023-12-25 20:48:22,358 INFO  L78                 Accepts]: Start accepts. Automaton has 10817 states and 18027 transitions. Word has length 487
[2023-12-25 20:48:22,358 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:22,358 INFO  L495      AbstractCegarLoop]: Abstraction has 10817 states and 18027 transitions.
[2023-12-25 20:48:22,359 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:22,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 10817 states and 18027 transitions.
[2023-12-25 20:48:22,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 489
[2023-12-25 20:48:22,363 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:22,363 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]
[2023-12-25 20:48:22,363 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 20:48:22,363 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:22,364 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:22,364 INFO  L85        PathProgramCache]: Analyzing trace with hash -948728555, now seen corresponding path program 1 times
[2023-12-25 20:48:22,364 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:22,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457640623]
[2023-12-25 20:48:22,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:22,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:22,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:23,094 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 20:48:23,094 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:23,094 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457640623]
[2023-12-25 20:48:23,094 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457640623] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:23,094 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:23,094 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 20:48:23,095 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107913185]
[2023-12-25 20:48:23,095 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:23,096 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 20:48:23,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:23,097 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 20:48:23,097 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 20:48:23,097 INFO  L87              Difference]: Start difference. First operand 10817 states and 18027 transitions. Second operand  has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:23,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:23,612 INFO  L93              Difference]: Finished difference Result 31569 states and 52614 transitions.
[2023-12-25 20:48:23,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:48:23,613 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 488
[2023-12-25 20:48:23,614 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:23,642 INFO  L225             Difference]: With dead ends: 31569
[2023-12-25 20:48:23,643 INFO  L226             Difference]: Without dead ends: 21278
[2023-12-25 20:48:23,657 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2023-12-25 20:48:23,657 INFO  L413           NwaCegarLoop]: 18314 mSDtfsCounter, 69235 mSDsluCounter, 53139 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69235 SdHoareTripleChecker+Valid, 71453 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:23,657 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [69235 Valid, 71453 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:48:23,676 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21278 states.
[2023-12-25 20:48:23,808 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21278 to 11002.
[2023-12-25 20:48:23,820 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11002 states, 11001 states have (on average 1.666575765839469) internal successors, (18334), 11001 states have internal predecessors, (18334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:23,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11002 states to 11002 states and 18334 transitions.
[2023-12-25 20:48:23,836 INFO  L78                 Accepts]: Start accepts. Automaton has 11002 states and 18334 transitions. Word has length 488
[2023-12-25 20:48:23,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:23,837 INFO  L495      AbstractCegarLoop]: Abstraction has 11002 states and 18334 transitions.
[2023-12-25 20:48:23,837 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:23,837 INFO  L276                IsEmpty]: Start isEmpty. Operand 11002 states and 18334 transitions.
[2023-12-25 20:48:24,289 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7324
[2023-12-25 20:48:24,290 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:24,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:48:24,293 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-25 20:48:24,294 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:24,294 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:24,296 INFO  L85        PathProgramCache]: Analyzing trace with hash -2086541254, now seen corresponding path program 1 times
[2023-12-25 20:48:24,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:24,297 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296117697]
[2023-12-25 20:48:24,297 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:24,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:24,953 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:24,954 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219095028]
[2023-12-25 20:48:24,955 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:24,955 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:24,955 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:24,967 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 20:48:24,968 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 20:48:34,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:34,446 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36602 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 20:48:34,709 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:34,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:48:34,858 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:48:34,858 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:34,858 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296117697]
[2023-12-25 20:48:34,858 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:34,858 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219095028]
[2023-12-25 20:48:34,858 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [219095028] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:34,858 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:34,859 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:48:34,859 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38084497]
[2023-12-25 20:48:34,859 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:34,864 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-25 20:48:34,864 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:34,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-25 20:48:34,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-25 20:48:34,871 INFO  L87              Difference]: Start difference. First operand 11002 states and 18334 transitions. Second operand  has 3 states, 3 states have (on average 2441.0) internal successors, (7323), 3 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:35,085 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:35,085 INFO  L93              Difference]: Finished difference Result 21298 states and 35493 transitions.
[2023-12-25 20:48:35,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-25 20:48:35,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2441.0) internal successors, (7323), 3 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7323
[2023-12-25 20:48:35,090 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:35,103 INFO  L225             Difference]: With dead ends: 21298
[2023-12-25 20:48:35,103 INFO  L226             Difference]: Without dead ends: 11007
[2023-12-25 20:48:35,110 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7322 GetRequests, 7321 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-25 20:48:35,111 INFO  L413           NwaCegarLoop]: 18014 mSDtfsCounter, 6 mSDsluCounter, 18009 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 36023 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:35,111 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 36023 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 20:48:35,122 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11007 states.
[2023-12-25 20:48:35,212 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11007 to 11003.
[2023-12-25 20:48:35,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.666515179058353) internal successors, (18335), 11002 states have internal predecessors, (18335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:35,237 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18335 transitions.
[2023-12-25 20:48:35,237 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18335 transitions. Word has length 7323
[2023-12-25 20:48:35,239 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:35,239 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18335 transitions.
[2023-12-25 20:48:35,241 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2441.0) internal successors, (7323), 3 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:35,241 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18335 transitions.
[2023-12-25 20:48:35,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7324
[2023-12-25 20:48:35,612 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:35,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:48:35,724 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-25 20:48:35,830 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-12-25 20:48:35,831 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:35,831 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:35,833 INFO  L85        PathProgramCache]: Analyzing trace with hash 1823309356, now seen corresponding path program 1 times
[2023-12-25 20:48:35,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:35,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206515449]
[2023-12-25 20:48:35,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:35,834 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:36,480 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:36,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956859198]
[2023-12-25 20:48:36,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:36,482 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:36,482 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:36,506 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 20:48:36,507 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 20:48:45,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:48:45,773 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36603 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:48:45,893 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:48:48,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:48:48,153 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:48:48,153 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:48:48,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206515449]
[2023-12-25 20:48:48,153 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:48:48,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956859198]
[2023-12-25 20:48:48,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956859198] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:48:48,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:48:48,154 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:48:48,154 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108628549]
[2023-12-25 20:48:48,154 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:48:48,162 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:48:48,162 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:48:48,169 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:48:48,169 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:48:48,172 INFO  L87              Difference]: Start difference. First operand 11003 states and 18335 transitions. Second operand  has 4 states, 4 states have (on average 1830.75) internal successors, (7323), 3 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:53,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:48:53,375 INFO  L93              Difference]: Finished difference Result 21872 states and 36446 transitions.
[2023-12-25 20:48:53,377 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:48:53,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1830.75) internal successors, (7323), 3 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7323
[2023-12-25 20:48:53,380 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:48:53,417 INFO  L225             Difference]: With dead ends: 21872
[2023-12-25 20:48:53,417 INFO  L226             Difference]: Without dead ends: 11580
[2023-12-25 20:48:53,427 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7323 GetRequests, 7320 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:48:53,428 INFO  L413           NwaCegarLoop]: 13972 mSDtfsCounter, 34296 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 6003 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34296 SdHoareTripleChecker+Valid, 15419 SdHoareTripleChecker+Invalid, 6003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:48:53,429 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34296 Valid, 15419 Invalid, 6003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6003 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2023-12-25 20:48:53,461 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11580 states.
[2023-12-25 20:48:53,559 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11580 to 11003.
[2023-12-25 20:48:53,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.666424286493365) internal successors, (18334), 11002 states have internal predecessors, (18334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:53,586 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18334 transitions.
[2023-12-25 20:48:53,586 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18334 transitions. Word has length 7323
[2023-12-25 20:48:53,588 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:48:53,588 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18334 transitions.
[2023-12-25 20:48:53,590 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1830.75) internal successors, (7323), 3 states have internal predecessors, (7323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:48:53,590 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18334 transitions.
[2023-12-25 20:48:53,956 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7325
[2023-12-25 20:48:53,956 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:48:53,959 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:48:54,061 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-25 20:48:54,172 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2023-12-25 20:48:54,172 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:48:54,174 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:48:54,175 INFO  L85        PathProgramCache]: Analyzing trace with hash -583912770, now seen corresponding path program 1 times
[2023-12-25 20:48:54,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:48:54,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847190657]
[2023-12-25 20:48:54,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:54,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:48:54,848 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:48:54,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223771207]
[2023-12-25 20:48:54,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:48:54,850 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:48:54,850 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:48:54,851 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 20:48:54,853 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 20:49:03,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:04,058 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36604 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:49:04,150 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:06,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:49:06,108 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:49:06,108 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:06,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847190657]
[2023-12-25 20:49:06,108 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:06,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223771207]
[2023-12-25 20:49:06,109 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [223771207] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:49:06,109 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:49:06,109 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:49:06,110 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947410041]
[2023-12-25 20:49:06,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:06,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:49:06,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:06,122 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:49:06,122 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:49:06,124 INFO  L87              Difference]: Start difference. First operand 11003 states and 18334 transitions. Second operand  has 4 states, 4 states have (on average 1831.0) internal successors, (7324), 3 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:10,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:10,595 INFO  L93              Difference]: Finished difference Result 21885 states and 36465 transitions.
[2023-12-25 20:49:10,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:49:10,597 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1831.0) internal successors, (7324), 3 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7324
[2023-12-25 20:49:10,598 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:10,612 INFO  L225             Difference]: With dead ends: 21885
[2023-12-25 20:49:10,613 INFO  L226             Difference]: Without dead ends: 11593
[2023-12-25 20:49:10,622 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7324 GetRequests, 7321 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:49:10,623 INFO  L413           NwaCegarLoop]: 13991 mSDtfsCounter, 34285 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 6005 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34285 SdHoareTripleChecker+Valid, 15458 SdHoareTripleChecker+Invalid, 6005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:10,623 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34285 Valid, 15458 Invalid, 6005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6005 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-12-25 20:49:10,635 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11593 states.
[2023-12-25 20:49:10,715 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 11003.
[2023-12-25 20:49:10,724 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.6663333939283766) internal successors, (18333), 11002 states have internal predecessors, (18333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:10,846 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18333 transitions.
[2023-12-25 20:49:10,847 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18333 transitions. Word has length 7324
[2023-12-25 20:49:10,848 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:10,848 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18333 transitions.
[2023-12-25 20:49:10,850 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1831.0) internal successors, (7324), 3 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:10,850 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18333 transitions.
[2023-12-25 20:49:11,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7326
[2023-12-25 20:49:11,182 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:11,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:49:11,275 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 20:49:11,404 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:11,405 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:11,407 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:11,409 INFO  L85        PathProgramCache]: Analyzing trace with hash 927822601, now seen corresponding path program 1 times
[2023-12-25 20:49:11,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:11,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355857509]
[2023-12-25 20:49:11,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:11,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:12,158 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:12,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659464924]
[2023-12-25 20:49:12,159 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:12,159 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:12,160 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:12,160 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 20:49:12,162 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 20:49:20,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:21,031 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36605 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:49:21,139 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:23,009 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:49:23,009 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:49:23,009 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:23,009 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355857509]
[2023-12-25 20:49:23,009 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:23,012 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659464924]
[2023-12-25 20:49:23,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [659464924] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:49:23,012 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:49:23,013 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:49:23,013 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020333025]
[2023-12-25 20:49:23,013 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:23,018 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:49:23,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:23,022 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:49:23,022 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:49:23,023 INFO  L87              Difference]: Start difference. First operand 11003 states and 18333 transitions. Second operand  has 4 states, 4 states have (on average 1831.25) internal successors, (7325), 3 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:28,085 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:28,086 INFO  L93              Difference]: Finished difference Result 21901 states and 36489 transitions.
[2023-12-25 20:49:28,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:49:28,088 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1831.25) internal successors, (7325), 3 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7325
[2023-12-25 20:49:28,088 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:28,107 INFO  L225             Difference]: With dead ends: 21901
[2023-12-25 20:49:28,108 INFO  L226             Difference]: Without dead ends: 11609
[2023-12-25 20:49:28,117 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7325 GetRequests, 7322 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:49:28,119 INFO  L413           NwaCegarLoop]: 14015 mSDtfsCounter, 34272 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 6007 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34272 SdHoareTripleChecker+Valid, 15507 SdHoareTripleChecker+Invalid, 6007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:28,119 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34272 Valid, 15507 Invalid, 6007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6007 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-25 20:49:28,128 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11609 states.
[2023-12-25 20:49:28,201 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 11003.
[2023-12-25 20:49:28,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.6662425013633886) internal successors, (18332), 11002 states have internal predecessors, (18332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:28,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18332 transitions.
[2023-12-25 20:49:28,224 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18332 transitions. Word has length 7325
[2023-12-25 20:49:28,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:28,225 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18332 transitions.
[2023-12-25 20:49:28,226 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1831.25) internal successors, (7325), 3 states have internal predecessors, (7325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:28,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18332 transitions.
[2023-12-25 20:49:28,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7327
[2023-12-25 20:49:28,618 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:28,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:49:28,717 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-25 20:49:28,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:28,840 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:28,841 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:28,843 INFO  L85        PathProgramCache]: Analyzing trace with hash -420818911, now seen corresponding path program 1 times
[2023-12-25 20:49:28,843 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:28,843 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458803225]
[2023-12-25 20:49:28,844 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:28,844 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:29,451 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:29,451 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948492089]
[2023-12-25 20:49:29,452 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:29,452 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:29,453 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:29,453 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 20:49:29,455 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 20:49:38,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:38,616 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36606 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:49:38,814 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:40,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:49:40,238 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:49:40,238 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:40,238 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458803225]
[2023-12-25 20:49:40,239 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:40,239 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948492089]
[2023-12-25 20:49:40,239 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948492089] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:49:40,239 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:49:40,239 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:49:40,240 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698827410]
[2023-12-25 20:49:40,240 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:40,246 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:49:40,247 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:40,255 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:49:40,255 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:49:40,256 INFO  L87              Difference]: Start difference. First operand 11003 states and 18332 transitions. Second operand  has 4 states, 4 states have (on average 1831.5) internal successors, (7326), 3 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:44,467 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:49:44,467 INFO  L93              Difference]: Finished difference Result 21908 states and 36498 transitions.
[2023-12-25 20:49:44,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:49:44,469 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1831.5) internal successors, (7326), 3 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7326
[2023-12-25 20:49:44,470 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:49:44,479 INFO  L225             Difference]: With dead ends: 21908
[2023-12-25 20:49:44,479 INFO  L226             Difference]: Without dead ends: 11616
[2023-12-25 20:49:44,487 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7326 GetRequests, 7323 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:49:44,488 INFO  L413           NwaCegarLoop]: 14024 mSDtfsCounter, 34265 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 6009 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34265 SdHoareTripleChecker+Valid, 15526 SdHoareTripleChecker+Invalid, 6009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:49:44,488 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34265 Valid, 15526 Invalid, 6009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6009 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-25 20:49:44,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11616 states.
[2023-12-25 20:49:44,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11616 to 11003.
[2023-12-25 20:49:44,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.6661516087984003) internal successors, (18331), 11002 states have internal predecessors, (18331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:44,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18331 transitions.
[2023-12-25 20:49:44,602 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18331 transitions. Word has length 7326
[2023-12-25 20:49:44,603 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:49:44,603 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18331 transitions.
[2023-12-25 20:49:44,604 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1831.5) internal successors, (7326), 3 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:49:44,604 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18331 transitions.
[2023-12-25 20:49:44,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7328
[2023-12-25 20:49:44,994 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:49:44,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:49:45,111 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-25 20:49:45,213 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-12-25 20:49:45,214 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:49:45,215 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:49:45,217 INFO  L85        PathProgramCache]: Analyzing trace with hash 915063450, now seen corresponding path program 1 times
[2023-12-25 20:49:45,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:49:45,217 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209409514]
[2023-12-25 20:49:45,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:45,218 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:49:45,913 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:49:45,913 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410991991]
[2023-12-25 20:49:45,914 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:49:45,914 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:49:45,915 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:49:45,915 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 20:49:45,936 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 20:49:55,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:49:55,386 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36607 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:49:55,478 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:49:57,388 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:49:57,388 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:49:57,388 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:49:57,388 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209409514]
[2023-12-25 20:49:57,388 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:49:57,388 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410991991]
[2023-12-25 20:49:57,388 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410991991] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:49:57,388 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:49:57,389 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:49:57,389 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892463931]
[2023-12-25 20:49:57,389 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:49:57,394 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:49:57,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:49:57,398 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:49:57,398 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:49:57,398 INFO  L87              Difference]: Start difference. First operand 11003 states and 18331 transitions. Second operand  has 4 states, 4 states have (on average 1831.75) internal successors, (7327), 3 states have internal predecessors, (7327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:02,073 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:02,073 INFO  L93              Difference]: Finished difference Result 21912 states and 36502 transitions.
[2023-12-25 20:50:02,073 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:50:02,075 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1831.75) internal successors, (7327), 3 states have internal predecessors, (7327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7327
[2023-12-25 20:50:02,076 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:02,086 INFO  L225             Difference]: With dead ends: 21912
[2023-12-25 20:50:02,086 INFO  L226             Difference]: Without dead ends: 11620
[2023-12-25 20:50:02,092 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7327 GetRequests, 7324 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:50:02,092 INFO  L413           NwaCegarLoop]: 14028 mSDtfsCounter, 34260 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 6011 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34260 SdHoareTripleChecker+Valid, 15535 SdHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:02,092 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34260 Valid, 15535 Invalid, 6011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6011 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2023-12-25 20:50:02,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11620 states.
[2023-12-25 20:50:02,187 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 11003.
[2023-12-25 20:50:02,198 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.666060716233412) internal successors, (18330), 11002 states have internal predecessors, (18330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:02,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18330 transitions.
[2023-12-25 20:50:02,209 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18330 transitions. Word has length 7327
[2023-12-25 20:50:02,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:02,210 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18330 transitions.
[2023-12-25 20:50:02,212 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1831.75) internal successors, (7327), 3 states have internal predecessors, (7327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:02,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18330 transitions.
[2023-12-25 20:50:02,559 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7329
[2023-12-25 20:50:02,559 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:02,562 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:50:02,662 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 20:50:02,776 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:02,776 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:02,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:02,779 INFO  L85        PathProgramCache]: Analyzing trace with hash 1312535020, now seen corresponding path program 1 times
[2023-12-25 20:50:02,779 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:02,779 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745457099]
[2023-12-25 20:50:02,780 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:02,780 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:03,376 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:03,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278025676]
[2023-12-25 20:50:03,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:03,378 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:03,378 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:03,379 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 20:50:03,381 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 20:50:12,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:12,713 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36608 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:50:12,793 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:14,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:50:14,211 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:50:14,211 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:14,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745457099]
[2023-12-25 20:50:14,211 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:14,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278025676]
[2023-12-25 20:50:14,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278025676] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:50:14,212 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:50:14,212 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:50:14,212 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546341394]
[2023-12-25 20:50:14,212 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:14,217 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:50:14,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:14,220 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:50:14,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:50:14,221 INFO  L87              Difference]: Start difference. First operand 11003 states and 18330 transitions. Second operand  has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 3 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:18,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:18,317 INFO  L93              Difference]: Finished difference Result 21937 states and 36541 transitions.
[2023-12-25 20:50:18,317 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:50:18,319 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 3 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7328
[2023-12-25 20:50:18,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:18,344 INFO  L225             Difference]: With dead ends: 21937
[2023-12-25 20:50:18,345 INFO  L226             Difference]: Without dead ends: 11645
[2023-12-25 20:50:18,351 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7328 GetRequests, 7325 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:50:18,352 INFO  L413           NwaCegarLoop]: 14067 mSDtfsCounter, 34241 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 6013 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34241 SdHoareTripleChecker+Valid, 15614 SdHoareTripleChecker+Invalid, 6013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:18,352 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34241 Valid, 15614 Invalid, 6013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6013 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2023-12-25 20:50:18,360 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11645 states.
[2023-12-25 20:50:18,437 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11645 to 11003.
[2023-12-25 20:50:18,447 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.665969823668424) internal successors, (18329), 11002 states have internal predecessors, (18329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:18,458 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18329 transitions.
[2023-12-25 20:50:18,459 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18329 transitions. Word has length 7328
[2023-12-25 20:50:18,460 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:18,460 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18329 transitions.
[2023-12-25 20:50:18,461 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 3 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:18,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18329 transitions.
[2023-12-25 20:50:18,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7330
[2023-12-25 20:50:18,790 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:18,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:50:18,886 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 20:50:19,004 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:19,005 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:19,006 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:19,007 INFO  L85        PathProgramCache]: Analyzing trace with hash -584851185, now seen corresponding path program 1 times
[2023-12-25 20:50:19,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:19,008 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444538483]
[2023-12-25 20:50:19,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:19,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:19,574 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:19,575 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686522419]
[2023-12-25 20:50:19,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:19,576 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:19,576 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:19,577 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 20:50:19,601 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 20:50:28,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:28,704 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36609 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:50:28,787 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:30,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:50:30,321 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:50:30,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:30,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444538483]
[2023-12-25 20:50:30,321 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:30,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686522419]
[2023-12-25 20:50:30,322 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686522419] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:50:30,322 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:50:30,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:50:30,322 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370487081]
[2023-12-25 20:50:30,322 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:30,330 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:50:30,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:30,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:50:30,339 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:50:30,341 INFO  L87              Difference]: Start difference. First operand 11003 states and 18329 transitions. Second operand  has 4 states, 4 states have (on average 1832.25) internal successors, (7329), 3 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:34,075 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:34,075 INFO  L93              Difference]: Finished difference Result 21956 states and 36570 transitions.
[2023-12-25 20:50:34,075 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:50:34,077 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1832.25) internal successors, (7329), 3 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7329
[2023-12-25 20:50:34,078 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:34,087 INFO  L225             Difference]: With dead ends: 21956
[2023-12-25 20:50:34,087 INFO  L226             Difference]: Without dead ends: 11664
[2023-12-25 20:50:34,092 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7329 GetRequests, 7326 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:50:34,094 INFO  L413           NwaCegarLoop]: 14096 mSDtfsCounter, 34226 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 6015 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34226 SdHoareTripleChecker+Valid, 15673 SdHoareTripleChecker+Invalid, 6015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:34,094 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34226 Valid, 15673 Invalid, 6015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6015 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-25 20:50:34,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11664 states.
[2023-12-25 20:50:34,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11664 to 11003.
[2023-12-25 20:50:34,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.6658789311034357) internal successors, (18328), 11002 states have internal predecessors, (18328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:34,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18328 transitions.
[2023-12-25 20:50:34,214 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18328 transitions. Word has length 7329
[2023-12-25 20:50:34,215 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:34,215 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18328 transitions.
[2023-12-25 20:50:34,216 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1832.25) internal successors, (7329), 3 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:34,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18328 transitions.
[2023-12-25 20:50:34,595 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7331
[2023-12-25 20:50:34,596 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:34,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:50:34,696 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-12-25 20:50:34,799 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,SelfDestructingSolverStorable12
[2023-12-25 20:50:34,800 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:34,800 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:34,802 INFO  L85        PathProgramCache]: Analyzing trace with hash 643707957, now seen corresponding path program 1 times
[2023-12-25 20:50:34,802 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:34,802 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601947569]
[2023-12-25 20:50:34,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:34,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:35,539 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:35,539 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580575648]
[2023-12-25 20:50:35,540 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:35,540 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:35,540 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:35,556 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 20:50:35,558 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 20:50:44,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:50:44,948 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36610 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 20:50:45,040 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:50:46,496 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:50:46,496 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:50:46,496 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:50:46,497 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601947569]
[2023-12-25 20:50:46,497 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:50:46,497 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580575648]
[2023-12-25 20:50:46,497 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580575648] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:50:46,497 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:50:46,498 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-25 20:50:46,498 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257870792]
[2023-12-25 20:50:46,498 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:50:46,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 20:50:46,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:50:46,507 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 20:50:46,508 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 20:50:46,508 INFO  L87              Difference]: Start difference. First operand 11003 states and 18328 transitions. Second operand  has 4 states, 4 states have (on average 1832.5) internal successors, (7330), 3 states have internal predecessors, (7330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:50,723 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:50:50,724 INFO  L93              Difference]: Finished difference Result 21969 states and 36589 transitions.
[2023-12-25 20:50:50,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 20:50:50,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1832.5) internal successors, (7330), 3 states have internal predecessors, (7330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7330
[2023-12-25 20:50:50,726 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:50:50,737 INFO  L225             Difference]: With dead ends: 21969
[2023-12-25 20:50:50,737 INFO  L226             Difference]: Without dead ends: 11677
[2023-12-25 20:50:50,745 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7330 GetRequests, 7327 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:50:50,746 INFO  L413           NwaCegarLoop]: 14115 mSDtfsCounter, 34215 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 6017 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34215 SdHoareTripleChecker+Valid, 15712 SdHoareTripleChecker+Invalid, 6017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2023-12-25 20:50:50,746 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34215 Valid, 15712 Invalid, 6017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6017 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2023-12-25 20:50:50,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11677 states.
[2023-12-25 20:50:50,950 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11677 to 11003.
[2023-12-25 20:50:50,961 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11003 states, 11002 states have (on average 1.6657880385384476) internal successors, (18327), 11002 states have internal predecessors, (18327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:50,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 18327 transitions.
[2023-12-25 20:50:50,971 INFO  L78                 Accepts]: Start accepts. Automaton has 11003 states and 18327 transitions. Word has length 7330
[2023-12-25 20:50:50,972 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:50:50,972 INFO  L495      AbstractCegarLoop]: Abstraction has 11003 states and 18327 transitions.
[2023-12-25 20:50:50,973 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1832.5) internal successors, (7330), 3 states have internal predecessors, (7330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:50:50,973 INFO  L276                IsEmpty]: Start isEmpty. Operand 11003 states and 18327 transitions.
[2023-12-25 20:50:51,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7332
[2023-12-25 20:50:51,293 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:50:51,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:50:51,426 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 20:50:51,511 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2023-12-25 20:50:51,512 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:50:51,514 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:50:51,516 INFO  L85        PathProgramCache]: Analyzing trace with hash 47647980, now seen corresponding path program 1 times
[2023-12-25 20:50:51,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:50:51,516 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825573493]
[2023-12-25 20:50:51,517 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:51,517 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:50:52,232 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:50:52,232 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980359909]
[2023-12-25 20:50:52,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:50:52,234 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:50:52,234 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:50:52,235 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 20:50:52,239 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 20:51:01,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:02,023 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36611 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-25 20:51:02,123 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:05,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:51:05,913 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:51:05,913 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:05,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825573493]
[2023-12-25 20:51:05,913 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:05,913 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980359909]
[2023-12-25 20:51:05,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980359909] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:51:05,913 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:51:05,914 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-12-25 20:51:05,914 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013404892]
[2023-12-25 20:51:05,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:05,918 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-25 20:51:05,918 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:05,921 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-25 20:51:05,921 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-12-25 20:51:05,922 INFO  L87              Difference]: Start difference. First operand 11003 states and 18327 transitions. Second operand  has 9 states, 9 states have (on average 814.5555555555555) internal successors, (7331), 9 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:07,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:07,082 INFO  L93              Difference]: Finished difference Result 47462 states and 79065 transitions.
[2023-12-25 20:51:07,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2023-12-25 20:51:07,084 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 814.5555555555555) internal successors, (7331), 9 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7331
[2023-12-25 20:51:07,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:07,121 INFO  L225             Difference]: With dead ends: 47462
[2023-12-25 20:51:07,121 INFO  L226             Difference]: Without dead ends: 37170
[2023-12-25 20:51:07,133 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7353 GetRequests, 7331 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552
[2023-12-25 20:51:07,133 INFO  L413           NwaCegarLoop]: 26071 mSDtfsCounter, 124912 mSDsluCounter, 132798 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124912 SdHoareTripleChecker+Valid, 158869 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:07,133 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [124912 Valid, 158869 Invalid, 117 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 20:51:07,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37170 states.
[2023-12-25 20:51:07,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37170 to 16428.
[2023-12-25 20:51:07,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16428 states, 16427 states have (on average 1.6660376209898338) internal successors, (27368), 16427 states have internal predecessors, (27368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:07,362 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16428 states to 16428 states and 27368 transitions.
[2023-12-25 20:51:07,362 INFO  L78                 Accepts]: Start accepts. Automaton has 16428 states and 27368 transitions. Word has length 7331
[2023-12-25 20:51:07,365 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:07,365 INFO  L495      AbstractCegarLoop]: Abstraction has 16428 states and 27368 transitions.
[2023-12-25 20:51:07,366 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 814.5555555555555) internal successors, (7331), 9 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:07,367 INFO  L276                IsEmpty]: Start isEmpty. Operand 16428 states and 27368 transitions.
[2023-12-25 20:51:07,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7333
[2023-12-25 20:51:07,709 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:07,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:51:07,838 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 20:51:07,936 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,SelfDestructingSolverStorable14
[2023-12-25 20:51:07,936 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:07,937 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:07,938 INFO  L85        PathProgramCache]: Analyzing trace with hash -377610162, now seen corresponding path program 1 times
[2023-12-25 20:51:07,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:07,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943975351]
[2023-12-25 20:51:07,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:07,939 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:08,604 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:08,604 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679995744]
[2023-12-25 20:51:08,606 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:08,606 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:08,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:08,621 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 20:51:08,635 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 20:51:17,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:17,804 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36614 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 20:51:17,893 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:18,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:51:18,266 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:51:18,266 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:18,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943975351]
[2023-12-25 20:51:18,266 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:18,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679995744]
[2023-12-25 20:51:18,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679995744] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:51:18,266 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:51:18,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 20:51:18,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607189992]
[2023-12-25 20:51:18,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:18,271 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 20:51:18,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:18,274 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 20:51:18,275 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 20:51:18,276 INFO  L87              Difference]: Start difference. First operand 16428 states and 27368 transitions. Second operand  has 8 states, 8 states have (on average 916.5) internal successors, (7332), 8 states have internal predecessors, (7332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:18,965 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:18,965 INFO  L93              Difference]: Finished difference Result 42606 states and 70977 transitions.
[2023-12-25 20:51:18,965 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 20:51:18,967 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 916.5) internal successors, (7332), 8 states have internal predecessors, (7332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7332
[2023-12-25 20:51:18,969 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:18,995 INFO  L225             Difference]: With dead ends: 42606
[2023-12-25 20:51:18,995 INFO  L226             Difference]: Without dead ends: 26704
[2023-12-25 20:51:19,011 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7340 GetRequests, 7328 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 20:51:19,014 INFO  L413           NwaCegarLoop]: 26071 mSDtfsCounter, 43817 mSDsluCounter, 113304 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43817 SdHoareTripleChecker+Valid, 139375 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 20:51:19,014 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [43817 Valid, 139375 Invalid, 59 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 20:51:19,038 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26704 states.
[2023-12-25 20:51:19,323 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26704 to 16430.
[2023-12-25 20:51:19,334 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16430 states, 16429 states have (on average 1.665956540264167) internal successors, (27370), 16429 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:19,352 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16430 states to 16430 states and 27370 transitions.
[2023-12-25 20:51:19,352 INFO  L78                 Accepts]: Start accepts. Automaton has 16430 states and 27370 transitions. Word has length 7332
[2023-12-25 20:51:19,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:19,354 INFO  L495      AbstractCegarLoop]: Abstraction has 16430 states and 27370 transitions.
[2023-12-25 20:51:19,355 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 916.5) internal successors, (7332), 8 states have internal predecessors, (7332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:19,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 16430 states and 27370 transitions.
[2023-12-25 20:51:19,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7334
[2023-12-25 20:51:19,705 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:19,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:51:19,824 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 20:51:19,932 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,SelfDestructingSolverStorable15
[2023-12-25 20:51:19,933 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:19,933 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:19,935 INFO  L85        PathProgramCache]: Analyzing trace with hash -1032662062, now seen corresponding path program 1 times
[2023-12-25 20:51:19,935 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:19,935 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16630429]
[2023-12-25 20:51:19,936 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:19,936 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:20,684 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:20,684 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656492150]
[2023-12-25 20:51:20,686 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:20,686 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:20,686 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:20,698 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 20:51:20,698 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 20:51:30,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:30,265 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36617 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-25 20:51:30,352 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:31,505 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:51:31,506 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:51:31,506 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:31,506 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16630429]
[2023-12-25 20:51:31,506 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:31,506 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656492150]
[2023-12-25 20:51:31,506 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [656492150] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:51:31,506 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:51:31,507 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 20:51:31,507 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473122819]
[2023-12-25 20:51:31,507 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:31,511 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:51:31,511 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:31,514 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:51:31,514 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:51:31,514 INFO  L87              Difference]: Start difference. First operand 16430 states and 27370 transitions. Second operand  has 5 states, 5 states have (on average 1466.6) internal successors, (7333), 5 states have internal predecessors, (7333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:40,581 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:51:40,581 INFO  L93              Difference]: Finished difference Result 37826 states and 63016 transitions.
[2023-12-25 20:51:40,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:51:40,583 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1466.6) internal successors, (7333), 5 states have internal predecessors, (7333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7333
[2023-12-25 20:51:40,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:51:40,599 INFO  L225             Difference]: With dead ends: 37826
[2023-12-25 20:51:40,599 INFO  L226             Difference]: Without dead ends: 21922
[2023-12-25 20:51:40,604 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7334 GetRequests, 7329 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-25 20:51:40,604 INFO  L413           NwaCegarLoop]: 25332 mSDtfsCounter, 8800 mSDsluCounter, 58975 mSDsCounter, 0 mSdLazyCounter, 15170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8800 SdHoareTripleChecker+Valid, 84307 SdHoareTripleChecker+Invalid, 15170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time
[2023-12-25 20:51:40,604 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8800 Valid, 84307 Invalid, 15170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15170 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time]
[2023-12-25 20:51:40,620 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21922 states.
[2023-12-25 20:51:40,738 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21922 to 16972.
[2023-12-25 20:51:40,755 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16972 states, 16971 states have (on average 1.665841730010017) internal successors, (28271), 16971 states have internal predecessors, (28271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:40,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16972 states to 16972 states and 28271 transitions.
[2023-12-25 20:51:40,773 INFO  L78                 Accepts]: Start accepts. Automaton has 16972 states and 28271 transitions. Word has length 7333
[2023-12-25 20:51:40,775 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:51:40,775 INFO  L495      AbstractCegarLoop]: Abstraction has 16972 states and 28271 transitions.
[2023-12-25 20:51:40,777 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1466.6) internal successors, (7333), 5 states have internal predecessors, (7333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:51:40,777 INFO  L276                IsEmpty]: Start isEmpty. Operand 16972 states and 28271 transitions.
[2023-12-25 20:51:41,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7335
[2023-12-25 20:51:41,122 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:51:41,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:51:41,237 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 20:51:41,348 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,SelfDestructingSolverStorable16
[2023-12-25 20:51:41,349 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:51:41,349 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:51:41,350 INFO  L85        PathProgramCache]: Analyzing trace with hash -1599749176, now seen corresponding path program 1 times
[2023-12-25 20:51:41,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:51:41,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577513163]
[2023-12-25 20:51:41,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:41,351 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:51:41,941 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:51:41,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38835638]
[2023-12-25 20:51:41,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:51:41,943 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:51:41,943 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:51:41,944 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 20:51:41,972 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 20:51:50,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:51:51,149 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36621 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-25 20:51:51,227 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:51:57,579 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:51:57,579 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:51:57,579 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:51:57,579 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577513163]
[2023-12-25 20:51:57,580 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:51:57,580 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38835638]
[2023-12-25 20:51:57,580 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [38835638] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:51:57,580 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:51:57,580 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 20:51:57,580 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963387365]
[2023-12-25 20:51:57,580 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:51:57,584 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:51:57,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:51:57,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:51:57,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:51:57,590 INFO  L87              Difference]: Start difference. First operand 16972 states and 28271 transitions. Second operand  has 5 states, 5 states have (on average 1466.8) internal successors, (7334), 5 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:52:07,615 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:52:07,615 INFO  L93              Difference]: Finished difference Result 38368 states and 63915 transitions.
[2023-12-25 20:52:07,615 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:52:07,617 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1466.8) internal successors, (7334), 5 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7334
[2023-12-25 20:52:07,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:52:07,639 INFO  L225             Difference]: With dead ends: 38368
[2023-12-25 20:52:07,639 INFO  L226             Difference]: Without dead ends: 21922
[2023-12-25 20:52:07,651 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7335 GetRequests, 7330 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-25 20:52:07,652 INFO  L413           NwaCegarLoop]: 25332 mSDtfsCounter, 6946 mSDsluCounter, 58975 mSDsCounter, 0 mSdLazyCounter, 15167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6946 SdHoareTripleChecker+Valid, 84307 SdHoareTripleChecker+Invalid, 15167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time
[2023-12-25 20:52:07,652 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6946 Valid, 84307 Invalid, 15167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15167 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time]
[2023-12-25 20:52:07,669 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21922 states.
[2023-12-25 20:52:07,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21922 to 19750.
[2023-12-25 20:52:07,931 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19750 states, 19749 states have (on average 1.6658564990632436) internal successors, (32899), 19749 states have internal predecessors, (32899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:52:07,951 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19750 states to 19750 states and 32899 transitions.
[2023-12-25 20:52:07,951 INFO  L78                 Accepts]: Start accepts. Automaton has 19750 states and 32899 transitions. Word has length 7334
[2023-12-25 20:52:07,953 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:52:07,953 INFO  L495      AbstractCegarLoop]: Abstraction has 19750 states and 32899 transitions.
[2023-12-25 20:52:07,954 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1466.8) internal successors, (7334), 5 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:52:07,955 INFO  L276                IsEmpty]: Start isEmpty. Operand 19750 states and 32899 transitions.
[2023-12-25 20:52:08,225 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7336
[2023-12-25 20:52:08,226 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:52:08,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:52:08,342 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2023-12-25 20:52:08,452 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,SelfDestructingSolverStorable17
[2023-12-25 20:52:08,453 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:52:08,453 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:52:08,454 INFO  L85        PathProgramCache]: Analyzing trace with hash -1714114556, now seen corresponding path program 1 times
[2023-12-25 20:52:08,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:52:08,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906008889]
[2023-12-25 20:52:08,455 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:08,455 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:52:09,073 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:52:09,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643897518]
[2023-12-25 20:52:09,075 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:52:09,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:52:09,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:52:09,076 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 20:52:09,078 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 20:52:18,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:52:18,979 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36624 conjuncts, 40 conjunts are in the unsatisfiable core
[2023-12-25 20:52:19,258 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:52:22,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:52:22,107 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:52:22,107 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:52:22,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906008889]
[2023-12-25 20:52:22,107 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:52:22,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643897518]
[2023-12-25 20:52:22,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [643897518] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:52:22,109 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:52:22,110 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2023-12-25 20:52:22,110 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248577043]
[2023-12-25 20:52:22,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:52:22,114 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-12-25 20:52:22,114 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:52:22,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-12-25 20:52:22,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2023-12-25 20:52:22,119 INFO  L87              Difference]: Start difference. First operand 19750 states and 32899 transitions. Second operand  has 15 states, 15 states have (on average 489.0) internal successors, (7335), 15 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:54:58,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:54:58,554 INFO  L93              Difference]: Finished difference Result 258466 states and 430491 transitions.
[2023-12-25 20:54:58,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. 
[2023-12-25 20:54:58,556 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 489.0) internal successors, (7335), 15 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7335
[2023-12-25 20:54:58,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:54:58,788 INFO  L225             Difference]: With dead ends: 258466
[2023-12-25 20:54:58,788 INFO  L226             Difference]: Without dead ends: 239242
[2023-12-25 20:54:58,833 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7427 GetRequests, 7339 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2470 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1205, Invalid=6805, Unknown=0, NotChecked=0, Total=8010
[2023-12-25 20:54:58,833 INFO  L413           NwaCegarLoop]: 92765 mSDtfsCounter, 276516 mSDsluCounter, 805856 mSDsCounter, 0 mSdLazyCounter, 343957 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276516 SdHoareTripleChecker+Valid, 898621 SdHoareTripleChecker+Invalid, 343960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 343957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:54:58,833 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [276516 Valid, 898621 Invalid, 343960 Unknown, 0 Unchecked, 2.1s Time], IncrementalHoareTripleChecker [3 Valid, 343957 Invalid, 0 Unknown, 0 Unchecked, 141.9s Time]
[2023-12-25 20:54:59,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239242 states.
[2023-12-25 20:54:59,847 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239242 to 19764.
[2023-12-25 20:54:59,864 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19764 states, 19763 states have (on average 1.6655366088144512) internal successors, (32916), 19763 states have internal predecessors, (32916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:54:59,884 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19764 states to 19764 states and 32916 transitions.
[2023-12-25 20:54:59,885 INFO  L78                 Accepts]: Start accepts. Automaton has 19764 states and 32916 transitions. Word has length 7335
[2023-12-25 20:54:59,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:54:59,887 INFO  L495      AbstractCegarLoop]: Abstraction has 19764 states and 32916 transitions.
[2023-12-25 20:54:59,888 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 489.0) internal successors, (7335), 15 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:54:59,888 INFO  L276                IsEmpty]: Start isEmpty. Operand 19764 states and 32916 transitions.
[2023-12-25 20:55:00,163 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7336
[2023-12-25 20:55:00,163 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:55:00,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:55:00,322 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2023-12-25 20:55:00,388 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:00,389 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:55:00,389 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:55:00,390 INFO  L85        PathProgramCache]: Analyzing trace with hash -1600692474, now seen corresponding path program 1 times
[2023-12-25 20:55:00,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:55:00,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923467369]
[2023-12-25 20:55:00,391 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:00,391 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:55:00,965 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:55:00,965 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198052741]
[2023-12-25 20:55:00,967 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:00,967 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:00,967 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:55:00,968 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 20:55:00,969 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 20:55:10,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:55:10,937 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36625 conjuncts, 72 conjunts are in the unsatisfiable core
[2023-12-25 20:55:11,021 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:55:29,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:55:29,829 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:55:29,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:55:29,830 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923467369]
[2023-12-25 20:55:29,830 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:55:29,830 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198052741]
[2023-12-25 20:55:29,830 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198052741] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:55:29,830 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:55:29,830 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28
[2023-12-25 20:55:29,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640999255]
[2023-12-25 20:55:29,831 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:55:29,835 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2023-12-25 20:55:29,835 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:55:29,838 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2023-12-25 20:55:29,838 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=701, Unknown=0, NotChecked=0, Total=756
[2023-12-25 20:55:29,839 INFO  L87              Difference]: Start difference. First operand 19764 states and 32916 transitions. Second operand  has 28 states, 28 states have (on average 261.9642857142857) internal successors, (7335), 28 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:55:46,543 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:55:46,543 INFO  L93              Difference]: Finished difference Result 228057 states and 379758 transitions.
[2023-12-25 20:55:46,543 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. 
[2023-12-25 20:55:46,545 INFO  L78                 Accepts]: Start accepts. Automaton has  has 28 states, 28 states have (on average 261.9642857142857) internal successors, (7335), 28 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7335
[2023-12-25 20:55:46,549 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:55:46,737 INFO  L225             Difference]: With dead ends: 228057
[2023-12-25 20:55:46,737 INFO  L226             Difference]: Without dead ends: 208819
[2023-12-25 20:55:46,775 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7541 GetRequests, 7334 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17777 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=7706, Invalid=35766, Unknown=0, NotChecked=0, Total=43472
[2023-12-25 20:55:46,777 INFO  L413           NwaCegarLoop]: 34674 mSDtfsCounter, 1167168 mSDsluCounter, 776313 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167168 SdHoareTripleChecker+Valid, 810987 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.9s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:55:46,777 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1167168 Valid, 810987 Invalid, 1662 Unknown, 0 Unchecked, 1.9s Time], IncrementalHoareTripleChecker [96 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-25 20:55:46,885 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 208819 states.
[2023-12-25 20:55:47,787 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 208819 to 33618.
[2023-12-25 20:55:47,814 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33618 states, 33617 states have (on average 1.6652883957521492) internal successors, (55982), 33617 states have internal predecessors, (55982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:55:47,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33618 states to 33618 states and 55982 transitions.
[2023-12-25 20:55:47,849 INFO  L78                 Accepts]: Start accepts. Automaton has 33618 states and 55982 transitions. Word has length 7335
[2023-12-25 20:55:47,852 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:55:47,852 INFO  L495      AbstractCegarLoop]: Abstraction has 33618 states and 55982 transitions.
[2023-12-25 20:55:47,853 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 28 states, 28 states have (on average 261.9642857142857) internal successors, (7335), 28 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:55:47,853 INFO  L276                IsEmpty]: Start isEmpty. Operand 33618 states and 55982 transitions.
[2023-12-25 20:55:48,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7337
[2023-12-25 20:55:48,287 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:55:48,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:55:48,419 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 20:55:48,516 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:48,517 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:55:48,517 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:55:48,517 INFO  L85        PathProgramCache]: Analyzing trace with hash 802456356, now seen corresponding path program 1 times
[2023-12-25 20:55:48,517 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:55:48,518 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508539334]
[2023-12-25 20:55:48,518 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:48,518 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:55:49,073 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:55:49,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631596941]
[2023-12-25 20:55:49,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:55:49,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:55:49,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:55:49,076 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 20:55:49,077 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 20:56:04,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:56:04,672 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36628 conjuncts, 166 conjunts are in the unsatisfiable core
[2023-12-25 20:56:04,767 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:56:17,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:56:17,362 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:56:17,363 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:56:17,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508539334]
[2023-12-25 20:56:17,363 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:56:17,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631596941]
[2023-12-25 20:56:17,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [631596941] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:56:17,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:56:17,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57
[2023-12-25 20:56:17,364 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219156377]
[2023-12-25 20:56:17,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:56:17,367 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 57 states
[2023-12-25 20:56:17,367 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:56:17,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants.
[2023-12-25 20:56:17,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=3064, Unknown=0, NotChecked=0, Total=3192
[2023-12-25 20:56:17,372 INFO  L87              Difference]: Start difference. First operand 33618 states and 55982 transitions. Second operand  has 57 states, 57 states have (on average 128.7017543859649) internal successors, (7336), 57 states have internal predecessors, (7336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:57:13,229 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:57:13,229 INFO  L93              Difference]: Finished difference Result 445971 states and 742485 transitions.
[2023-12-25 20:57:13,229 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. 
[2023-12-25 20:57:13,231 INFO  L78                 Accepts]: Start accepts. Automaton has  has 57 states, 57 states have (on average 128.7017543859649) internal successors, (7336), 57 states have internal predecessors, (7336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7336
[2023-12-25 20:57:13,234 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:57:13,816 INFO  L225             Difference]: With dead ends: 445971
[2023-12-25 20:57:13,817 INFO  L226             Difference]: Without dead ends: 412879
[2023-12-25 20:57:13,880 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7600 GetRequests, 7301 SyntacticMatches, 0 SemanticMatches, 299 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33680 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=15052, Invalid=75248, Unknown=0, NotChecked=0, Total=90300
[2023-12-25 20:57:13,885 INFO  L413           NwaCegarLoop]: 36161 mSDtfsCounter, 1248676 mSDsluCounter, 1829389 mSDsCounter, 0 mSdLazyCounter, 10354 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248676 SdHoareTripleChecker+Valid, 1865550 SdHoareTripleChecker+Invalid, 10419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.5s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 10354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2023-12-25 20:57:13,885 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1248676 Valid, 1865550 Invalid, 10419 Unknown, 0 Unchecked, 3.5s Time], IncrementalHoareTripleChecker [65 Valid, 10354 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2023-12-25 20:57:14,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 412879 states.
[2023-12-25 20:57:15,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 412879 to 59112.
[2023-12-25 20:57:16,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59112 states, 59111 states have (on average 1.6637343303276886) internal successors, (98345), 59111 states have internal predecessors, (98345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:57:16,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59112 states to 59112 states and 98345 transitions.
[2023-12-25 20:57:16,202 INFO  L78                 Accepts]: Start accepts. Automaton has 59112 states and 98345 transitions. Word has length 7336
[2023-12-25 20:57:16,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:57:16,205 INFO  L495      AbstractCegarLoop]: Abstraction has 59112 states and 98345 transitions.
[2023-12-25 20:57:16,206 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 57 states, 57 states have (on average 128.7017543859649) internal successors, (7336), 57 states have internal predecessors, (7336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:57:16,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 59112 states and 98345 transitions.
[2023-12-25 20:57:16,628 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7338
[2023-12-25 20:57:16,629 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:57:16,630 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:57:16,770 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 20:57:16,844 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:16,844 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:57:16,845 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:57:16,845 INFO  L85        PathProgramCache]: Analyzing trace with hash -1581901596, now seen corresponding path program 1 times
[2023-12-25 20:57:16,845 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:57:16,845 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097120894]
[2023-12-25 20:57:16,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:16,846 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:57:17,435 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:57:17,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387513870]
[2023-12-25 20:57:17,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:17,437 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:17,437 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:57:17,438 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 20:57:17,440 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 20:57:28,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:57:28,784 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36631 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-25 20:57:28,993 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:57:31,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:57:31,972 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:57:31,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:57:31,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097120894]
[2023-12-25 20:57:31,972 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:57:31,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387513870]
[2023-12-25 20:57:31,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387513870] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:57:31,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:57:31,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 20:57:31,974 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486253172]
[2023-12-25 20:57:31,974 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:57:31,988 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 20:57:31,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:57:31,991 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 20:57:31,991 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 20:57:31,992 INFO  L87              Difference]: Start difference. First operand 59112 states and 98345 transitions. Second operand  has 5 states, 5 states have (on average 1467.4) internal successors, (7337), 5 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:57:42,499 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:57:42,500 INFO  L93              Difference]: Finished difference Result 152956 states and 254428 transitions.
[2023-12-25 20:57:42,501 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 20:57:42,503 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1467.4) internal successors, (7337), 5 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7337
[2023-12-25 20:57:42,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:57:42,575 INFO  L225             Difference]: With dead ends: 152956
[2023-12-25 20:57:42,575 INFO  L226             Difference]: Without dead ends: 94370
[2023-12-25 20:57:42,605 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7338 GetRequests, 7333 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-25 20:57:42,606 INFO  L413           NwaCegarLoop]: 25332 mSDtfsCounter, 6941 mSDsluCounter, 58978 mSDsCounter, 0 mSdLazyCounter, 15167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6941 SdHoareTripleChecker+Valid, 84310 SdHoareTripleChecker+Invalid, 15167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time
[2023-12-25 20:57:42,606 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6941 Valid, 84310 Invalid, 15167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15167 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time]
[2023-12-25 20:57:42,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94370 states.
[2023-12-25 20:57:43,365 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94370 to 85720.
[2023-12-25 20:57:43,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85720 states, 85719 states have (on average 1.6641234732089736) internal successors, (142647), 85719 states have internal predecessors, (142647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:57:43,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85720 states to 85720 states and 142647 transitions.
[2023-12-25 20:57:43,530 INFO  L78                 Accepts]: Start accepts. Automaton has 85720 states and 142647 transitions. Word has length 7337
[2023-12-25 20:57:43,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 20:57:43,533 INFO  L495      AbstractCegarLoop]: Abstraction has 85720 states and 142647 transitions.
[2023-12-25 20:57:43,534 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1467.4) internal successors, (7337), 5 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:57:43,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 85720 states and 142647 transitions.
[2023-12-25 20:57:44,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7338
[2023-12-25 20:57:44,266 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 20:57:44,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 20:57:44,398 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 20:57:44,483 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:44,484 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 20:57:44,484 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 20:57:44,485 INFO  L85        PathProgramCache]: Analyzing trace with hash 1381172514, now seen corresponding path program 1 times
[2023-12-25 20:57:44,485 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 20:57:44,485 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640984436]
[2023-12-25 20:57:44,485 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:44,485 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 20:57:45,114 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 20:57:45,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365517504]
[2023-12-25 20:57:45,116 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 20:57:45,116 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 20:57:45,116 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 20:57:45,117 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 20:57:45,119 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 20:58:23,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 20:58:23,668 INFO  L262         TraceCheckSpWp]: Trace formula consists of 36632 conjuncts, 61 conjunts are in the unsatisfiable core
[2023-12-25 20:58:23,758 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 20:58:43,008 INFO  L134       CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 20:58:43,008 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 20:58:43,008 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 20:58:43,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640984436]
[2023-12-25 20:58:43,008 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 20:58:43,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365517504]
[2023-12-25 20:58:43,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365517504] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 20:58:43,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 20:58:43,009 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-12-25 20:58:43,009 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363534169]
[2023-12-25 20:58:43,009 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 20:58:43,017 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-25 20:58:43,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 20:58:43,021 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-25 20:58:43,021 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2023-12-25 20:58:43,022 INFO  L87              Difference]: Start difference. First operand 85720 states and 142647 transitions. Second operand  has 13 states, 13 states have (on average 564.3846153846154) internal successors, (7337), 12 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 20:59:10,311 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 20:59:10,311 INFO  L93              Difference]: Finished difference Result 380136 states and 632537 transitions.
[2023-12-25 20:59:10,312 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-12-25 20:59:10,313 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 564.3846153846154) internal successors, (7337), 12 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7337
[2023-12-25 20:59:10,316 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 20:59:10,585 INFO  L225             Difference]: With dead ends: 380136
[2023-12-25 20:59:10,585 INFO  L226             Difference]: Without dead ends: 294942
[2023-12-25 20:59:10,664 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7346 GetRequests, 7325 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506
[2023-12-25 20:59:10,664 INFO  L413           NwaCegarLoop]: 13141 mSDtfsCounter, 116390 mSDsluCounter, 127818 mSDsCounter, 0 mSdLazyCounter, 52155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116390 SdHoareTripleChecker+Valid, 140959 SdHoareTripleChecker+Invalid, 52156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time
[2023-12-25 20:59:10,665 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [116390 Valid, 140959 Invalid, 52156 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 52155 Invalid, 0 Unknown, 0 Unchecked, 25.1s Time]
[2023-12-25 20:59:11,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 294942 states.